Substation (under consideration for amendment)

Item details

Name of item: Substation (under consideration for amendment)
Other name/s: Substation #341 Randwick 33Kv Zone (substation), Randwick Zone Substation No. 341, Canberra Street substation
Type of item: Built
Group/Collection: Utilities - Electricity
Category: Electricity Transformer/Substation
Location: Lat: -33.9267316652 Long: 151.2436701750
Primary address: 51-61S Canberra Street, Randwick, NSW 2031
Local govt. area: Randwick
Property description
Lot/Volume CodeLot/Volume NumberSection NumberPlan/Folio CodePlan/Folio Number
LOT1144 DP1104033
LOT1145 DP752015

Boundary:

The boundary follows the lot boundaries.
All addresses
Street AddressSuburb/townLGAParishCountyType
51-61S Canberra StreetRandwickRandwick  Primary Address
Canberra StreetRandwickRandwick  Alternate Address
60 Bundock LaneRandwickRandwick  Alternate Address

Owner/s

Organisation NameOwner CategoryDate Ownership Updated
 Private 

Statement of significance:

Substation, Randwick has State historic and aesthetic/ technical significance as evidence of the rapid expansion of Sydney's high voltage electricity network in the 1920s, undertaken to meet its growing energy demands. The item has historic values as a finely detailed industrial building, a type of larger-scale zone substation and it demonstrates the development of the electricity network across Sydney and NSW through individual contracts between local councils and electricity providers, rather than through a centralised authority.

It has State historic significance as one of a group of 1920s zone substations built by the Municipal Council of Sydney, the largest electricity infrastructure provider in NSW, to provide increased network supply from the newly constructed Bunnerong Power Station. Its construction by 1930 facilitated the development and expansion of the eastern suburbs of Sydney.

Substation, Randwick has State technical significance as a demonstration of early zone substation operation within the rapidly expanding metropolitan electricity network. It was constructed to support electricity supply to a large area of Sydney's eastern suburbs and provided an interconnection with Bunnerong.

It has State aesthetic significance as a highly resolved large-scale zone substation in Interwar Mediterranean style, a landmark in the area and a rare example of a bespoke substation designed to complement the character of its residential area, most completely expressed in the primary Canberra Street facade, including the arched entry portals, corbelled brick parapet, Marseilles tile coping, decorative mosaic tile panel and bronze lettering, faux balconette and brick corbel detailing.
Date significance updated: 01 Jun 26
Note: The State Heritage Inventory provides information about heritage items listed by local and State government agencies. The State Heritage Inventory is continually being updated by local and State agencies as new information becomes available. Read the Department of Premier and Cabinet copyright and disclaimer.

Description

Designer/Maker: City Architect's Office, Municipal Council of Sydney (probably W.H.White)
Builder/Maker: W.S. Baker and Sons, Ltd.
Construction years: 1929-1930
Physical description: EXTERIOR:
Substation, Randwick presents a street facade with elaborate brick decoration designed in Interwar Mediterranean style.

Its principal facade is on Canberra Street, and a secondary facade faces Bundock Lane, to the south. The setting is largely residential, characterised by one to two storey single dwellings, typically early 20th century. The site's rear (east) features mature trees.

Interwar Mediterranean style elements include the asymmetrical massing, use of multi-coloured, half-round terracotta tiles along the parapets (providing a ground-level impression of gabled roofs clad with Spanish (or Marseilles) tiles), grouped arched openings, decorative parapet, metalwork detailing (a faux balconette), expressed brick lintels, and shaped brick corbel formal entrance.

The style is distinctive as applied to a utility and the substation is distinct for its scale, refinement, overall external intactness, and architectural quality. It is also stylistically different in using face brick where the Interwar Mediterranean style (particularly Spanish Mission examples within it) was more typically rendered and painted.

The principal facade comprises two sections: a tall two storey block with high entrance door and lintel arch motifs, and three groupings of triple windows: the two upper ones both have arched window tops; one (the central group) with a decorative, false balconette and simple, painted steel balusters. This bay faces Canberra Street and contains the electric crane and rails.

The primary Canberra Street facade includes arched entry portals, corbelled brick parapet, (Spanish or) Marseilles tile coping, decorative mosaic tile panel and bronze lettering, faux balconette and brick corbel detailing.

The building's height steps down along Canberra Street, consistent with the topography. The second part is also two storied but lower in height, with a symmetrical arrangement, a large arched doorway flanked by pilasters and arch headed windows surmounted by an ornate identity panel. The parapets include curved roof tiles.

The site is built to the street frontage on Canberra Street with a setback and yards to the north and south. The southern Bundock Lane yard and former cable jointing area is enclosed by a brick retaining wall topped with alternating bullnose bricks (likely rebuilt). This appears to have been rebuilt at some stage, as a decorative panel, visible in early photographs, is missing). This returns around to meet the Canberra Street facade. A former brick breezeway was at the western end, with hit and miss brickwork, which has been infilled. Two small distribution substations have also been installed within the yard enclosed by contemporary metal fencing.

Vehicular access to its rear is via Bundock Lane. There are two vehicular entrances fronting Canberra Street, both closed by modern roller-shutter doors.

There is a narrow grassed strip along Bundock Lane, retained by a low brick wall.

