North Sydney Council Chambers - Wyllie Wing | NSW Environment & Heritage

Culture and heritage


North Sydney Council Chambers - Wyllie Wing

Item details

Name of item: North Sydney Council Chambers - Wyllie Wing
Type of item: Built
Group/Collection: Government and Administration
Category: Office building
Primary address: 200 Miller Street, North Sydney, NSW 2060
Local govt. area: North Sydney
All addresses
Street AddressSuburb/townLGAParishCountyType
200 Miller StreetNorth SydneyNorth Sydney  Primary Address

Statement of significance:

The Wyllie Wing is a physical record of the growth and stature of local government in North Sydney. For architectural historians, it also demonstrates an uncompromising modernist approach by one of Australia's most prominent modernist architects - Harry Seidler. It is a representative, rather than exceptional, example of a 1970s modernist style building.

Heritage Inventory sheets are often not comprehensive, and should be regarded as a general guide only. Inventory sheets are based on information available, and often do not include information on landscape significance, interiors or the social history of sites and buildings. Inventory sheets are updated by Council as further information becomes available. An inventory sheet with little information may simply indicate that there has been no building work done to the item recently: it does not mean that items are not significant. Further research is always recommended as part of preparation of development proposals for heritage items, and is necessary in preparation of Heritage Impact Assessments and Conversation Management Plans, so that the significance of heritage items can be fully assessed prior to submitting development applications.
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 OEH copyright and disclaimer.


Designer/Maker: Harry Seidler
Physical description: The Wyllie Wing is a three storey concrete framed structure planned to face north and south. The concrete frame is strongly expressed on the exterior. The floor to ceiling glass north and south walls are set back behind a column line to allow the overhang of perimeter beams to provide sun shading on the north side. The office floors are clear span uninterrupted by columns, stairs or service elements, all of which occur on the north perimeter. The clear spans of 16 metres are achieved by means of 2.4 metre wide T-beams, precast and pretensioned off site and assembled on the main perimeter by crane. This structural method was employed for the floor of level 3 and the roof. The floor level 2, the off form soffit of the open car park at level 1, has a conventional flat plate slab and shear capital structure, and circular cross section intermediate columns were used to defined parking bays.This building is designed in the Late Twentieth Century International style.
Physical condition and/or
Archaeological potential:
Minor Alteration
Modifications and dates: Some external concrete has been painted.
Further information: Fairfield Muncipal Library (1976, Harry Seidler); Trade Group Offices, Canberra (1970, Harry Seidler)


Historical notes: The Wyllie Wing was completed in 1977.

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 (none)-
4. Settlement-Building settlements, towns and cities Utilities-Activities associated with the provision of services, especially on a communal basis (none)-
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. (none)-

Assessment of significance

SHR Criteria g)
This item is assessed as historically representative locally. This item is assessed as aesthetically representative locally. This item is assessed as socially representative locally. This item is assessed as scientifically representative locally.
Integrity/Intactness: Unsympathetic
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.


Heritage ListingListing TitleListing NumberGazette DateGazette NumberGazette Page
Local Environmental Plan I090302 Aug 13   
Within a conservation area on an LEP     

Study details

TitleYearNumberAuthorInspected byGuidelines used
Heritage Study 401422Brian McDonald & Assoc.August 1995 No

References, internet links & images


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Data source

The information for this entry comes from the following source:
Name: Local Government
Database number: 2181422

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