Dual Occupancy Specialists Campsie — Licensed Duplex Builder
NSW licensed duplex builder in Campsie 2194. Torrens or strata subdivision, Canterbury-Bankstown Council planning expertise, full contract management for investor-grade builds.
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MBA NSW0476 300 300Quick Answer
A duplex in Campsie costs $750,000–$1,500,000+ for dual occupancy construction. Attached duplex from $750K, detached from $1M. Buildana manages feasibility, Canterbury-Bankstown Council approvals, construction and subdivision under one fixed-price contract.
Dual Occupancy Developments in Campsie
A duplex in Campsie sits in a genuinely strong development market. The suburb carries strong R3 and R4 zoning around the CBD and established residential streets, so beyond a standard R2 duplex on a block clearing Canterbury-Bankstown's 600m² minimum, there is real medium-density potential on the right lot. At a $1.2M to $1.5M median with excellent rail, the yield options are broad.
Where a block clears 600m², a Torrens-title duplex delivers two dwellings with strong resale and rental, and where R3 or R4 applies, townhouses or apartments can beat it on yield. The ground generally behaves, so the slab and footings off geotech stay predictable, and older fibro gets a licensed asbestos strip-out first. We model the site yield against the zoning before design.
What I would check first on your Campsie block: whether it clears the 600m² duplex minimum or sits in an R3/R4 pocket, and any asbestos before demolition. Those decide the play.
We build these fixed-price, licence HBL 487805C. Get our site-yield feasibility before you commit.
Buildana manages the full duplex development process in Campsie — from feasibility assessment and architectural design through to DA or CDC approval, and fixed-price construction to dual handover. One builder, one contract, two homes.
Read our Complete Duplex Building Guide or explore duplex developments across Sydney.
- Dual occupancy in Campsie from $750K
- Canterbury-Bankstown Council DA and CDC approvals managed
- R2 and R3 zones — established dual occ. provisions
- Minimum lot size 600m² in Campsie
- Class M soil — engineered dual-slab design included
- Strata or Torrens title subdivision available
- 6-year structural warranty per dwelling
- Free feasibility check — near Campsie station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
A strong development market
The suburb carries strong R3 and R4 zoning around the CBD and established streets, so beyond a standard R2 duplex clearing Canterbury-Bankstown's 600m² minimum, there is real medium-density potential.
At a $1.2M to $1.5M median with excellent rail, the yield options are broad.
Model the yield
Where a block clears 600m², a Torrens-title duplex delivers two dwellings, and where R3 or R4 applies, townhouses or apartments can beat it on yield.
The ground behaves, so the slab and footings off geotech stay predictable, and older fibro gets a licensed asbestos strip-out first.
Duplex builder in Campsie — key facts
- Suburb
- Campsie, NSW 2194
- Council / LGA
- Canterbury-Bankstown Council (Canterbury-Bankstown)
- Primary zoning
- R2 Low Density & R3 Medium Density
- Typical lot size
- 500–700m²
- Soil class
- Class M
- Median house price
- $1.2M–$1.5M
- Home era
- 1940s–1970s
- Typical price range
- $750,000 – $1,500,000+
- Typical timeline
- 14–22 months design to handover
- Approval pathway
- CDC for compliant dual-occupancy, else DA
Want a real number for YOUR block — not a generic estimate?
Free site assessment, fixed-price contract, line-itemised quote within 48 hours. No high-pressure sales — just a real builder talking real numbers.
Cost Guide
| Item | Estimated Range |
|---|---|
| Vacant R2/R3 block in Campsie — duplex build | $830,000 – $1,650,000 |
| KDR duplex (demo 1940s–1970s home + dual build) | $900,000 – $1,760,000 |
| Subdivision-ready block (existing survey & titles) | $830,000 – $1,540,000 |
| Corner block dual-frontage duplex | $990,000 – $1,760,000 |
| Investor scenario (neutral-gear focus, rental-ready) | $940,000 – $1,380,000 |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
How It Works
From First Call to Final Key
We assess your Campsie block — lot size (typical 500–700m²), width, R2 Low Density & R3 Medium Density zoning, setbacks, FSR, landscaped area requirements under Canterbury-Bankstown Council's LEP and DCP. Minimum lot for duplex: 600m².
⏱Design phase covers unit layout, access, parking, private open space, and waste management for dual occupancy on your Campsie site. You approve final plans before we move to lodgement.
⏱Duplex approvals get scrutinised harder than single dwellings — neighbour notification, overshadowing, privacy, traffic, waste. Our SEE addresses each on the front foot rather than reactively.
⏱Fixed-price construction of both dwellings from slab to keys. Class M engineered footings, frame, lock-up, internal fit-out, and external works.
⏱Subdivision registration starts in parallel with final fitout so titles issue close to handover, not 6 months after. Buildana coordinates the surveyor and Canterbury-Bankstown Council clearance — important if you're planning to sell one side immediately to fund the next move.
⏱Our Team
Oliver Alameri
Founder / Director / Builder · MPropDev · PhD Student
Ahmad Alameri
Accounts Manager
Claire Wendell
Project Manager
Estimate Your Build Cost
Use our free calculator to get an instant cost estimate for your project
Still got questions? Talk to Oliver directly.
30-min free call — bring your block, your brief, your budget. We'll map out feasibility, timeline, and realistic cost. No sales pitch.
Frequently Asked Questions
Buildana built our granny flat in just 12 weeks. Fast approvals, great communication, and a beautiful final product. Highly recommend.
Fatima Al-Rashid
Liverpool, NSW
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Last updated: 1 July 2025
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Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Campsie 2194. Canterbury-Bankstown Council regulations and local controls are covered on each page.