ONCE BUILT

Bespoke Building Firm

We provide a tailored service based on the needs of the client. No job is too big or too small. We are a small team providing a hands-on approach, servicing New South Wales.

From Vision to Handover

At Once Built, we take the hassle out of building by creating beautiful, high-quality modular dwellings tailored to your lifestyle. By doing most of the heavy lifting off-site before finishing the job on your property, we skip the usual months of messy construction, noise, and delays. Our expert team handles everything from the first chat to the final handover, ensuring a smooth process throughout. We don't just drop a prefabricated box in your backyard; we build permanent, top-tier modular dwellings that look and feels like they were always meant to be there.

✓ One bedroom floorplans

✓ Two bedroom floorplans

✓ Home extensions

✓ Custom projects

Contact Us
A semi-truck driving on a rural road in a countryside landscape with trees and rolling hills.
A modular dwelling with large glass sliding doors and pitched roof, set in a natural outdoor environment with trees and plants. 1 bedroom dwelling, granny flat, office, 2 bedroom dwelling, accommodation, AirBNB, cabin

One bedroom floorplans

Provides the perfect balance of privacy and independence, offering a fully self-contained modular dwelling that maximizes comfort within a compact, low-maintenance footprint.

Modular dwelling in New South Wales with large glass windows and deck. 1 bedroom dwelling, granny flat, office, 2 bedroom dwelling, accommodation, AirBNB, cabin

Two bedroom floorplans

Provides a versatile and spacious layout, delivering the extra room needed for a guest suite, a dedicated workspace, or comfortable shared living within a premium modular dwelling that maintains a compact and efficient footprint.

A 3D architectural floor plan of a house, showing walls, windows, and door placements on a grid with measurements. 1 bedroom dwelling, granny flat, office, 2 bedroom dwelling, accommodation, AirBNB, cabin

Home extensions

Premium modular dwellings seamlessly bridge the gap between your current property and your future needs, adding significant value and personalized living space without the hassle of moving.

A small, gray house with vertical siding and a metal roof, situated on a wooden deck in a suburban yard with plants and flowers. 1 bedroom dwelling, granny flat, office, 2 bedroom dwelling, accommodation, AirBNB, cabin

Custom projects

Custom projects seamlessly transform your unique vision in to reality, allowing you to design a modular dwelling tailored entirely to your goals. Whether you want to generate income with an Airbnb, build an extra bedroom for family, create a private workspace, or launch a commercial project, you have total control over every detail. Match your exact lifestyle and property needs perfectly within our 6m x 10m (60m²) footprint.

Our 10-step building process

  • Discuss your vision and site potential with our experts.

  • Build an layout that suits you project.

  • Choose your custom cladding, flooring, and interior finishes.

  • Receive a transparent cost estimate based on your design.

  • Sign your agreement and deposit to secure your build slot.

  • We manage all council applications and required approvals.

  • We secure the final certificates needed to start production.

  • Your modular dwelling is precision-built in our controlled site.

  • We transport and install your modular dwelling in NSW.

  • Quality checks are finished—the keys are 10 officially yours!