Granny flat designs sized for Brisbane blocks
Three proven layouts, all within typical Brisbane City Council secondary dwelling size limits. Use them as-is or as a starting point: your builder tailors the design to your block during the free site assessment.
The Fern
The Fern is the smart entry point: one open, light-filled space with defined sleeping and living zones, a kitchenette along the entry wall and a full bathroom with a euro laundry tucked behind the partition wall.
It suits smaller or tighter Brisbane blocks, home offices and consulting rooms, guest accommodation, and owners who want rental income with the lowest possible build cost.
| Size | Approx 45 m² (9.0 m x 5.0 m) |
| Layout | Open-plan living and sleeping, kitchenette, bathroom with euro laundry, built-in robe |
| Best for | Tight blocks, home office or studio, first-time granny flat investors |
| Typical built cost | Roughly $120,000 to $160,000 turnkey, site dependent - see the cost guide |
The Banksia
The Banksia is a genuine small home: a separate bedroom with built-in robe, a full kitchen, open living and dining, and a combined bathroom and laundry. It is the layout most Brisbane homeowners land on, because it works equally well for a parent, an adult child or a long-term tenant.
| Size | Approx 60 m² (10.0 m x 6.0 m) |
| Layout | 1 bedroom with robe, full kitchen, open living and dining, bathroom with laundry |
| Best for | Multigenerational living, steady rental income, downsizing on your own block |
| Typical built cost | Roughly $145,000 to $190,000 turnkey, site dependent - see the cost guide |
The Moreton
The Moreton fits two genuine bedrooms, an ensuite to the main plus a second bathroom with laundry, a full kitchen and open living, all within a footprint that still sits inside typical council size limits. It is the design of choice for families and for owners chasing the strongest rental return per dollar of land used.
| Size | Approx 70 m² (11.6 m x 6.0 m) |
| Layout | 2 bedrooms with robes, ensuite to main, second bathroom with laundry, full kitchen, open living and dining |
| Best for | Families, share-style tenants, maximum rental return |
| Typical built cost | Roughly $170,000 to $250,000+ turnkey, site dependent - see the cost guide |
What a quality turnkey build includes
Builders in our network quote turnkey: a finished, ready-to-live-in home, not a shell. A typical specification covers:
- Engineered slab or steel sub-floor to suit your site
- Frame, roofing, insulation and external cladding
- Kitchen with stone benchtop and appliances
- Full bathroom(s) and internal laundry provision
- Flooring, internal painting and LED lighting throughout
- Split-system air conditioning to living areas
- Electrical, plumbing and connection to existing services
- Building approval and certification management