01 · DESIGN
Design it
We design your home or building and shape the outdoor spaces around it.
One group of businesses · Tauranga NZ
We help you design, build and certify, end to end.
Wetherill Group is four specialist businesses covering the professional side of construction: the design, engineering and compliance that surround a build. One trusted group from the first concept to the finished build.
02 · FLOW
Flow it
We engineer the water: stormwater and wastewater, plus AI tools that speed up the process.
03 · CERTIFY
Certify it
We handle the council paperwork and compliance, so your build gets signed off without the headache.
01
The four businesses
Each one is a specialist team that does a single thing well. Hire any of them on their own, or let us join them up across your whole project.
Compliance · Certify
C3 Building Compliance
We handle your council paperwork.
Building consent processing and compliance across New Zealand. We get your build approved and signed off.
Visit C3 ↗
Architecture · Design
RD Architecture
We design your home.
Architectural design for homes and light-commercial projects, from first concept to the consent-ready drawings your builder works from.
Visit RD ↗
HydrOSETSTORMWATER · WASTEWATER
Engineering · Flow
HydrOSET
We engineer the water.
Stormwater and on-site wastewater (OSET) engineering. We make sure rain and waste water are managed properly so your site works and passes council.
Visit HydrOSET →
NEXXISAI · AUTOMATION
Technology · Flow
Nexxis
We put AI to work for you.
Practical AI and automation that takes the busywork out of building and professional-services businesses. Faster processing, less admin, fewer errors.
Visit Nexxis ↗
Four businesses. One coordinated group.
Each business has its own team and its own partners. Together, under Wetherill Group, they cover a project end to end, so nothing falls through the gaps between design, engineering and compliance.
Get in touch
Not sure who you need? Start with us.
Tell us about your project and we'll point you to the right business, or manage the whole thing across the group.