Retaining Walls in Gosford
Building a retaining wall in Gosford or West Gosford? Central Coast Council's guide, Building over or near Council sewer and water mains (June 2014, former Gosford City Council), says backyard sewer mains can be as shallow as 450 mm, so check the main's depth and location with Council before you reduce ground levels.
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Retaining Walls around Gosford
If your block slopes away from the street, the guide says the sewer main is likely toward the back of the property. A small wall under 1 metre high, built clear of a sewer main, usually needs no extra foundation support.
Council also runs vacuum sewer systems at West Gosford, St Huberts Island and Davistown, which its guide flags separately. The guide is dated June 2014 and names the former Gosford City Council, so read Council's current page before you rely on a distance.
Permits and Central Coast Council rules
A wall that is not exempt or complying development needs a development application to Central Coast Council. Exempt means no more than 600 mm high and clear of boundaries, easements, sewer and water mains, so check the lines on the main retaining walls page and confirm with Council before work starts.
Source: Central Coast Council, Exempt and Complying Development and Development Applications; State Environmental Planning Policy (Exempt and Complying Development Codes) 2008 (NSW) cl 2.29 and 2.30; read 27 September 2026. — confirm current requirements with Central Coast Council.
Our Gosford service area
An enquiry from Gosford is passed on to an independent local provider, who gets in touch to look at the job.
See all Retaining Walls in Gosford and across the Central Coast. We also work in East Gosford, Erina and Green Point, among the other suburbs we list. Related pages: retaining walls, drainage and mains and replacing a wall.
Call (02) 4326 8289Last reviewed · Updated · First published