Modular small second homes up to 80m²
Victoria now lets you build a granny flat (small second dwelling) of up to 80m² on most residential and rural lots without a planning permit. Containable Luxury builds NCC Class 1a modular granny flats in our Truganina factory and installs them across Melbourne and regional Victoria — and all three OwnSpace models fit under the new 80m² limit.
Every home is overseen by Bosko Stojanovski, Registered Building Practitioner DB-U 73403, with a 10-year structural warranty and a 7-star energy rating.
Our granny flat range
| Model | Living area | Bedrooms | From | Best for |
|---|---|---|---|---|
| OwnSpace 20 | 42m² | 2 | $45,000 | Parents, adult children, a first rental |
| OwnSpace 30 | 57m² | 2–3 | $65,000 | Larger families, long-term rental income |
| OwnSpace 40 | 73m² | 3 | $85,000 | A full-size second home on a bigger block |
Prices are starting prices. Your written quote confirms exactly what is included for your site, such as foundations, site access and service connections.
Victoria’s granny flat rules in 2026
From 15 October 2026, Amendment VC306 raised the size limit for a small second dwelling from 60m² to 80m². In most cases this means:
- No planning permit on most residential and rural lots with one existing house.
- A building permit is still required. It checks siting, setbacks, design and safety.
- A planning permit is needed if your lot is under 300m² in a residential zone, if certain overlays apply (for example heritage, flooding or bushfire), or if you are in a Green Wedge or Rural Conservation zone.
- Anyone can live there or rent it — family or unrelated tenants. Normal rental laws apply.
- It can’t be subdivided or sold separately from the main house.
Source: Department of Transport and Planning — Small second dwellings. We check your exact block before you commit.
Why a modular granny flat
- Built in a factory, not your backyard. Less noise, fewer trades on site and no weather delays.
- NCC Class 1a permanent dwelling. Architectural plans and engineering documentation for your building surveyor.
- 7-star energy rating. Insulated walls and roof with double-glazed windows for Melbourne’s changeable weather.
- 10-year structural warranty from a registered Victorian builder.
- Deal directly with the builder. No sales agents between you and Bosko.
How it works
- Site check — we review your lot size, zone, overlays, easements and crane access.
- Plans and permits — we supply drawings, engineering and energy-rating details for your building permit.
- Factory build — your granny flat is built at our Truganina facility while your site is prepared.
- Delivery and install — the home is transported, placed on its foundations and connected.
- Handover — final inspection, occupancy and warranty documents.
Granny flats across Melbourne and Victoria
Our display centre is in Truganina, in Melbourne’s west, so we regularly install in Wyndham (Tarneit, Werribee, Point Cook, Hoppers Crossing), Melton and Caroline Springs, Brimbank and Sunbury, and across Melbourne’s suburbs. We also deliver to Geelong, Ballarat, Bendigo, the Mornington Peninsula and regional Victoria.
Granny flat builders in Melbourne
Containable Luxury is a Melbourne granny flat builder and manufacturer, not a reseller. We design, build and install every OwnSpace home ourselves, under a Registered Building Practitioner, so you have one team responsible from site check to handover. Looking for a larger home? See our expandable homes.
Granny flat FAQs
Do I need a planning permit for a granny flat in Melbourne?
Usually not, if it is 80m² or less, your lot is 300m² or more and no overlay requires one. You always need a building permit.
Can I rent out my granny flat?
Yes. Since the small second dwelling rules began, anyone can live in a granny flat, including tenants. It cannot be subdivided or sold separately.
How big can a granny flat be in Victoria?
Up to 80m² of floor area to count as a small second dwelling (60m² before 15 October 2026). The OwnSpace 20 (42m²), 30 (57m²) and 40 (73m²) all fit.
How long does a modular granny flat take?
Factory build and delivery typically take 12–18 weeks after order, plus the time for your building permit. We give you a timeline with your quote.
Can I see one in person?
Yes. Visit our display centre at 13 Gardiner Lane, Truganina VIC 3029, or call 1300 966 361.