
East Auckland · Auckland
Geotechnical engineers for East Auckland
Coastal cliffs, estuary margins and large newer subdivisions.
East Auckland's coastline from Bucklands Beach to Maraetai is lined with sandstone cliffs, and cliff-top properties often need erosion and stability assessments for consent. Inland, the newer suburbs of Flat Bush and Mission Heights were built with large earthworks, so fill history matters.
Ground conditions in East Auckland
East Coast Bays FormationSandstone and siltstone forming the Howick and Bucklands Beach cliffs.
Tauranga Group alluviumSoft soils along the Tāmaki and Pakuranga estuaries.
Auckland Volcanic FieldTuff and basalt around Pigeon Mountain (Ōhuiarangi).
What we look out for
- Coastal cliff erosion
- Soft estuarine soils
- Expansive clays
- Fill on earlier subdivisions in Flat Bush and Botany
Typical projects
- Cliff-top houses and setbacks
- Retaining walls on sloping lots
- Townhouse developments
Every site is different. Geology maps and council overlays are a starting point; a site-specific investigation confirms what is actually there.

Start a project
Building in East Auckland? Send us the site address and we'll tell you what geotechnical input you need.
You get a clear, fixed scope and fee up front. Prefer to talk? Call 09 218 6915 or email info@gibbritchie.co.nz.

