Duplex Builder Greenacre — CDC-Ready Designs, 15-Day Approval
Greenacre 2190 duplex specialists. Compliant design means CDC approval in ~15 business days, construction complete in 10–14 months. Feasibility within 48 hours.
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MBA NSW0476 300 300Quick Answer
A duplex in Greenacre 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.
Greenacre Dual Occ. — Feasibility to Handover
A duplex in Greenacre is a strong dual-occupancy play on a wide block. This suburb runs 1950s to 1970s fibro and brick on wide 550 to 800m² blocks, so most clear Canterbury-Bankstown's 600m² dual-occupancy minimum, and a Torrens-title duplex at a $1.0M to $1.3M median delivers two dwellings with real yield close to Bankstown. The wide blocks give room for a duplex that lives well.
The manageable Class M ground keeps the duplex slab and footings off geotech predictable, and where the older homes carry fibro a licensed asbestos strip-out comes first. A compliant duplex on a clearing block moves through Council on a predictable path, and the location supports both dwellings for rental and resale.
What I would check first on your Greenacre block: whether it clears the 600m² minimum, the building envelope for two dwellings, and any asbestos before demolition. Those set the play.
We build these fixed-price, licence HBL 487805C. Get our dual-occupancy feasibility before you commit.
Buildana manages the full duplex development process in Greenacre — 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 Greenacre from $750K
- Canterbury-Bankstown Council DA and CDC approvals managed
- R2 zoning — eligible under July 2024 reform
- Minimum lot size 600m² in Greenacre
- Class M soil — engineered dual-slab design included
- Strata or Torrens title subdivision available
- 6-year structural warranty per dwelling
- Free feasibility check — near Bankstown (2 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Wide blocks, real yield
This suburb runs 1950s to 1970s fibro and brick on wide 550 to 800m² blocks, so most clear Canterbury-Bankstown's 600m² dual-occupancy minimum.
A Torrens-title duplex at a $1.0M to $1.3M median delivers two dwellings with real yield close to Bankstown.
Predictable build
The manageable Class M ground keeps the duplex slab and footings off geotech predictable, and older fibro gets a licensed asbestos strip-out first.
A compliant duplex on a clearing block moves through Council predictably, supporting both dwellings for rental and resale.
Duplex builder in Greenacre — key facts
- Suburb
- Greenacre, NSW 2190
- Council / LGA
- Canterbury-Bankstown Council (Canterbury-Bankstown)
- Primary zoning
- R2 Low Density
- Typical lot size
- 550–800m²
- Soil class
- Class M
- Median house price
- $1.0M–$1.3M
- Home era
- 1950s–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
Real Project
Attached Duplex — Greenacre
4-bed + 3-bed attached duplex on a 610sqm R2 block. Canterbury-Bankstown Council DCP deep-soil and landscaped-area controls drove the plan — we pushed the driveway to the boundary to free up deep soil in the rear corner. CDC — 13 business days.
Completed in 32 weeks. Total cost $1.06M.
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.
How It Works
From First Call to Final Key
Free feasibility check on your Greenacre block. We measure frontage width, confirm zoning (R2 Low Density), check minimum lot size against 600m² requirement, and review Canterbury-Bankstown Council's DCP controls. Written feasibility report within 5 business days.
⏱Two dwellings, one site — design is mostly about geometry. Frontage split, party wall position, garage stacking, private courtyard size, and the streetscape elevation a certifier will actually approve. We work the design until both sides feel like proper homes, not mirror-image apartments.
⏱DA through Canterbury-Bankstown Council (40–90 days) or CDC (10–15 business days). Greenacre is zoned R2 Low Density. Construction Certificate obtained before works commence.
⏱Dual construction runs 9–14 months. Engineered slabs sized for Class M soil, simultaneous frame-up, staggered fit-out for efficiency. Your project manager coordinates all trades and inspections.
⏱Two homes, two titles, two OCs, two warranty packs. We hand over a clean documentation set per dwelling: certifier reports, BASIX certs, structural sign-offs, appliance warranties, maintenance schedules. Whatever the next owner or buyer asks for is in the file.
⏱Quality Promise
Every Buildana duplex in Greenacre is built under a fixed-price contract — feasibility through to dual handover and subdivision.
Cost Guide
| Item | Estimated Range |
|---|---|
| Attached duplex (side-by-side) | $790,000 – $1,160,000 |
| Attached duplex (stepped/offset) | $950,000 – $1,310,000 |
| Detached duplex (two fully separate dwellings) | $1,260,000 – $1,680,000 |
| Luxury detached duplex | $1,680,000+ |
| Party-wall acoustic & fire upgrade | Included |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
Our Team
Oliver Alameri
Founder / Director / Builder · MPropDev · PhD Student
Ahmad Alameri
Accounts Manager
Claire Wendell
Project Manager
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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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Other Buildana services in Greenacre
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Greenacre 2190. Canterbury-Bankstown Council regulations and local controls are covered on each page.