The substation is constructed in load-bearing face brick. Bricks are variegated orange and liver-coloured. Voussoirs, lintels, and other faade details are articulated by expressed brickwork and sills are of moulded concrete. The windows are metal framed multi-paned. All windows have been fitted with external security mesh.

Its name is in rendered stucco relief on the pediment above the entrance to the switch and control room, curving to match the arched doorway. The initials 'M.C. of S' has been replaced by 'S.C.C' but the rest of the name is original: 'ELECTRICITY DEPT', 'SUBSTATION No. 341'. A rectangular ventilator panel above the pediment is infilled with a honeycomb of arched terracotta elements. The southern and eastern frontages of the upper level of the crane bay have been rendered to combat water ingress problems.

The switching bay's southern facade is simpler, with three pairs of steel arched windows with arched brick headers and a decorative extruded header brick detail. Consistent with the principal facade, the parapet is capped with decorative corbelled brickwork and Marseilles tiles. The facade features three later vents, which do not contribute to the State significant values of the item.

The main building has skillion roofs behind parapets, clad with corrugated metal sheeting; the transformer cubicles are each separately roofed with a gable roof clad in corrugated asbestos cement sheeting.

Transformer Bays, Northern Yard and access road:
The transformer bay masonry facade adjoins the handling bay. The latter's eastern (rear) facade features a large roller door and pair of steel arched windows. The northern yard and road are accessed via handling bay roller door. The road assisted loading and maintaining transformers into and from bays, via linear inground metal tracks running east-west across the yard. The yard has six two-storey bays, five for transformers and one the former Reactor bay. Transformer bays run along the building's north, each with large opening and roller door, modified to only reach c1.5m above ground, the lower space shut by a pair of fixed, metal-framed gates clad with corrugated metal. Each bay opening is surmounted by a ventilation panel similar to that on the front facade.

Each bay was accessed via a series of perpendicular north-south tracks off the road. Large metal eyebolts set into concrete along the road allowed ropes to be threaded through dollies to assist moving transformers. Two original concrete eyebolts remain at the yard's west. Another survives at the far east: corroded but salvageable (for interpretation). The fourth bay from the west was the 'Reactor bay'. Its facade is more solid, with two door openings at ground level, one a later insertion (it was subdivided into two rooms) while the upper floor features paired arched steel windows. The upper facade section features a series of decorative terracotta vents. One original rainwater head is at its north-west, adjoining the handling bay. A single pedestrian door accesses the store area and switch room on its south. The bays have peaked corrugated asbestos cement roofs on steel trusses. Each has corrugated metal doors in front. Bays each end with small metal awnings shelter a hoist to raise doors. Piping for a later fire suppression system runs across the front of the bays above lines and enters each through a decorative vent.

Amenities Building:
A demountable amenities building from the 1980s, which does not contribute to the significance of the item, is to the rear (south-western corner) of the substation.


INTERIOR:
Despite the window arrangements suggestive of multiple storeys, there are no internal floors. The floor plan is designed on a single level.

Internally it comprises a series of large open spaces including the switchroom and handling bay, alongside a series of smaller individual transformer bays accessed via the transformer access road. The switch room is on the southern side of the floor, the handling bay to the west, and the transformer bays on the north side.

Handling Room:
In the building's north-west corner, this is a triple-height volume accommodating the crane bay and original electric crane machinery, accessed via a wall fixed ladder. It features three updated roller doors, one used to access the transformer yard at the rear, the other two fronting Canberra Street. The floor is concrete and at the northern end incorporates a pair of in-ground tracks used for loading and maintaining the transformer bays.

The space features large arched fixed windows and rectangular 18-pane windows on the upper storey and smaller rectangular ten-pane windows on the ground floor. Several original fixtures such as signage, lights and control panels are mounted onto walls. On the southern side a large opening accesses the switch room via a raised platform and stairs.

The three tonne manual (overhead, travelling) crane attached to the ceiling (installed in 1959) remains, as well as brick pilasters along walls which support it (Urbis 2025: 19-22; with additional comments from Ausgrid, 5 and 6/2026).

Switchroom:
This is the largest space and originally housed switching equipment. It is accessed via the principal facade, via a steep stair from within the entry. It is a large double height volume space, set atop a raised reinforced concrete floor slab, with walls painted two-tone green and cream. The sub-floor incorporates a series of pits and access hatches, for maintenance and connects to the cable jointing area on the southern side (below the yard).
Physical condition and/or
Archaeological potential:
Good (external)(1994).
Some terracotta tiles missing. Graffiti (Extent Heritage 2007).
Date condition updated:29 May 26
Modifications and dates: Fundamentally, the Randwick Zone Substation has not substantially changed from its 1930 configuration (EnergyAustralia CMP: 2008).
11/1929 - 4/1930: construction (20 week time frame)
7/1930 - sewer service installed
9/1931 - fire damage to Brown Boven tap changing equipment on transformers no's 2 - transformer cubicle damaged
Above all (Urbis 2025: 42)

