Built from one wall
A wall that won't rot, won't burn, and won't breathe formaldehyde into the room.
Every DEVPRO home starts with the same wall: a magnesium-sulphate (MgSO₄) structural panel, locally manufactured, that does the quiet work a home is judged on twenty years in. The mineral skin is inorganic — it does not feed rot, mould or termites the way timber does, and it carries no formaldehyde to off-gas into the air you breathe. Bonded to an insulating core, the same panel is what lets a DEVPRO home hit its thermal and airtightness numbers without bolt-on upgrades. It is the part of the house you never see and never think about — which is the point. Long after the paint colour and the kitchen tapware have dated, the wall is still flat, still dry, still doing its job.
- Formaldehyde-free structural wall system
- Non-combustible MgSO₄ board
- Resists rot, moisture, mould and termites
- Airtight to 3 ACH50, blower-door verified on every build
- 15-year DEVPRO panel structural warranty
- Walls
- R3.83
- Roof
- R5.90
- Floor
- R4.61
And this is the 4-bed — 122 m², built from exactly this wall.
Devpro 4-Bed — 122m²
Family-scale without ballooning running costs. Four bedrooms + two living zones, all inside the DEVPRO envelope for Homestar 6-plus energy performance.
from $499,999 turnkey
4 bedrooms · 122 m² · 122 m² footprint
Every side
See it from every side.
Symmetric gable · 10°. Vertical Colorsteel corrugate, powdercoated double glazing, delivered whole and set on piles — the four faces exactly as consented.
Indicative — drawn from the approved building-consent elevations (Mason Street Architectural, WDC BC 2500094). Cladding colour is selectable; final materials and dimensions per working drawings.
To scale
What 122 m² actually is.
The 4-bed against the rest of the range and a doubles tennis court — same scale, honest geometry.
Bedrooms
4
Floor area
122 m²
Footprint
122 m² (single storey)
Turnkey price
from $499,999
Fits sections from
550 m² (subject to setbacks)
On a section
How it sits on the minimum section.
Indicative only — setbacks vary by zone and council, and the shape of the parcel matters as much as its size. Every listing on this site shows whether the 4-bed fits its coverage-limited footprint, and we confirm what actually fits in a feasibility chat.
Browse sections with plan-fit shown →Every Devpro plan comes with
- — Homestar 6 minimum (Homestar 10 achievable at higher spec)
- — Airtight construction — 3 ACH50, blower-door verified on every build
- — Formaldehyde-free structural wall system
- — Energy recovery ventilation (ERV) standard
- — Passive-solar oriented to the section
- — Built on Passive House principles
- — Master Build 10-year Guarantee with Deposit Insurance, plus a 15-year DEVPRO panel structural warranty
Performance, measured
The numbers behind the warmth.
Walls
R3.83
Typical timber frame, batt insulation — R2.0
Roof
R5.90
Floor
R4.61
3 ACH50
airtightness, blower-door verified on every build — 2–3× tighter than a typical NZ new build.
Pair it with land
The 4-bed, with land on the market today.
The cheapest live sections this plan fits — real addresses, real totals.
Kawakawa · Far North
10 Doel Road
Land $85,000
+ 4-bed build from $499,999
Your home from $584,999
See the section →
Karikari Peninsula · Far North
38 Akeake Crescent, Karikari Peninsula
Land $88,000
+ 4-bed build from $499,999
Your home from $587,999
See the section →
Karikari Peninsula · Far North
22 Lindsey Way, Karikari Peninsula
Land $90,000
+ 4-bed build from $499,999
Your home from $589,999
See the section →
Indicative turnkey totals — land asking price plus the 4-bed build. Excludes site works (earthworks, services connections, driveway), consents and finance. Confirm a fixed price with us.
Backed, not promised
What stands behind the build.
Master Build 10-Year Guarantee
Included on every DEVPRO build, with Deposit Insurance.
15-year DEVPRO panel structural warranty
On the MgSO₄ SIP panel structure, alongside the build guarantee.
Blower-door verified, every build
A blower-door test verifies the 3 ACH50 airtightness at completion.
CodeMark / BRANZ appraisal
Or Alternative Solution compliance pathway.
STEP 01
Discovery & Feasibility
1–2 weeks
We confirm your site works, what you can build, and a clear fixed-price path.
STEP 02
Design & Documentation
6–10 weeks
Your home designed and drawn to consent-ready plans, tailored to your brief.
STEP 03
Consent & Pre-Manufacturing
4–10 weeks
Building consent lodged while your DEVPRO panels are scheduled for fabrication.
STEP 04
Construction & Testing
16–24 weeks
Built on site and independently blower-door tested for airtightness.
STEP 05
Handover & Aftercare
1–2 weeks
Keys, a full walkthrough, and ongoing support — backed by the Master Build 10-Year Guarantee with Deposit Insurance.
About the 4-bed
- How much does the Devpro 4-Bed — 122m² cost?
- The Devpro 4-Bed — 122m² is priced from $499,999 as a turnkey build — meaning the price includes the build, not the section. Section cost varies by district and suburb; browse Northland sections to find a fit.
- What size section does the Devpro 4-Bed — 122m² need?
- The Devpro 4-Bed — 122m² has a 122 m² ground-floor footprint. After council setbacks (side/rear/front yards) and coverage limits, the minimum practical section size is around 610 m². Smaller sections are possible with higher-density zoning.
- Is the Devpro 4-Bed — 122m² Homestar-rated?
- Yes — every DEVPRO plan targets Homestar 6 minimum (Homestar 10 achievable at higher spec). The DEVPRO MgSO₄ SIP panel envelope hits the thermal and airtightness numbers required without bolt-on upgrades. A blower-door test verifies airtightness at completion.
Ready to put a 4-bed on a section?
Thirty minutes with Matt: whether your section (or shortlist) fits, and a clear fixed-price path.