Geotechnical engineers for Takapuna & Devonport
Volcanic rock from Lake Pupuke, Waitematā sandstone and a lot of coastline.
Takapuna is our home suburb, and its ground is unusual. Lava from Lake Pupuke flowed east to the coast, so one property can sit on hard basalt while the next is on weathered sandstone or soft fill. That variability matters for basements, piles and anything that needs a deep excavation.
Around Devonport and the harbour edges, coastal hazard overlays and reclaimed land usually drive what an investigation needs to cover.
Ground conditions in Takapuna & Devonport
What we look out for
- Variable depth to basalt, which affects piling and excavation
- Coastal erosion and inundation overlays
- Soft ground and fill on reclaimed edges
- Liquefaction screening on loose coastal sands
Typical projects
- Basements and apartment foundations near Takapuna centre
- Coastal houses with erosion setbacks
- Seawall and coastal retaining advice
Every site is different. Geology maps and council overlays are a starting point; a site-specific investigation confirms what is actually there.
Building in Takapuna & Devonport? 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.
