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★ Certified Series · NCC Class 1a

A certified granny flat,
without the build headaches.

NCC Class 1a homes engineered for Brisbane and SEQ blocks. 20ft 2-bed from $75k or 40ft 4-bed from $99k — one supplier from home to handover.

Check my block → See pricing
🏛️ RPEQ structural engineering ⭐ 7-star NatHERS 🪟 AS 2047 glazing 🚿 WaterMark plumbing ⚡ SAA electrical
Certified Series at a glance
20ft · ~40 m²
2 bed · 1 bath · from $75,000
40ft · ~70 m²
4 bed · 2 bath · laundry · from $99,000
7-star NatHERS
Energy rated, Climate Zone 2 (Brisbane)
N3 wind certified
RPEQ Form 15, 1.5 kPa floor load
5–7 months
Typical start-to-move-in timeline
Who it's for

A certified second home on your block

Class 1a approval means it's a real house — on titled land, eligible for finance, approved by council.

🏠

Rental income

A four-bedroom, two-bathroom home with laundry, approved on your existing lot. Rent it out and let it pay for itself.

👨‍👩‍👧

Family close by

Parents moving in, adult kids needing space, or a multi-generational setup — fully independent, right next door.

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Add value to your property

A certified secondary dwelling on your lot increases the usable area and potentially the market value of your block.

The Model

40ft Certified Series

A single model, built to NCC Class 1a, sized to maximise liveability on a standard Brisbane block.

Size11.15 m × 6.78 m × 2.56 m · approx. 70 m²
Bedrooms / Bathrooms4 bed · 2 bath · laundry
Glazing10 × thermal-break Low-E double-glazed windows (AS 2047)
RoofPitched roof — better drainage, improved thermal performance
Flooring4 mm SPC luxury vinyl plank throughout
AccessibilityAccess ramp (DDA-compliant threshold)
StructureSteel frame, N3 wind rating, 1.5 kPa floor load
Energy rating7-star NatHERS (Climate Zone 2)
PlumbingWaterMark certified fittings throughout
ElectricalSAA certified — connected by licensed Australian electrician
40ft Certified Series — 4 bed 2 bath expandable home
Floor plans available in 7 layouts (A–G) to suit different site orientations, entry points and living arrangements. Browse all options →
What's certified

Every document a certifier needs

We prepare the engineering and compliance documentation. You hand it to your private certifier.

🔧

RPEQ Form 15

Structural engineer's certification — N3 wind (AS 4055), 1.5 kPa floor load. Site-specific engineering report included.

⭐

NatHERS 7-star

Energy efficiency assessment to NCC 2022 for Climate Zone 2 (Brisbane and SEQ). Certificate issued by accredited assessor.

🪟

AS 2047 Glazing

Tested and certified aluminium double-glazed windows and sliding doors meeting the Australian Standard.

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WaterMark Plumbing

All internal plumbing fittings carry WaterMark certification. Licensed plumber connects services on-site.

⚡

SAA Electrical

All electrical components are SAA certified. A licensed Australian electrician completes the connection and issues a compliance certificate.

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Building certifier package

Architectural drawings, engineering reports, energy assessment and specification — formatted for your certifier's application.

📋 Engineering documentation is available to your private building certifier. Approval depends on your block, lot size and council planning rules — we'll tell you upfront if there's anything to look out for.
Pricing

What it costs — no surprises

Three clear options — choose the size and service level that suits your block. All prices are indicative; we give you a written breakdown before you commit.

20ft Certified

from $75,000

Compact 2-bed home with full NCC Class 1a compliance docs. You engage your own builder for site work.

  • 20ft home — NCC Class 1a spec
  • 2 bed · 1 bath · ~40 m²
  • Sea freight CIF Brisbane + delivery to site
  • RPEQ Form 15 structural engineering
  • NatHERS 7-star energy rating certificate
  • AS 2047 glazing & WaterMark plumbing docs
  • Full engineering drawing set for council/certifier
Get a quote
Most popular

40ft Certified

from $99,000

Full-size 4-bed home with complete compliance docs. You engage your own builder for site work.

  • 40ft home — NCC Class 1a spec
  • 4 bed · 2 bath · laundry (or 3-bed config)
  • Sea freight CIF Brisbane + delivery to site
  • RPEQ Form 15 structural engineering
  • NatHERS 7-star energy rating certificate
  • AS 2047 glazing & WaterMark plumbing docs
  • Full engineering drawing set for council/certifier
Get a quote
SEQ only

Turnkey

from $125,000

Everything managed end to end. We handle home, compliance and builder.

