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Expandable granny flat solutions for rental yield and family living

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© 2026 GFK Homes — Granny Flat Kits AU. Backed by LINKUP AI PropTech Group.

THE EXPANDABLE CABIN
(HEAVY-DUTY SERIES)

Unfolds in 2 hours. Fully Self-Contained. Zero hassle.

Base Shell (No Fittings): Starting From $22,490 AUD (Estimated Landed)

Premium Turn-Key (Kitchen & Bath): Starting From $31,490 AUD (Estimated Landed)

🇦🇺 Australian Granny Flat Regulations: Most states allow secondary dwellings up to 60 m² under complying development (CDC) without a full DA. Our 20ft (36 m²) and 30ft (57 m²) models fit within this limit. The 40ft (76+ m²) model requires DA approval or is designed for international markets.

🏠 20ft ExpandableCollapsed: 5800 × 2200 × 2480 mmExpanded: 5850 × 6300 × 2480 mm36 m²
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Shell
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Layout
3
Upgrades
4
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Choose Your Exterior Shell

Select the exterior style for your 20ft expandable granny flat.

Estimated Total (AUD)

Total (AUD)

$22,490

Factory-direct base price · delivery varies by postcode

Unsure which portable package fits your scenario?

Use our expandable and portable landing guide to run a quick fit check before finalizing your configuration choices.

Open portable fit checker