Transform your backyard with our durable and customizable granny flats. Perfect for extra living space, rental income, or multigenerational living.
A Granny Flat, also known as an Accessory Dwelling Unit (ADU), is a secondary housing unit on a single-family lot. It can be detached or attached to the main home and is designed for various uses such as housing elderly parents, generating rental income, or providing extra space for guests. Granny Flats are typically self-contained with living areas, kitchens, and bathrooms. They offer a flexible and cost-effective solution for expanding living space without moving. At hbfrmsteel, we specialize in high-quality steel-framed Granny Flats that are durable, energy-efficient, and customizable to meet your specific needs. Whether you're looking for a cozy retreat or a functional studio, our designs blend seamlessly with your existing property.
Type: Depending on the geological conditions and design, strip foundations, raft foundations, or point foundations (such as screw piles) can be used. Lightweight structures (such as light steel) have lower foundation requirements.
Light steel structure: Cold-formed, thin-walled steel sections (C- and U-shaped steel) form the keel, serving as the skeleton for the walls and floor slabs.
Exterior Walls: Typically, OSB (European Pine Board) and moisture-proof breathable paper are installed on the outside of the structural keel, followed by exterior cladding (such as metal carved panels, cement fiberboard, or wood cladding).
Roof: Traditional pitched roof tiles (terracotta tiles, asphalt shingles) or modern iron roofing can be used.
Interior Finishes: Walls are filled with insulation wool, and interior walls are covered with fire-resistant gypsum board, followed by painting or wallpapering. This includes all interior features, including flooring, kitchen cabinets, and bathroom fixtures.
Equipment systems: Heating, ventilation and air conditioning (HVAC), water, electricity, and network systems, whether independent or shared with the main house.
At hbfrmsteel, we offer a diverse range of Granny Flat options, from compact studios to spacious two-bedroom units, catering to various living needs.
Three exterior styles to choose from: modern, traditional, or minimalist; interiors can be designed as open-plan, with lofts, or with outdoor terraces, flexibly matching your lifestyle.
The entire structure features a high-quality steel frame, ensuring durability, termite resistance, and protection against extreme weather, providing long-lasting safety for your home.
You can freely customise the exterior finish colours and materials, and kitchen, bathroom, and other internal configurations can be selected as needed, achieving a true 'move-in ready' experience.
The design focuses on natural light and ventilation, creating a healthy and comfortable living environment; whether it's a tranquil holiday home or a fully-equipped long-term residence, we can collaborate with you.
Factory-prefabricated, high-precision, and fast construction. High strength, excellent earthquake resistance, and termite-resistant, it resists cracking and deformation. Ideal for modern, fast-paced projects, locations with high earthquake resistance requirements, and those seeking industrialized construction.
Integrated insulation and decorative panels offer quick installation, a modern look, rich colors, and excellent durability. With a modern style, they are a perfect match for lightweight steel granny flats and are suitable for projects requiring low maintenance and fast construction.
Fire-resistant and insect-resistant, with strong durability, it can mimic a variety of textures, including wood grain and stone. Suitable for mid- to high-end projects seeking wood or stone-like textures with lower maintenance requirements.
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