Early 1930s: numerous complaints of water ingress, damage to internal paint and several attempts to repair the roof. The external southern side of the handling bay, upper level, was subsequently rendered to address water ingress (Extent Heritage 2017: 31).
1935: 33kV oil circuit breakers rearranged (Urbis 2025: 42)
1935: Sydney County Council took over the site, and (1956, 1957) agreed to sell small slivers of land (c.2" in width) along the northern boundary to adjacent property owners to help them bring their sites up to the minimum 5000' sq. size required by Council for subdivision (Extent Heritage 2017: 34, 36).
1935+ SCC went to great lengths to accommodate neighbours to the north who had sought to subdivide their properties. This involved SCC agreeing to sell small slivers of land (in the order of 2 inches in width) along the northern boundary of the substation site to the adjacent owners, to help them bring their sites up above the minimum 5000 sq ft lot size required by Randwick Council for subdivision.
1937: Reyrolle oil circuit breaker removed and relocated to Substation No. 194, Blacktown
1938: overhead relays installed on transformer panels

1947: third 10,000kV transformer installed
Above all (Urbis 2025: 42-43) and switching and control equipment substantially reconfigured (11/1947) - two 33kV Reyrolle switching panels and one 33kV bus section switch installed (Urbis 2026: 43)
1948 a fourth zone transformer was in operation on the site.
A new fan for transformer No. 4 and thermostatic controls for transformers 2, 3 and 4
1/1949: a fire in the substation. 10/1949 - light and power board replaced. 12/1949: ammeters and current transformers installed on feeders (Urbis 2025: 43).

1950: relay control panels to transformers replaced.
1951: signal cabinet installed (Urbis 2025: 43). Three 33kV high voltage feeders installed from Bunnerong Power Station *Extent Heritage 2017: 33).
1953: transformer no. 4 replaced
1955: installation of motorised roller shutter doors
1956: major reorganisation of Randwick substation (last three, Urbis 2025: 43, 78).
1957, 1967: the capacity was increased each decade, with new (10MVA) transformers installed in 1957 and again in 1967. Switchgear and control gear was also upgraded throughout this period (e.g.: new 33kV switchgear in 1957; new 11kV switchgear, in the 1960s; three sets of 33kV switchgear replaced in 1967). New control room (c.1960s, in the location which originally housed three small distribution transformers) and in the mid-1970s, installation of fire control equipment in the switch room (Extent Heritage 2017: 34, 48).
1959: major upgrade - 33kV switchboard reconfigured to four zones. New 3 ton crane installed, replacing old 2 ton crane (Urbis 2025: 43).

1966: Reyrolle 11kV switchgear recovered and replaced with Reynolle (ex-Hunters Hill Zone Substation) and Westinghouse switchgear.
1967: 17 new 11kV switchgear panels installed. 2 transformers decommissioned and three 33kV switchgear replaced.
1969: extra 250kVA transformers installed.
1960s: construction of the control room, partitioning of the Reactor Bay.
1971: five new Westinghouse switchgear panels installed.
1974: new fencing and gates installed.
1975: relays replaced
1978: new boundary fences installed (timber palings)
Above all Urbis (2025: 44, 78).
1970s: customer load control equipment (in cells)(subsequently modified).
The reactor bay, the only one accessible through an internal door, was partitioned for use as a battery room and storage area. The latter was enclosed by a concrete block wall.
Mid-1970s: fire curtains and auto-opening smoke vents installed in switch room (Extent Heritage 2017: 48).

Mid-1980s - major fire services upgrade, which included fireproofing works to transformer bays and control room. File notes at this time also indicate staff amenities were to be closed on the site, with staff accommodation relocated to other sites nearby (Extent Heritage 2017: 32).
1980s: A new demountable amenities block was added to the site, necessitating demolition of the previous toilet block at the eastern end of the building.
1983: auto closing relay panel installed.
1986: order to install metal screening and foam injection for control systems on all transformers
1989: fire-rated ceiling and doors to control room, fuse switches relocated, smoke vents and curtains installed to switchboards
Above all Urbis (2025: 44).

Ongoing equipment upgrades and associated minor building works were the only improvements made. Randwick Zone substation remained externally intact without any significant alterations. (Murray 2025).

Gutters and downpipes replaced. Doors replaced. Security screens retrofitted to windows. Modern chain wire fencing. Exterior lights to transformer yard. Brick extension at rear. (Sydney Electricity s.170 register 1994; Extent Heritage 2017).
Fire service pipework has been added to the transformer bays (Extent Heritage 2017: 45).

c.2005: replacement of CAC roof with a corrugated metal (Colourbond) roof (Extent Heritage 2017: 34).

Aside from upgrading equipment and attendant minor building works, the site is not significantly altered externally from its original configuration. The internal equipment has been the subject of some replacement and reconfiguration, as well as the installation of a new control room (probably in the 1960s) and of fire control equipment in the switch room in the mid-1970s.

2010: Some guttres and downpipes replaced and new aluminium air vents installed (Urbis 2025: 79).
2010 -14: operational redundancy and progressive decommissioning with the completion of Kingsford Zone substation (Extent Heritage 2017: 34).

There is a narrow grassed strip along the Bundock Lane boundary, retained by a low brick wall. This appears to have been rebuilt at some stage, as the decorative panel fronting Canberra Street, visible in early photographs, is missing. (this corresponds to the hit and miss brickwork noted of a breezeway on this frontage, being infilled (pre-2008) (EnergyAustralia 2008). The southern (substation) facade has had several rectangular ventilation openings cut into its brickwork, sealed with a galvanised steel mesh (Extent Heritage 2017: 43).

