What Is Duplex Development

Two Homes, One Block, Double the Value

A duplex development is the construction of two separate homes on a single lot, each with its own entrance and living space.

  • Dual rental income generate income from one property.
  • Maximise land value and usage.
  • Reduce costs lower construction and maintenance costs per dwelling.
  • Ideal for investment or multigenerational living.
Our Services

Our Duplex Development Services

Our Process

Why Choose BD Living for Duplex Development

Feasibility & Zoning

We assess your zoning (R20-R60), lot size and frontage before providing a detailed feasibility report.

Design & Planning

Custom duplex house designs tailored to your block, lifestyle and budget.

Approvals

We manage Development Applications, Building Applications and R-Code compliance.

Construction

Licensed and insured duplex builders deliver on time with transparent pricing.

Handover

A profitable, modern duplex ready to sell, rent or live in.

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Contact Us to Get Started with Your Duplex Development

BD Living Pty Ltd is your trusted partner for duplex developments in Perth. Call us or fill out our contact form to book your free consultation.

FAQs

Frequently Asked Questions

Got more questions? Do not hesitate to contact us for any information you require.

Ask a Question
What is the average cost of building a duplex in Perth?

Standard duplex projects range from $500,000 to $700,000, and high-end or double-storey duplexes $800,000+, depending on site slope, materials, finishes and design complexity. We offer free feasibility studies for an accurate, site-specific quote.

Can I build a duplex on my existing property?

Yes. We assess your zoning (R20-R60), check lot size and frontage, review council regulations, and provide a detailed duplex feasibility report.

Do I need council approval to build a duplex?

Yes. We manage the Development Application, Building Application, zoning and R-Code compliance, and subdivision and titling documentation from start to finish.

How long does it take to complete a duplex build in Perth?

On average, a full duplex development takes 12-16 months: design and planning (2-4 months), council approvals (2-3 months), construction (8-12 months), and final inspection and handover (1-2 weeks).

What block size is needed for a duplex?

Minimum block size depends on your zoning code - roughly 900 sqm for R20, 700 sqm for R30, 600 sqm for R40, and 500 sqm or less for R60. We evaluate your property's R-Code and help optimise land use.

Locations

Building Quality Homes Across Perth's Suburbs

Your local Perth home construction company - serving homeowners across the metro and surrounding areas.

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  • Baldivis
  • Canning Vale
  • Claremont
  • Como
  • Duncraig
  • Floreat
  • Forrestfield
  • Hammond Park
  • Harrisdale
  • Nedlands
  • Piara Waters
  • Scarborough
  • South Perth
  • Southern River
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