Service 02

Duplex Builds

CETA Projects delivers design-led duplex builds across Sydney, working with homeowners, developers and designers to create well-resolved dual-occupancy outcomes. We manage the build with a structured process, clear scope, and disciplined site delivery.

Well-resolved planning outcomes

We support a clean pathway through design development and approvals, considering setbacks, privacy, parking and site constraints.

Disciplined construction management

Sequenced trades, clear site standards and proactive coordination keep progress steady across both dwellings.

Refined finishes and detailing

Consistent workmanship and finish coordination to deliver a premium result that holds long-term value.

1

Feasibility + early guidance

We review your site and goals, then provide a practical pathway for scope, budget range and timing.

2

Design + approvals

Collaborate with your designer/architect (or our partner design team) and progress planning approvals.

3

Detailed pricing

Finalise documentation, finishes and subcontractor pricing to confirm scope and contract.

4

Build + handover

We manage construction with regular updates, quality checks and structured completion across both dwellings.

Considering a duplex in Sydney? Share your suburb and a short brief. We’ll advise on feasibility, build approach and the next step.

Start an Enquiry View Our Process

Can you work with my architect or designer?

Yes — we regularly collaborate with external designers and architects, or we can introduce you to our partner design team.

Do you help during the planning stage?

We can provide early feasibility guidance and cost alignment, helping ensure the design is buildable and budget-appropriate before construction.

What areas do you build in?

Greater Sydney and surrounding regions including the Blue Mountains, Southern Highlands and Illawarra (project dependent).