2014/15: the substation was fully decommissioned. This was followed by removal of (transformers and any operational or reuseable switchgear) equipment and various minor building works in 2016.

2017: decontamination and remediation work. Removal of all transformers in transformer cubicles, decommissioning of two small distribution substations in Bundock Lane Yard, and removal of their equipment, leaving only the chain-wire compounds. This included removing a large inground concrete oil separator tank, on the building's north-east side (Extent Heritage 2017: 42)

The former underground oil recovery tank on the north-east side was removed and surrounding impacted soil / fill material excavated to a maximum depth of 2m below ground level or to bedrock and the edge of the adjacent substation wall to the west and site boundary to the east. Prior to commencement of decontamination (works), the majority of the electrical control and switchgear is to be removed (Extent Heritage 2017: 1, 42, 48). Also, replacement of removed soil / fill with clean fill.

Some gutters and downpipes have been replaced in the last 5 years in a profile that does not match the original. This is mainly visible along the Bundock Lane elevation. There are a few remaining rain(water) heads in the original style on the north side of the building. New aluminium vents have also been cut into the brickwork along the southern wall of the switch room. The cumulative impact of these changes is minimal (Urbis 2025: 18).
Further information: Whole site however transformer yard is not considered significant fabric. (Extent Heritage 2007).
Current use: electricity substation
Former use: Aboriginal land

History

Historical notes: Statement of Country:
The 'Eora people' was the name given to coastal Aboriginal people around Sydney. Central Sydney is therefore often referred to as 'Eora Country'. (Heiss 2015). Those living south of Port Jackson to Botany Bay were the Gadigal and Bidjigal people who spoke Dharug (Randwick Library webpage 2003), while the local clan name of Maroubra people was "Muru-ora-dial" (City of Sydney webpage, 2003).

Pre-1780s, local Aboriginal people in the area used the site for fishing and cultural activities - rock engravings, grinding grooves and middens remain in the area. (City of Sydney webpage 2003).

By mid-nineteenth century the traditional owners had typically either moved inland in search of food and shelter, or died as the result of European disease or confrontation with colonisers (Randwick Library webpage 2003).

The Aboriginal community's history in Randwick spans thousands of years, and their ongoing relationship with the land is integral to their identity.

EARLY ELECTRICITY NETWORKS IN NSW
Prior to introducing electricity in NSW, streets were lit with gas and houses used gas, kerosene and fat oil lamps, or candles. Mid to late 19th century transport and industry used steam power. Technological advances in the 1870s and 1880s made electricity a feasible lighting and power alternative to gas and steam. Early supply was from small generators and early providers of networks were principally municipal Councils.

The first instance of NSW municipal electric power supply was streetlighting in regional centres experiencing major growth in Tamworth (1888), then Young (1889), Lambton (1890) and Newcastle (1891).

ELECTRIFICATION OF SYDNEY
Sydney's first public demonstration of electric light was in 1863 (Australian Energy Regulator 2007: 2). Early supply was from small generators throughout the city for specific buildings or events. Large scale production was in its infancy in NSW in the 1890s, and the number of electrical works insignificant compared to municipal gas works. Local municipalities pushed for legislation allowing them to generate electricity, build infrastructure, light streets, supply public and private places. The first Sydney council to supply private homes, businesses and street lights was Penrith (1890), from their electric light station (demolished) (Nepean Times 1957: 1). Another was Redfern (1891) which remains (adaptively reused).

By far the biggest was the Municipal Council of Sydney (MCS) which got the power to establish networks and supply private clients by the NSW government under the Municipal Council of Sydney Electric Lighting Act 1896. It started in 1898 building the electrical network to MCS's area, from Millers Point to Chippendale, Surry Hills and Moore Park (City of Sydney n.d.).
While originally supplying MCS's area only, it soon became NSW's biggest municipal supplier.

MCS's first alternating current (AC) power station for street lighting and private use was at Pyrmont, 1904. There were two other major generators. NSW Government Tramway and Railway Departments electrified public transport. Ultimo Powerhouse (1899) electrified trams, while White Bay Power Station (SHR 01015) followed in 1913, supplying suburban rail and bulk supplying other municipalities and county councils. Smaller private companies supplying city businesses were snapped up by MCS from 1907-13.

MCS quickly established itself as one of Sydney's two primary electricity suppliers, with the Electric Light and Power Supply Corporation (ELPSC) which from Balmain Power Station, supplied inner western suburbs of Sydney from 1909 to 1956.

Two types of substations emerged, zone and distribution substations. Zone substations were large complex facilities receiving power from bulk supply power stations and reducing voltage for local distribution. Distribution substations reduced voltage further and supplied customers.

City Building Surveyor and City Architect Robert Hargreave Brodrick and his branch designed substations to be substantial, ornamental pieces of civic infrastructure (Vade Mecum 1906: 200). Quality of design and construction was high, producing fine civic architecture that sat comfortably in its surrounds. Land was either purchased from owners or resumed if necessary.