  • Everything in 40ft Certified
  • Site preparation & footings
  • Service connections (QBCC licensed builder)
  • Final inspection & handover
  • Builder warranty insurance
Get a quote
Factory-built off site, so most of the work is done before it arrives. That means less time on site, fewer trades, and a fixed price for the home itself.
Every block is different. We give you a written cost breakdown for your site before you commit.
Real example

A recent Brisbane project — 4 bed, 2 bath, laundry

Cost estimate prepared September 2026. Your price will vary based on your block, soil type, access and service connections.

Home & shipping (premium 4-bed, 2-bath, laundry spec) ~$62,000
Engineering, NatHERS, certification & plumbing approval ~$9,400
Duty, port, delivery & crane ~$10,700
Project management & contingency ~$17,000
Builder: site prep, footings, connections & warranty insurance ~$30,000
All-in estimate ~$129,000

A guide only, from an estimate prepared in September 2026. Your price depends on your block, soil, access and service connections.

How it works

From enquiry to move-in

Six steps — we manage most of them.

1

Check your block

Tell us your suburb, lot size and what you need the dwelling for. We'll flag any zoning issues upfront, before you spend a dollar.

~ 1–2 days
2

Choose your model

Select size, floor plan and finishes using our configure page. We confirm what's feasible for your site.

~ 1 week
3

Engineering & design

We commission site-specific structural drawings and an RPEQ Form 15. Your certifier gets a complete package.

~ 3–4 weeks
4

NatHERS & building approval

Energy assessment and building certifier review. Private certification is typically faster than a council DA.

~ 2–4 weeks
5

Production & shipping

40–50 days factory production in Australia spec, then ~35 days sea freight. Port clearance handled by our customs broker.

~ 10–12 weeks
6

Delivery & installation

Crane delivery to site. Our QBCC-licensed builder handles footings, service connections and site fit-out. Final inspection and handover.

~ 2–4 weeks on site
⏱️ Total timeline: allow around 5–7 months from enquiry to move-in. Every block is different — your certifier and council rules affect the approval step.
Coming soon

Follow our first Brisbane Certified build

We'll be documenting the complete build — site prep, delivery day, installation and handover — for the first Certified Series home in Brisbane. Register below to be notified when it goes live.

Register your interest →
FAQ

Common questions

Do I need council approval?+
Yes — a Certified Series home is a permanent, council-approved secondary dwelling. We prepare the engineering and compliance documents; your private building certifier processes the application. Approval depends on your lot size, zoning and council rules. We'll tell you upfront if there are any site-specific issues.
Can I finance it through a home loan?+
It's a permanent, certified dwelling on titled land — the same classification as a traditionally built home. That makes it eligible for construction finance. Talk to your lender or broker about the best structure for your situation — we can provide specs and documentation to support your application.
How long does the whole process take?+
Allow around 5–7 months from enquiry to move-in. Engineering and building approval takes 5–8 weeks. Factory production is 40–50 days, sea freight ~35 days. Site installation and connections by our licensed builder takes 2–4 weeks on site. Every block is different — approval timelines vary.
What does the QBCC builder do?+
Our QBCC-licensed partner builder handles site preparation, footings, crane day logistics, and connecting power, water and sewer. They're on site for 2–4 weeks and issue all required compliance certificates. You can use your own QBCC-licensed builder if you prefer — we'll brief them on the installation requirements.
Can I use my own builder?+
Yes. We can introduce our partner builder or work with yours — as long as they hold a current QBCC licence for residential construction work. We'll provide your builder with the full installation manual and engineering drawings.
What's included in the price?+
We give you a full written breakdown for your site. It covers the home and shipping, engineering, NatHERS, building certification, import duty, port clearance, delivery and crane. Site preparation, footings and service connections are done by a QBCC-licensed builder — included in our Turnkey tier, or quoted separately if you use your own builder.
Is plumbing and electrical certified?+
Yes. All Certified Series homes come with WaterMark certified plumbing fittings and SAA certified electrical components. A licensed Australian plumber and electrician connect services on arrival and issue compliance certificates.
Check my block

Tell us about your site — we'll tell you what's possible

Before you commit to anything, we give you an honest assessment: whether your block suits a Certified Series home, any zoning or lot-size flags, and a written cost breakdown for your site.

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Waterford, Brisbane QLD
Display home arriving soon — register below to be notified
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0405 274 801
Monday – Friday, 8am – 5pm AEST
✉️
info@notsotinyhomes.com.au
We respond within one business day
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