Three-Bedroom Granny Flat — Granny Flats | Building Solution Australia
Three-Bedroom Granny Flat
Full family accommodation as a secondary dwelling
Concept Plan — this floor plan is for illustrative purposes only. It does not represent an approved design. Subject to design development, engineering, and planning approval.
A three-bedroom secondary dwelling providing full family accommodation on a residential lot. Requires development approval in most jurisdictions. Positioned as a backyard home for extended family, multi-generational living, or family rental investment. No garage — a secondary dwelling designed for the rear of a residential lot.
Key Features
- Three bedrooms — master with ensuite and WIR
- Covered alfresco — outdoor living connection
- Separate private entry from principal dwelling
- DA pathway — Building Solution Australia manages the approval process
- Low maintenance exterior — fibre cement and Colorbond
- Australian compliant design — NCC 2022
- Energy-efficient — 7-star NatHERS minimum
Floor Plan
Concept Plan
Master bedroom with ensuite and WIR, two secondary bedrooms with BIRs, main bathroom, open-plan living/dining/kitchen, separate laundry, covered alfresco. No garage or internal car access. Dimensions indicative only.
Concept Plan — indicative layout only, subject to design development and approval
Concept Plan — indicative layout only, subject to design development and approval
Internal Layout
Master bedroom with ensuite and WIR. Two secondary bedrooms with BIRs. Main bathroom. Open-plan living/dining/kitchen. Separate laundry. Covered alfresco area. No internal garage or car access.
External Design Options
- Fibre cement sheet cladding — painted finish
- Timber-look composite cladding
- Brick veneer — where required by council
- Colorbond steel cladding
Construction Method
LGS framing with factory-prefabricated wall panels, modular bathroom pods, and prefabricated kitchen unit. Site-assembled on concrete slab.
Product Specifications
Standard Finishes
- Painted fibre cement cladding
- Colorbond roof
- Stone benchtops — kitchen and bathrooms
- Ceramic tiles — wet areas
- Carpet — bedrooms
- Hybrid flooring — living areas
- Painted plasterboard — internal walls
Upgrade Packages
Premium Finishes
Engineered timber flooring, semi-frameless shower screens, upgraded tapware, stone benchtops throughout
Alfresco and Landscaping
Extended covered alfresco with timber-look decking, privacy screening, and basic landscaping package
Solar and Battery
6.6kW solar PV system with 10kWh battery storage — grid-connected
Typical Applications
Approval Considerations
Three-bedroom secondary dwellings exceed the complying development size limit in most states and require development approval (DA). Approval depends on lot size, zoning, and council controls. Building Solution Australia can coordinate the DA process as part of the design-and-construct package.
Project Examples
- Three-bedroom secondary dwelling for extended family — Hills District NSW
Important Notice
All floor plans, specifications, and product information are indicative only and subject to change without notice. Concept plans and indicative layouts are for illustrative purposes only and do not represent approved designs. Final designs are subject to design development, structural engineering, services coordination, and planning and building approval. Building Solution Australia does not guarantee that any product can be approved or constructed on any specific site without site-specific assessment. Consult a qualified building professional and your relevant planning authority before making any decisions based on this information.