Architectural Design & Drafting Services Across Western Sydney

Trinity Design & Planning provides a complete suite of architectural design, drafting and approval services for residential and small commercial projects.

We deliver clear, compliant and build-ready plans for fast approvals and smoother construction.

Design Services

Custom Home Design

Personalised designs shaped around your lifestyle, land and vision.
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Granny Flat Design

Fast, accurate planning with BASIX and approval documents included.
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New Home Architectural Plans

Fully detailed plans tailored for
DA or CDC pathways.
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Duplex & Dual Occupancy Design

Efficient layouts and yield optimisation with full documentation.
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Townhouse & Multi-Residential Design

Compliant, scalable designs for multi-unit developments.
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Drafting Services

Floor Plan Drafting

Accurate, millimetre-perfect measured drawings.
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Site Plans, Elevations & Sections

Complete documentation for DA, CDC or construction.
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3D Concept Modelling

Visualise your project before committing to construction.
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Construction Drawings

Builder-friendly details, schedules and specifications.
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Approval Services
(DA & CDC) and Compliance

DA Documentation Package

SEE Report, BASIX, waste plan, landscape plan, shadow diagrams and more.
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CDC Documentation Package

Fast-track approvals for eligible developments.
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BASIX Certificates

Prove your development to meet NSW sustainability standards.
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Stormwater Concept Plans

Early- stage stormwater documentation for DA/CDC readiness.
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Waste Management Plans (WMP)

Council-compliant WMPs for residential and commercial projects.
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Statement of Environmental Effects (SEE)

Required for most DA submissions.
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NSW Planning Portal Assistance

We manage your entire DA/CDC submission from start to finish.
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Sydney Water Tap-in

We manage your entire DA/CDC submission from start to finish.
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