Liberty Grove Duplex Builder — Western Sydney Dual Occupancy
Buildana is a local City of Canada Bay duplex builder. We know which Liberty Grove streets support Torrens title subdivision, which suit strata, and what City of Canada Bay Council will approve. Free site feasibility.
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MBA NSW0476 300 300Quick Answer
A duplex in Liberty Grove costs $750,000–$1,500,000+ for dual occupancy construction. Attached duplex from $750K, detached from $1M. Buildana manages feasibility, City of Canada Bay Council approvals, construction and subdivision under one fixed-price contract.
Duplex Builder in Liberty Grove
A duplex in Liberty Grove is not really the product, because this is a master-planned gated community of villas and townhouses on strata blocks, not freestanding dual-occupancy lots. The suburb was built in the 1990s and 2000s on the former Olympic Games site, and the R3 master-planned framework with strict community controls means a Torrens-title duplex on a freestanding lot is very unlikely. I would rather be straight about that than pretend otherwise.
The estate character, security and shared amenity are exactly what the controls protect, so splitting a block does not fit. The ground is Wianamatta Shale, engineered off geotech. If you are after dual-occupancy yield, neighbouring Concord West or Rhodes with genuine detached lots make far more sense, and I will point you to them.
What I would check first at Liberty Grove: whether any freestanding duplex-capable lot exists at all, which is very unlikely, and the better dual-occ options nearby. That is the honest starting point.
We build these fixed-price, licence HBL 487805C. Tell me what you are after and I will point you to where a duplex actually works.
Buildana manages the full duplex development process in Liberty Grove — 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 Liberty Grove from $750K
- City of Canada Bay Council DA and CDC approvals managed
- R2 and R3 zones — established dual occ. provisions
- Minimum lot size 600m² in Liberty Grove
- M–H — engineered dual-slab design included
- Strata or Torrens title subdivision available
- 6-year structural warranty per dwelling
- Free feasibility check — near Concord West (1 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
A master-planned gated estate
This gated community of villas and townhouses was built in the 1990s and 2000s on strata blocks, not freestanding dual-occupancy lots.
The R3 master-planned framework with strict community controls makes a Torrens-title duplex on a freestanding lot very unlikely.
Honest redirect
The ground is Wianamatta Shale, engineered off geotech, but a duplex splitting a block does not fit the master-planned framework.
For dual-occupancy yield, neighbouring Concord West or Rhodes with genuine detached lots make far more sense.
Duplex builder in Liberty Grove — key facts
- Suburb
- Liberty Grove, NSW 2138
- Council / LGA
- City of Canada Bay Council (City of Canada Bay)
- Primary zoning
- R3 master-planned
- Typical lot size
- 200–400m²
- Soil class
- M–H
- Median house price
- $1.6M–$2.8M
- Home era
- 1990s–2000s master-planned
- 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 |
|---|---|
| Attached duplex (2 × 180–220m²) | $680,000 – $900,000 |
| Attached duplex (2 × 220–260m²) | $900,000 – $1,170,000 |
| Detached duplex (2 × 220–280m²) | $1,080,000 – $1,400,000 |
| Strata/Torrens subdivision | $14,000 – $27,000 |
| Demolition (if KDR duplex) | $16,000 – $36,000 |
| Council contributions | $9,000 – $54,000+ |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
How It Works
From First Call to Final Key
Everything that has to be right before we touch the ground. We assess your Liberty Grove block — lot size (typical 200–400m²), width, R3 master-planned zoning, setbacks, FSR, landscaped area requirements under City of Canada Bay Council's LEP and DCP. Minimum lot for duplex: 600m². You'll know viability before spending on design. Design phase covers unit layout, access, parking, private open space, and waste management for dual occupancy on your Liberty Grove site. You approve final plans before we move to lodgement.
⏱The Liberty Grove construction phase. Fixed price, programmed, supervised. 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. Cleaner submission, fewer conditions, faster CC. Fixed-price construction of both dwellings from slab to keys. Class M–H engineered footings, frame, lock-up, internal fit-out, and external works. Weekly progress reports.
⏱The job isn't done when the site's clean; it's done when you have keys, certificates and warranties. Subdivision registration starts in parallel with final fitout so titles issue close to handover, not 6 months after. Buildana coordinates the surveyor and City of Canada Bay 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
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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.
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Liverpool, NSW
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Last updated: 1 July 2025
Develop a Duplex in Liberty Grove
Free duplex feasibility assessment for Liberty Grove 2138. We'll check your block, estimate yield, and provide a fixed-price budget.
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Other Buildana services in Liberty Grove
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Liberty Grove 2138. City of Canada Bay Council regulations and local controls are covered on each page.