Belrose House
Modular Design, Built For Modern Living
Site Specific Home & Lifestyle
Mountain House was designed as a calm and connected retreat, a home immersed in nature, light, and privacy.
Surrounded by bushland and distant escarpment views of Katoomba, the architecture responds carefully to the landscape, creating spaces that feel warm, grounded, and deeply liveable. Every window frames the environment differently. Every space feels connected to the outdoors.
But beyond the aesthetics, Mountain House also represents something bigger.
A smarter approach to building homes in Australia.
“In the space of one week, we went from a dirt site to a full frame up in the air for a custom house of this size. That’s unheard of.”
Caleb O’Neill - Master Builder - Katoomba
A Flexible Building System for Better Designed Homes.
What makes Mountain House special is not just how quickly it was built, but how it feels to live within.
The home embraces a slower, more intentional way of living, connected to nature, natural light, and the rhythm of the mountains.
Spaces open toward the landscape while still maintaining a sense of retreat and privacy. The architecture feels calm rather than excessive. Refined rather than overbuilt.
This is architecture designed around lifestyle, not mass produced housing.
“What we've enjoyed is the advantages of prefabrication, enabling us to control the costs, but it doesn't limit the ability of being creative & providing quality of life for people”
Eric Lee - Architect
The Future for Housing
Australia urgently needs new housing solutions. But faster housing should not mean poorer design outcomes or generic project homes disconnected from place and people.
Rapid Build offers a different path.
A building system that is:
Faster and more efficient
Architecturally flexible
Adaptable to different sites and budgets
More predictable and cost-effective
Built around quality of life
Mountain House demonstrates what becomes possible when architecture, innovation, and smarter construction work together.
A home built faster , but designed to be lived in for decades.
Built for Simpler Living Without Compromise
As housing costs continue to rise, many Australians are rethinking how they want to live. Smaller footprints, lower maintenance, stronger connection to place, and more meaningful design are becoming increasingly important.
Mountain House reflects this shift.
It proves that efficient construction and thoughtful architecture do not need to exist at opposite ends of the conversation.
Designed by architect Eric Lee and delivered through the Rapid Build system developed by Sean Coddington, the project combines architectural freedom with a more intelligent construction methodology.
The result is a home that feels highly individual, while also being practical, efficient, and achievable.
Why Choose Rapid Build?
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Every home we create is customised to reflect its environment, offering both design flexibility and high-end finishes.
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We use cutting-edge techniques to minimise environmental impact while maintaining an unparalleled level of quality.
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Our modular sections are engineered to exacting standards, ensuring each home fits together perfectly with minimal waste.
Your Questions Answered.
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Rapid Build is an innovative construction system developed by Sean Coddington that uses prefabricated structural components, including floor cassettes, wall frames, and roof sections, to build homes faster, smarter, and more efficiently.
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Yes. One of the key goals of Rapid Build is to support architectural creativity, not restrict it. Architects can design around site, orientation, lifestyle, and environment while working within a smarter structural framework.
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Not in the traditional sense. Rapid Build is not about delivering generic “cookie cutter” homes. It’s a flexible construction methodology that allows architects to create highly customised, site-specific designs while benefiting from the efficiencies of prefabrication.
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In a word YES!
Because building in this way creates better cost predictability and construction efficiency by reducing labour time, delays, and waste.
Costs still vary depending on design complexity, site conditions, and finishes, but the system is designed to improve overall value and build efficiency.
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No. Rapid Build is designed to improve precision, consistency, and quality control. Off-site manufacturing allows for more accurate construction while reducing weather delays and on-site inefficiencies.
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It’s hard to give a number, because construction methods vary but Build times are significantly reduced because major structural components are manufactured off-site and assembled quickly on location. At Mountain House, the structural frame for the custom home was erected in just one week.
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Yes. Rapid Build is ideal for family living because the modular system allows homes to be designed in stages, if needed.So its possible to expand and adapt the home as your family grows and lifestyle needs change over time.
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Absolutely. Rapid Build is well suited to people looking to simplify their lifestyle without sacrificing architectural quality or comfort. Many downsizers are seeking smaller, lower-maintenance homes that still feel warm, spacious, and connected to their environment, something the Rapid Build approach is designed to support.
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Yes. The system is particularly well suited to challenging or site-responsive projects, including steep, bushland, and architecturally complex sites like Mountain House in Katoomba.
Not Cookie Cutter Prefabrication
Prefabrication often carries the perception of repetitive or standardised housing. Mountain House challenges that idea entirely.
Rapid Build was created to support architects, not restrict them. The system allows homes to be designed specifically for their site, environment, and owners, while using prefabricated structural components to improve speed, precision, and cost control.
Floor cassettes, wall frames, and roof sections are manufactured off-site and craned into place with remarkable efficiency.
At Mountain House, the structural frame for the custom-designed home was erected in just one week.
Fast construction. No compromise on design.