Building Design
DA/CDC Documentation
Sydney & Western Sydney
Clear, accurate plans and approval support for homes, duplexes and developments across Sydney & Western Sydney.
Our Services
Our Residential Design & Drafting Work Across Sydney
Why Clients Choose Us
Fast Reliable DA/CDC Documentation
Clear, buildable plans your builder will appreciate
Local expertise in Western Sydney councils
Sydney’s Trusted
Building Designers
★★★★★
About Trinity Design
& Planning
We’re a Sydney-based building design studio specialising in clear, accurate residential plans that support efficient approvals and smooth construction. We guide you through the entire design and documentation process.
Suburbs We Serve
Fairfield West
Fairfield
Smithfield
Parramatta
Bankstown
Campbelltown
Blacktown
Cabramatta
Liverpool
Inner West Sydney
And surrounding suburbs.