In 1904, MCS built its first six distribution substations: Town Hall, Lang Park, Athlone Place (Ultimo), Pyrmont Street (Pyrmont), Oxford Street (Darlinghurst) and Wilson Street (Woolloomooloo). None remain in use, and four (Town Hall, Lang Park, Athlone Place and Pyrmont Street) are demolished. Oxford Street is listed on the State Heritage Register as Taylor Square Substation No.6 & Underground Public Conveniences (SHR 01700) and Wilson Street is used as a private residence.

MCS first began supplying other areas of Sydney in 1905. A substation was built to supply a wing of the Royal Hospital for Women in Paddington and another for Camperdown Children's Hospital (Murray, 2025). In 1910, four municipalities entered agreements with MCS for extension of mains into their areas, a rapid escalation to the extent of the network.

By 1914 MCS supplied 23 municipalities and required additional infrastructure. On 25 May 1914 it decided to erect a 33,000 volt transmission system to supply outer areas including the western suburbs and north of the harbour. (Mackenzie 1998: 10, 12). Continual network expansion required additional infrastructure throughout greater Sydney.

Rapid network expansion in the 1920s was on a scale unprecedented in Sydney or NSW and required additional infrastructure throughout greater Sydney. This means that a significant portion of MCS's substations were built from 1921 onwards.

MCS built Bunnerong Power Station at Botany between 1925 and 1929, to increase capacity for supplying electricity to outer Sydney suburbs such as Randwick. It was among Australia's most modern power stations, equal in size to White Bay, and capable of supplying one third of NSW's electricity.

In 1928 large extensions were made to the 30kV underground electricity systems. Several zone substations (called 'step-down' or '30kV power substations' then) were commissioned in the mid- to late-1920s to support the 33kV (later 30kV) transmission system. These were built at Zetland (No.188), Crow's Nest (No.187), Pymble (No.195), Mosman (No.180) and Balgowlah (No.191) to meet growing demand and anticipating greater capacity once Bunnerong was operational. By 1930 there were thirteen 30kV substations on the network, each named after their district or locality. (Vade Mecum 1930: 247)

Growing construction costs probably led to a pragmatic simplification and standardisation of zone substation designs by 1926-1930. MCS reported in 1930 'three particular designs of 30 kV substations have been prepared to meet certain conditions, such as locality, area of land available, etc.'. The three representative stations cited demonstrating the new substation designs were Zetland Substation, Marrickville Substation and Crows Nest Substation. (Vade Mecum 1930: 249-253).

MCS's network control was removed via the Gas and Electricity Act 1935 which reconstituted its Electricity Department as independent entity, Sydney County Council (SCC). In 1952 the NSW Electricity Commission became overall State authority for providing bulk electricity supply to NSW retailers. It remained in control until dissolved with the Sydney Electricity Act 1990.

A series of private and public entities now provide electricity and its infrastructure in the Sydney area, overseen by the NSW government. Ausgrid now owns most distribution substations and zone substations (excluding the high-voltage transmission network).

RANDWICK
Two grants were in 1824 to Francis Marsh, and 1839 to William Newcombe. Randwick takes its name from Randwick, Gloucestershire, as suggested by brothers Simeon and James Pearce, who bought and sold land here. Simeon campaigned for a road to Coogee and incorporation.(Pollon and Healy 1988: 217-8).

Randwick's progress was slow, isolated by swamps and sandhills and from early days, divided. Its people were mixed. The wealthy lived in large houses promoted as fashionable. But market gardens, orchards and piggeries continued alongside, run by the working class. In 1858 when the NSW Government passed the Municipalities Act, Randwick was first to apply.

Randwick long hosted sporting events, duels and illegal sports. Its first racecourse was built in 1860. John Tait in 1863 established Randwick Racecourse, Australia's first to run racing commercially. This boosted progress and horse-buses gave way to trams linking it to Sydney. (Pollon and Healy 1988: 218-9).

Improved transport (trams from 1880) and governance led it to prosper and thrive, with increasing villas, housing, shops and flats through the Victorian and Interwar periods (Pollon and Healy 1988: 218-9). An example of gentlemen settlers in Randwick is Newmarket House, built on the site of the 1861 Newmarket Hotel. Its 1880s southern wing for the Fennelly /James White interests beginning in earnest to train thoroughbred racehorses. This led to constructing the Big Stables, Sale Ring and Training Stables which host major annual horse sales. Another former villa estate is Aston Lodge, built by 1865 as a villa estate, but from 1891 to 1901 private then religious schools under the Loreto Order, and from 1901 to 1984 aged care, Mount St. Joseph school and convent, under the Little Sisters of the Poor. From the 1880s, larger scale industry began to penetrate Randwick's outskirts, with tram workshops, later tobacco manufacturing, paper mills, bitumen, oil and chemical refineries. Bunnerong Power Station was built through the 1920s. (Randwick Heritage Study 1986).

CANBERRA STREET SUBSTATION:
MCS began planning Randwick's Zone Substation for a high voltage feed from Bunnerong Power Station in 1927, investigating sites before selecting one offered by sandstone quarry owner Edward Noonan. Quarrying appears to have been its only use prior to constructing the substation in 1929 (Urbis 2025: 34). Substations such as Randwick's demonstrate MCS's rapid network expansion once Bunnerong was identified as being able to support electricity production for outer suburbs.

