Geotechnical Risk Property Enquiry
The information provided on this web site is to allow customers to determine if a specific property is land identified on Council's Geotechnical Risk Management Map or on Council's Coastal Hazard Map (Bluff Management Area).
The information available from Council is based on mapping referred to in the Geotechnical Risk Management Policy for Pittwater 2009.
A Geotechnical Report is required to be submitted on lodgement of a Development Application or where an application for a Building Certificate is lodged for all lands located in Geotechnical Hazard Zones H1 and H2, including where H1 or H2 Zones clip the property. A Geotechnical Report is also required to be lodged for a property located in the Bluff Management Area.
Property owners and applicants may need to have a geotechnical assessment carried out by an engineering geologist or a geotechnical engineer specialising in landslide risk management.
A Geotechnical Report is required for development on all land within the Pittwater LGA at the Construction Certificate Stage for Excavation and Landfill activities as follows:
- excavations greater than 1 metre deep, the edge of which is closer to the site boundary or a structure to be retained on the site, than the overall depth of the excavation and/or
- any excavation greater than 1.5 metres deep below the existing surface and/or
- any excavation that has the potential to destabilize a tree capable of collapsing in a way that any part of the tree could fall onto adjoining structures (proposed or existing) or adjoining property and/or
- any fill greater than 1.0 metre and/or
- any works that may be affected by geotechnical processes or which may impact on geotechnical processes including but not limited to construction on sites with low bearing capacity soils.