Why GWE for residential projects
Integrated experts under one roof
geotech, water and environmental working as one team so risks are found early and solved once.
De-risked by design
rigorous investigations and evidence-based reporting that support consents, building approvals and long-term performance.
Calm in complexity
we’re known for stepping in when projects stall and clearing the path to delivery.
We make consenting simple
translating regulation into clear, practical solutions that keep your project moving
LIFT values in action
we Listen, Innovate, Follow Through and Team Up to deliver tangible results.
What we deliver for homeowners, project managers & architects
Geotechnical engineering for homes and sites
Site and subsurface investigations, stability and liquefaction assessments, foundation/retaining design, groundwater control and construction monitoring, giving your designer and builder the facts to proceed with confidence.
Onsite stormwater design
Flood risk assessments, hydrologic/hydraulic
modelling and on-site devices (detention, soakage,
quality treatment) with the reports councils expect.
Related read: Stormwater Resource Consents, navigating council rules for residential sites.
Residential wastewater systems
End-to-end support for new builds, renovations, replacements and upgrades, site evaluation, system selection/sizing, design and consent/compliance documentation for reliable long-term performance.
Drinking water for rural & small communities
Source selection, treatment process/plant design, storage/distribution and Water Safety Plans aligned with NZ drinking-water standards.
Environmental & contaminated land
PSI/DSI investigations, risk assessment, remediation/action plans, validation reporting and certification work delivered by SQEP qualified scientists and aligned with the NES for contaminated soil.
How we de‑risk your residential project
Early intelligence
Feasibility scans and targeted investigations (geotech, stormwater, wastewater, contamination) to surface constraints before they cost you.
Essential reporting
Technical assessments that stand up to scrutiny: geotech, flood models, onsite stormwater/wastewater design reports, NES contamination reports and consent documentation.
Consent & compliance
Clear, defensible submissions that streamline resource/building approvals for residential properties.
Follow‑through
Construction observation, close‑out and certification to keep schedules on track.
This approach reflects our LIFT values, we do the hard work so your project doesn’t get harder
Featured residential projects
Coastal cliff-top residence:
a complex geotechnical solution due to property location (at the crest of a coastal cliff) and proposed development including excavation of a deep residential basement, up to two storeys in places.
Stanley Point residence:
large residential development required earthworks covering an area of 2,000 m2 to establish a stable building platform to support the large dwelling, swimming pool and surrounding built amenity and car parking areas.
Karekare Beach residence:
a steep site on sand not typically constituting a viable building site. A suitable foundation system required for the site which included depths of loose sand in the order of 10 m in places. Machine drilled boreholes and detailed slope stability analysis informed foundation and slope stabilization design.
How to engage GWE
Tell us about your site and plans
We’ll outline the likely investigations and approvals path.
Receive a scoped proposal
Tasks, deliverables and timeframes aligned to your risks and budget.
Design, consent, deliver
One team across geotech, water and environmental through to close‑out.