class 1a building ExpandiHome 1a

Expandihome Council Class 1a Model Compliant & Approvable, Settle Easily Across Australia

*Except Tasmania Region as so far

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Class 1a 20/30/40ft and Cyclone rating 40ft

Except TAS region and Cyclone rating up to C3 in wind region.

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What is the ExpandiHome Class 1a Model?

In Australia, any residential construction must obtain approval from the local Council to ensure compliance with regional planning, building safety, and environmental standards.
As the definitinon of Building Code of Australia Volumn 1, A6G2,

(1) A Class 1 building is a dwelling.

(2) Class 1 includes the following sub-classifications:

(a) Class 1a is one or more buildings, which together form a single dwelling including the following:
(i) A detached house.
(ii)One of a group of two or more attached dwellings, each being a building, separated by a fire-resisting wall, including a row house, terrace house, town house or villa unit.

ExpandiHOME Class 1a building can be your primary dwelling as well as secondary dwelling.

What we are offering for class 1a product

Provision, approval and Setup

Cooperating with partners, ExpandiHome is proud to offer our class 1a house, delivery, and provide foundation, setup and professional works by partners.

Architectural drawings of a house with labeled elevations and dimensions. ExpandiHome

Engineering Plan

Engineering sign off for a Form 15 and Form 12 or your councils equivalent to approve the house as a Class 1A rated home.

7 Star Energy Rating and Report

Starting from May 2024, new homes and apartments must achieve a minimum energy efficiency of 7 stars under the Nationwide House Energy Rating Scheme (NatHERS), a change introduced by the 2022 National Construction Code (NCC).

SOIL TEST REPORT

Soil testing is required in Australia for new construction projects, including new homes and some extensions, to comply with the national standard, AS2870.

Houses plan with labeled elevations on a white background ExpandiHome

Engineering plan and foundation plan

Document with 'ExpandiHome' branding on a white background ExpandiHome

Council approval letter

Approval from council

AU Cyclone Ratings as Option

Cyclone rating will be required for region C and we are capable to offer cyclone rating house solution up to C3 in wind region.

Why Choose our Expandihome Council Model?

Compliance with successful experiences
All designs have passed professional Australian building certifications, fully complying with Council approval standards and eliminating the risk of "unapproved construction". Avoid fines, demolition, and other losses caused by non-compliance, and protect your property.
Shorten Approval Cycle,Move In Sooner
Compared with the long process of "repeated design revisions and
supplementary materials" for nonstandardized products, our Council Model can shorten the approval time by more than 50%. Approval can be obtained in 4-8 weeks in most areas, helping you realize your living plan quickly.
Professional TeamSupport, Peace of Mind & Effort-saving
Our team is familiar with Council
approval rules across Australia,
providing full assistance from documentation preparation to communication on issues. You don't need to study complex policy terms by yourself, saving time and energy

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Know more about the process

See below diagram for how we work for your class 1a building.

Talk with our consultant for Approval

Frequently Asked Questions

What's the difference between the standard model and class 1a model?

There are quite a few differences between the two models, for the reason originating from difference of compliancce with NCC and normal caravan. What you may notice is the 1a model has higher 2.4m interior ceiling, pitched roof, thicker wallpanels and PU instead EPS etc. These are part but not all. There are also structural re-engineering with Australian engineers verification for compliance, overall energy ratings and strict requirements from Australian Building Code.

Can I buy a class 1a stock?

Not exactly. As each 1a house is customized with your location and situation, we do not produce stocks ready and each must be customized and produced upon feasibility study passed and engineering preliminary approval.

Have you ever done the class 1a project?

Up to end of Oct 2025, we have been awarded over 10 contracts for class 1a and we are glad to introduce our approval consult talking with you for further verification and clarification if rquired.

Can I apply the First Home Owner Grant with your house?

Though we do not have clients applied FHOG before, but as regulation of the policy, for class 1a house it is permitted to apply. We hope you can be our customer to get the fund and approval in the early phase.

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