SIU Consulting Projects

Preparing a Conservation Management Plan to conserve and manage a local heritage item (Frogmore House) as part of reimagined hilltop parkland and public asset at the Werrington Precinct. 

Respecting the almost 200 years of alterations and substantial additions, while recognising the compromised intactness and integrity, that provides opportunities for a more flexible approach to conservation and development potential.

The vision for the Werrington Precinct is to create a vibrant residential precinct that brings together new high-quality housing, jobs, public open space and innovation.  

Client: Stockland Development

Collaborators: TKD Architects

Engaged as the project heritage advisor to provide heritage advice, liaise with Council, prepare a Photographic Archival Recording and a Heritage Interpretation Strategy. 

As well managing the tender, selection and work of a Fabric Conservation Specialist to undertake a fabric/condition assessment, advise on the insitu retention as well as salvageability and conservation requirements, and prepare a Heritage Fabric Management Plan. 

Client: Aland Development

Collaborators: WilkinsonEyre

Commissioned to provide heritage advice, participate in a pre-DA process, and prepare a Statement of Heritage Impact in relation to the proposed demolition of the existing structures and the construction of two, two-storey residential buildings within a heritage conservation area in Glebe.  

Client: Property Owner

Collaborators: atelier Dee and Creative Planning Solutions

Reimagining a historic structure, such as the Sydney Harbour Bridge south-east pylon, into the new experiential and interactive Sydney Harbour Bridge Museum, befitting of its national heritage significance and its international iconic reputation.

Reimagining why and how locals and tourists visit museums, expectations about communication (sights, sounds, touch and even feelings), desire for interactivity with exhibitions and immersive spaces, and the ability to share their experiences digitally. 

Client: BridgeClimb Sydney

Collaborators: Thylacine and Building Guild

Research and assessment services were commissioned in response to an Interim Heritage Order placed on the subject properties following the lodgement of development application with North Sydney Council. 

The primary purpose of the report was to investigate and determine if the properties met the threshold for local heritage listing, specifically under Criterion (F) - Rarity or Criterion (G) - Representativeness.  

Key to this report was a comprehensive comparative analysis and application of significance indicators and thresholds.

Subject to NSW Land and Environment Court proceedings. 

Client: Property owners and developer

Collaborators: Mackay Strategic and Mills Oakley

Engaged to provide strategic heritage advice, undertake a peer review, and prepare a suite of heritage principles and recommendations in relation to the North Sydney Station Precinct, which comprised three separate sites subject to individual State Significant Development declarations by the NSW Housing Delivery Authority.

Client: Lighthouse Project Group

Collaborators: fjcstudio

Undertook a heritage peer review of the Burwood North Metro Rezoning Proposal which was released on public exhibition by the Department of Planning, Housing and Infrastructure in March 2026. 

Provided site-specific critique and recommendations regarding proposed land zoning and density (heights and FSR) in relation to listed heritage items and conservation areas, how bulk/scale/setbacks, visual settings and transitions could be improved, and the need for strategic reassessment of heritage items. 

Client: Canada Bay Council 

Collaborators: GroupGSA 

Prepared a Statement of Heritage Impact in relation Werrington Park House (also known as Frogmore House) to accompany a rezoning proposal to amend the Penrith Local Environmental Plan 2010 to enable the redevelopment of Western Sydney University’s Werrington campus.

The WSU Werrington rezoning is being assessed by the NSW Department of Planning, Housing and Infrastructure as a State-Assessed Rezoning Proposal.  

Client: Stockland Development

Collaborators: Colliers Urban Planning, Hassell Studio, Place Design Group

Objection to the proposal to list the subject property as a local heritage item as part of the Planning Proposal that sought to implement the recommendations of the Community Heritage Study adopted by Wingecarribee Shire Council. 

Provided in-depth critique of the assessment of significance (not per Heritage NSW guidelines, no comparative assessment undertaken, significance threshold tests not applied), identified errors and deficiencies in the content and methodology, and provided corrected and more detailed information for Council’s and the NSW Department of Planning, Housing and Infrastructure’s consideration.  

Client: Property owner

Provided heritage advice in relation to the potential for subdivision and development of the subject property, which is proposed to be listed as a local heritage item. 

This advice included discussion of the implications of proposed heritage listing, the need for appropriate heritage curtilage identification and the preparation of high-level heritage principles to be considered when determining the potential for subdivision and development of the lot.  

Client: Carlton Real Estate