A single-story light steel granny flat is a small, detached residential unit built using a light steel frame system, typically serving as an extension of the main house. It can be used as a granny flat for seniors, as a guest room, rental property, independent space for teenagers, backyard office, or holiday cottage.
This type of construction is popular in Australia, New Zealand, the United States, and other countries due to its rapid assembly, durable structure, controllable cost, and high mobility.
Our single-story light steel granny flat is a modern, durable, and cost-efficient living unit designed using high-strength light gauge steel. With a modular structure and factory-prefabricated components, this compact home offers fast installation, excellent thermal performance, and long-term structural stability. It is an ideal solution for homeowners, developers, and contractors seeking a flexible and affordable backyard living space.
This single-level unit can be customized with different layouts, including studio,one-bedroom,or two-bedroom options. Whether used as an elderly living space, guest house, rental unit, or home office, the light steel granny flat provides maximum comfort, safety, and practicality while ensuring minimal construction time and maintenance requirements.
High-Strength Light Gauge Steel Frame
Manufactured with G550/G350 galvanized or galvalume steel
Strong, lightweight, and corrosion-resistant
Excellent performance in wind, snow, and earthquake zones
Fast Installation, Lower Labor Cost
Up to 90% prefabricated in the factory
On-site assembly completed in2-6 weeks
Reduced construction cost and minimal disruption to your property
Energy-Efficient Building System
Wall and roof insulated with glass wool, PU foam, or rock wool
Superior thermal and acoustic performance
Optional double-glazed windows
Flexible Layout & Custom Design
Studio /1-bedroom / 2-bedroom layouts available
Customizable roof styles, exterior cladding, colors, and interior finishes
Configurable electrical, plumbing, and bathroom/kitchen units
Long Lifespan & Low Maintenance
Light steel structure ensures a service life of over 50 years
Rust-proof, termite-proof, and weather-resistant materials
Minimal repairs required throughout usage
International Flat-Pack Shipping
Panelized and modular designs suitable for container loading
Lower freight cost and easy overseas transportation
|
Category |
Details |
|
Structure |
Light Gauge Steel Frame |
|
Floor Area |
20–80 m² (customizable) |
|
Building Height |
Single story |
|
Exterior Walls |
Sandwich panels / Fiber cement boards / Metal cladding |
|
Roof |
Metal roof / Asphalt shingles / Tile roof |
|
Insulation |
Glass wool / Rock wool / PU foam |
|
Windows |
Aluminum or PVC, single or double glazed |
|
Interior Finish |
Gypsum board + paint or PVC panels |
|
Electrical & Plumbing |
Pre-installed as required |
|
Installation Time |
2–6 weeks |
Elderly living unit(Granny Flat)
Backyard guest house
Home office or private studio
Rental accommodation (Airbnb / long-term rental)
Worker accommodation
Holiday cabin
Teen retreat or independent living space
√Experienced Manufacturer
Years of experience in light steel construction and global project delivery.
√One-Stop Service
Design, engineering,manufacturing, packaging, and installation support included.
√Global Export Capability
Supply to Australia, New Zealand,USA,Canada, Europe, Southeast Asia and more.
√Competitive Factory Pricing
Direct manufacturing ensures the best price without middlemen.
√ Custom Engineering Support
We provide full design customization based on your budget and project requirements.