It was designed by Walter F White, in MCS' architecture department. Robert H Brodrick, who had overseen this department for years, retired in 1928. The design is based on an earlier design template established by Brodrick, with the elevation and floor plan of the Marrickville Substation type, but with Spanish Mission ornamental brick detailing.

It was constructed as a step-down substation for high voltage feed from Bunnerong. Builders W S Baker and Sons Ltd were contracted on 26 November 1929 to construct it. Randwick Municipal Council approved the application on 6 December 1929. It was completed in 1930, with cost blow-outs and from the start, problems of water ingress from roof leaks and the upper side of the sloping site.

The substation's capacity was gradually increased over two decades with rising electricity demand. It was originally fitted with two transformers. SCC took it over in 1935. Post-war demand for electricity led to a third zone transformer being installed in 1947, reconfiguring switching and control equipment and a fourth zone transformer being installed in 1948.

Capacity was increased in 1957 and 1967. Ongoing equipment upgrades and associated minor building works were the only improvements and it remained externally intact.

Construction of Kingsford Zone Substation in c.2010-2014 led to Substation, Randwick becoming redundant. Ausgrid determined it surplus to requirements and fully decommissioned it in 2014-2015. All equipment was removed in 2016 and decontamination and remediation works were done in 2017. The site is currently vacant until a disposal process through public sale can commence.

Historic themes

Australian theme (abbrev)New South Wales themeLocal theme
3. Economy-Developing local, regional and national economies Environment - cultural landscape-Activities associated with the interactions between humans, human societies and the shaping of their physical surroundings Developing local, regional and national economies-National Theme 3
3. Economy-Developing local, regional and national economies Technology-Activities and processes associated with the knowledge or use of mechanical arts and applied sciences Technologies for electrical supply-
4. Settlement-Building settlements, towns and cities Towns, suburbs and villages-Activities associated with creating, planning and managing urban functions, landscapes and lifestyles in towns, suburbs and villages Developing suburbia-
4. Settlement-Building settlements, towns and cities Towns, suburbs and villages-Activities associated with creating, planning and managing urban functions, landscapes and lifestyles in towns, suburbs and villages 20th Century infrastructure-
4. Settlement-Building settlements, towns and cities Utilities-Activities associated with the provision of services, especially on a communal basis Providing electricity-
4. Settlement-Building settlements, towns and cities Utilities-Activities associated with the provision of services, especially on a communal basis Distributing electricity-
7. Governing-Governing Government and Administration-Activities associated with the governance of local areas, regions, the State and the nation, and the administration of public programs - includes both principled and corrupt activities. Developing roles for government - building and operating public infrastructure-
7. Governing-Governing Government and Administration-Activities associated with the governance of local areas, regions, the State and the nation, and the administration of public programs - includes both principled and corrupt activities. Developing roles for government - providing electricity-
8. Culture-Developing cultural institutions and ways of life Creative endeavour-Activities associated with the production and performance of literary, artistic, architectural and other imaginative, interpretive or inventive works; and/or associated with the production and expression of cultural phenomena; and/or environments that have inspired such creative activities. Architectural styles and periods - Interwar Mediterranean-
8. Culture-Developing cultural institutions and ways of life Creative endeavour-Activities associated with the production and performance of literary, artistic, architectural and other imaginative, interpretive or inventive works; and/or associated with the production and expression of cultural phenomena; and/or environments that have inspired such creative activities. Applying architectural design to utlilitarian structures-

Assessment of significance

SHR Criteria a)
[Historical significance]
Substation, Randwick has State historic significance for its role in the early development and expansion of the electricity supply network in NSW. The substation provides tangible evidence of how the expansion of the electricity network across Sydney and NSW occurred through provider-led initiative rather than through a centralised State authority. During this period, the Municipal Council of Sydney was the dominant electricity provider in Sydney, supplying power well beyond its municipal boundaries.

Built during a period of significant growth in electricity infrastructure in NSW, Substation, Randwick represents a major expansion of Sydney's electricity network. This expansion was driven by the broader need to establish and extend the electricity grid across the metropolitan area. It reflects the Municipal Council of Sydney's shift towards strategic network planning rather than responding to requests for power from individual suburbs. Improved access to electricity supported development across Sydney's eastern suburbs by enabling increased residential, commercial and industrial activity, fostering interconnection, and extending the metropolitan reach of NSW's capital. Its historic significance rests primarily in its form, fabric and historic associations.
SHR Criteria c)
[Aesthetic significance]
Substation, Randwick has technical significance as a fine example of a high voltage zone substation that was operational from 1930, one of the zone substations built to receive power via interconnection with the newly constructed Bunnerong Power Station until it was decommissioned in 2014. Substation Randwick was an important interconnection within Sydney's electricity network, converting high voltage power to a lower voltage to be distributed to a large area of Sydney.

Substation, Randwick reflects the technical characteristics of high voltage zone substations established during the interwar period to support the expanding metropolitan network in response to the demand in NSW. The 33kV high voltage network from Bunnerong Power Station required new types of substations to handle the enormous amounts of power being distributed. Substation, Randwick, is a highly intact "Marrickville" type substation, a standardised design which was created to facilitate the unprecedented rapid expansion of the largest electricity network in NSW. It retains a 35 tonne overhead crane in the handling bay, reflecting one of the technical characteristics of high voltage substations established in the interwar period.

