
- Size: Customizable
- ExteInstallarior and interior finishes are customized
Built with a high-strength light gauge steel structure, the granny flat offers outstanding durability, thermal insulation, corrosion resistance, and fast installation performance. Compared with traditional construction, modular granny flats significantly reduce labor costs and shorten project timelines.
Features of Light Steel Granny Flat
High-Strength Light Gauge Steel Structure
The main structure uses G550 high-strength galvanized steel framing with excellent structural stability and long service life.
Benefits:
Anti-rust & anti-corrosion
Termite resistant
Fire resistant
Earthquake resistant
Lightweight but high strength
Suitable for Australian climate conditions
Australian light steel framing systems commonly use galvanized steel such as G550 / AZ150 / Z275 materials for structural durability and precision manufacturing.
Fast Installation
The modular structure is prefabricated in the factory and delivered ready for quick onsite assembly.
Installation Advantages:
Reduced construction time
Lower labor costs
Easy transportation
Minimal onsite waste
Suitable for remote areas
Many modular granny flat systems in Australia are designed for rapid assembly using prefabricated wall frames and roof trusses.
Excellent Thermal & Acoustic Insulation
The wall and roof system can be equipped with high-performance insulation materials to improve indoor comfort.
Optional Insulation Materials:
Glass wool insulation
Rock wool insulation
PU sandwich panels
EPS sandwich panels
Modern Australian modular systems emphasize thermal efficiency and acoustic performance for comfortable living environments.
Flexible Layout Customization
The granny flat can be customized according to project requirements.
Available Layouts:
Studio granny flat
1 bedroom granny flat
2 bedroom granny flat
Office & backyard studio
Guest accommodation
Holiday cabin
Farm worker accommodation
Typical Applications
Backyard secondary dwelling
Rental investment unit
Holiday accommodation
Airbnb modular cabin
Farm house
Garden studio
Home office
Staff accommodation
Mining camp housing
Remote site accommodation
Various styles are available for selection.
Wall System
External Wall Options
Fiber cement board
Metal cladding
PU sandwich panel
EPS sandwich panel
Decorative WPC cladding


Internal Wall Options
Gypsum board
Calcium silicate board
PVC wall panel
Typical Australian granny flat wall systems combine steel framing, insulation layers, waterproof membranes, and decorative cladding materials.




Flooring System
Floor Options
SPC flooring
Laminate flooring
Ceramic tiles
Vinyl flooring
Timber flooring

Australian Standard Window System
The window system is designed to meet Australian market requirements and can be customized according to local building standards and project needs.


Full House Customization Supported
SUNRISES HOUSE provides complete customized modular housing solutions according to different market requirements, project applications, and customer preferences.
Customization Options Include:
Floor plan customization
Exterior appearance customization
Interior decoration customization
Window & door system customization
Roofing system customization
Kitchen & bathroom customization
Electrical & plumbing system customization
Insulation material customization
Solar energy system customization


FAQ
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Q: Do you provide complete solutions? A:Yes. SUNRISES HOUSE provides complete modular housing solutions including structure, insulation, doors, windows, electrical systems, bathrooms, and kitchens. |
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Q: Can the layout be customized? A:Yes. Floor plans, wall materials, roofing systems, windows, and interior finishes can all be customized. |
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Q: What is the lifespan of a light steel granny flat? A:The design lifespan can reach 30–70 years depending on material configuration and maintenance. |
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Q: What is a light steel granny flat? A: A light steel granny flat is a prefabricated modular house built with a galvanized light gauge steel frame. It is commonly used as a backyard secondary dwelling, guest house, rental unit, or holiday accommodation in Australia. |
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