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Who We Work With

Duplex Building Design specialises in residential development approvals and design for a specific group of clients across NSW, QLD and WA. We don’t try to be everything to everyone — we focus on projects where structure, process and experience matter.

Capital-Backed Residential Developers

We work with capital-backed developer groups delivering multiple residential projects per year.
Our systems, documentation and approval processes are designed for repeatability, speed and certainty across duplex, terrace, townhouse and multi-dwelling projects.

Builder-Developers

We partner with builders stepping into development — delivering buildable, compliant designs that support construction efficiency and protect margin.

Strategic Private Developers

We work with business owners and professionals who want to approach property development strategically, with the right team guiding them from feasibility through to approval.

Lifestyle & Equity Investors

We help owner-occupiers and downsizers unlock the value in their land — whether to reduce debt, eliminate mortgages or downsize intelligently.

DESIGN - DOCUMENT - DELIVER

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