Duplex Design & Drafting | Plans & Approvals
Your Sydney Dual-occupancy (Duplex) Design and Approval Service
If you’re planning a duplex (dual-occupancy) development, working with an experienced drafter or architect ensures your project is compliant, efficient and maximises your site’s potential.
At Archiroom, we specialise in duplex and dual occupancy developments across Sydney and the Inner West.
We help homeowners, investors and developers create practical, well-designed duplex homes that meet council requirements and deliver long-term value.
From initial feasibility through to development application and construction documentation, we guide you through every step.
Duplex Projects in Sydney & NSW
FAQs when planning a Duplex in NSW
A duplex is a residential development where two dwellings are built on one lot, either attached or detached. Duplex projects are a popular way to:
Increase property value
Create an additional income stream
Subdivide land into separate titles
Maximise the potential of your site
Chck out our article "How to assess a property's development potential in Sydney"
We provide complete architectural and drafting services for duplex developments, including:
Site analysis and feasibility
Concept duplex design
Development application (DA) drawings
Council submission and approvals
Construction documentation
Coordination with consultants
As experienced Sydney architects for duplex projects, we prepare detailed, council-ready plans that improve approval outcomes and minimise revisions.
We manage:
Development application drawings
Planning compliance
Council submission documentation
Consultant coordination
Experienced Sydney duplex architects
Council-compliant architectural documentation
Practical, buildable designs
Clear and efficient process
Local knowledge of Sydney planning controls
We help simplify the duplex development process from concept to approval.
Ready to see what's possible on your site?
Just reach out, and we can help you get your project started.