It has State aesthetic significance as a highly distinct piece of industrial NSW, in terms of its refinement, the intactness and character of its primary Canberra Street facade, and architectural quality. It is a highly resolved large-scale zone substation in interwar Mediterranean style resembling a residential flat building of the period, and an architectural landmark in the surrounding area. Its design incorporates signature asymmetrical asymmetrical massing, faade elements such as brick corbel detailing, a faux balconette and terracotta tiling on the Canberra Street facade. The style is distinctive as applied to a utility building, and unusual in its use of face brick as an outstanding feature, where the Mediterranean style was more typically rendered and painted.
Assessment criteria: Items are assessed against the PDF State Heritage Register (SHR) Criteria to determine the level of significance. Refer to the Listings below for the level of statutory protection.

Procedures /Exemptions

Section of actDescriptionTitleCommentsAction date
57(2)Exemption to allow workHeritage Act - Site Specific Exemptions HERITAGE ACT, 1977

ORDER UNDER SECTION 57(2)

ENERGYAUSTRALIA - SITE SPECIFIC EXEMPTIONS


I, the Minister for Planning, on the recommendation of the Heritage Council of New South Wales, in pursuance of section 57(2) of the Heritage Act, 1977, do, by this my order

(a) under section 57(2) of the Heritage Act grant exemption from Heritage Council approval under Section 57(1) of the Heritage Act, as outlined in Schedule A, for the following activities described in 1-15 below, subject to review and approval by a person with demonstrated heritage expertise and experience in similar buildings and sites.

1. Replacement of corrugated asbestos roofing systems, box gutters and eaves with corrugated metal roofing system which maintains the general profile of the building roof and does not require replacement of structural fabric of the roof and retains any decorative features of the original roof design (e.g. exposed eaves, decorative soffits or barge boards). The choice of roofing material should not preclude the reinstatement of the original form of rainwater goods.

2. Replacement of non-original switchgear and associated internal building rearrangements to accommodate new switchgear, which does not require the significant removal of building fabric.

3. Replacement of non-original internal and external transformers.

4. Internal installation of fire mitigation apparatus and mechanisms including fire curtains, sheeting of structural members to improve fire rating and replacement of internal fire doors with asbestos cores.

5. Minor works necessary to preserve and enhance the security of the building including the replacement of locks, installation of internal security screens and grilles and the installation of electronic access control devices.

6. Maintenance and minor repairs that are necessary to preserve and maintain the building and are within the limits of the standard exemptions of the Heritage Act.

7. Excavations and reinstatement associated with installation or replacement of conduits, cables, services and pipes, where this will occur within existing cable egress areas or existing cable jointing areas and there are no known or suspected archaeological relics.

8. Minor works internal to the building including:
a) Replacement of Customer Load Control Equipment.
b) Upgrade of non-original toilet / washroom facilities.
c) Upgrade of control room equipment.
d) Refurbishment of battery rooms.
e) The removal of asbestos materials such as interior and external sheet linings, fire proofing, troughing, conduits, window sealant, asbestos fire doors etc.
f) The removal of devices and equipment containing mercury or other heavy metals.
g) Removal of lead-based paint and reinstatement with the original paint scheme.
h) Replacement of non-original lighting fixtures, including electrical controls where they are required for security or safety.

9. Minor internal works necessary to upgrade and enhance the structural integrity of the building which do not impact on the heritage significance of the building including:
a) The internal fitting of improved handrails and or stairs to access higher stories for the reason of safe access.
b) The upgrade of non-original internal lifting / crane equipment in loading docks specifically required for manual handling of equipment to meet WorkCover requirements.

10. Temporary works including containment areas, scaffolding and enclosures necessary for the carrying out of maintenance, enhancement or upgrading works.

11. Installation of safety or information signs, not being for commercial or advertising purposes.

12. Maintenance and painting of finished building surfaces where colour of finish is matched to the original colour.

13. Decommissioning of a substation and removal of non-original equipment.

14. Installation of oil containment systems in order to meet NSW EPA Pollution Licence requirements, in the following circumstances:
a) Masonry or concrete bunding around transformers and within existing transformer bays.
b) Underground oil containment works or systems in areas where there are no known or suspected archaeological relics.

15. Ventilation and air conditioning works limited to:
a) Replacement of existing external vents and louvres in a style consistent with the external appearance of the building.
b) Replacement of non-mechanical rooftop ventilators in a style consistent with the form, scale and position of existing ventilators.
c) Internal air conditioning systems with no externally visible components and which do not require the removal of original building fabric.

KRISTINA KENEALLY, M.P.,
Minister for Planning
Sydney, 5 Day of May 2009


SCHEDULE A

Item State Heritage Register Listing Number

Electricity Power House, Crows Nest SHR 00931
Relay Test Centre, Haberfield SHR 00933
Substation, Ultimo SHR 00934
Substation, Randwick SHR 00935
Substation, Balgowlah SHR 00936
Substation, Manly SHR 00938
Substation, Paddington SHR 00939
Substation, Pymble SHR 00940
Substation, Annandale SHR 00941
Electricity Substation No 167, Auburn SHR 01790
Electricity Substation No 269, Bondi SHR 01791
Electricity Substation No 349, Randwick SHR 01792
May 15 2009
CMP-EndorseConservation Plan submitted for endorsement60 Bundock Lane, Substation Sep 12 2019
57(2)Exemption to allow workStandard Exemptions HERITAGE ACT 1977

ORDER UNDER SECTION 57(2) TO GRANT STANDARD EXEMPTIONS FROM APPROVAL

I, Penny Sharpe, the Minister for Heritage, on the recommendation of the Heritage Council of New South Wales and under section 57(2) of the Heritage Act 1977:

revoke the order made on 2 June 2022 and published in the Government Gazette Number 262 of 17 June 2022; and

grant an exemption from section 57(1) of the Act in respect of the engaging in or carrying out the class of activities described in clause 2 Schedule A in such circumstances specified by the relevant standards in clause 2 Schedule A and General Conditions in clause 3 Schedule A.

This Order takes effect on the date it is published in the NSW Government Gazette.

Dated this 29th day of October 2025
The Hon Penny Sharpe MLC
Minister for Heritage

For more information on standard exemptions click on the link below.
Nov 7 2025

PDF Standard exemptions for engaging in or carrying out activities / works otherwise prohibited by section 57(1) of the Heritage Act 1977

Listings

Heritage ListingListing TitleListing NumberGazette DateGazette NumberGazette Page
Heritage Act - State Heritage Register 0093502 Apr 99 271546
Heritage Act - s.170 NSW State agency heritage registerElectricity Substation No. 341343044901 Nov 94   
Heritage study     

Study details

TitleYearNumberAuthorInspected byGuidelines used
EnergyAustralia Heritage Register Review2007 MacLaren North  No
Sydney Electricity S170 Heritage & Conservation Register19943662 (volume 2 of study); 3430449 (HMS)Schwager Brooks & Partners Pty LtdGraham Brooks No

References, internet links & images

TypeAuthorYearTitleInternet Links
WrittenAttenbrow, Val A pre-colonial history View detail
WrittenAusgrid2026Ausgrid Substation Histories - history and development of noted substations (including Randwick/Canberra St.)
WrittenCity of Sydney Archives1929Erection and completion of electricity, Canberra Street Randwick substation, 1929 (contract and plans) View detail
WrittenExtent Heritage2017Randwick Zone Substation (Substation No. 341) Conservation Management Plan Update
WrittenExtent Heritage Advisers2017Randwick Zone Substation (Substation No. 341) Conservation Management Plan Update
WrittenFuturePast Heritage Consulting2011Balgowlah Zone Substation, 83 Griffiths Street, Balgowlah - Conservation Management Plan, final, 7/2011 View detail
WrittenHeiss, Anita2015"Aboriginal People and Place" View detail
WrittenMackenzie, Julie1998The Fate of Electrical Substations of Heritage Significance
WrittenMurray, Lisa2013'Civic Spaces and the City Architect'
WrittenNorth, Mac2007EnergyAustralia Heritage & Conservation Register Review Project, Final Report
WrittenPennington, James2024More Sydney electricity supply history
WrittenPennington, James2012Electricity Substations of the Sydney Municipal Council and other local authorities
WrittenPollon, Frances (ed.) & Healy, Gerald1988Randwick (entry)
WrittenRandwick City Council2003'Randwick 2031' View detail
WrittenRandwick City Council2003Electricity substation no. 341, 55-61 Canberra Street, Randwick (22/7/2003) View detail
WrittenRandwick City Council2003Electricity substation no. 341, 55-61 Canberra Street, Randwick (22/7/2003) View detail
WrittenRandwick City Council2003Electricity substation no. 341, 55-61 Canberra Street, Randwick (22/7/2003) View detail
WrittenSchwager Brooks and Partners1994Sydney Electricity Heritage & Conservation Register (section 170 register), volume 2 View detail
WrittenSproule, John1997How Electricity came to Sydney's Northern suburbs
WrittenSydney Electricity1994Electricity Substation No. 341 (entry) View detail
WrittenSydney Municipal Council1930Vade Mecum 1930 View detail
WrittenSydney Municipal Council1930Glass Plate Negatives - Substation 341 - Randwick Zone Substation - c.1930 View detail
WrittenSydney Municipal Council1930Glass Plate Negatives - Substation 341 - Randwick Zone Substation, c.1930 View detail
WrittenSydney Municipal Council1930Glass Plate Negatives - S-341 Randwick Substation - 31/10/1930 View detail
WrittenSydney Municipal Council1929plans and blueprints - extracted from 'Erection and completion of electricity, Canberra Street Randwick substatoin, 1929 (contract and plans) View detail
WrittenSydney Municipal Council1906Vade Mecum 1906 View detail
Written'The Daily Telegraph'1926'Power Cables. In Northern Suburbs. Future Needs' View detail
WrittenUrbis2025Conservation Management Plan, 55 - 61 Canberra Street, Randwick
WrittenWilkenfeld, and Spearitt, Peter2004Electrifying Sydney: 100 years of EnergyAustralia

Note: internet links may be to web pages, documents or images.

Data source

The information for this entry comes from the following source:
Name: Heritage NSW
Database number: 5011963
File number: S97/00023/1; EF14/5236


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