West Pymble Duplex Builder — Western Sydney Dual Occupancy
Buildana is a local Ku-ring-gai duplex builder. We know which West Pymble streets support Torrens title subdivision, which suit strata, and what Ku-ring-gai Council will approve. Free site feasibility.
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MBA NSW0476 300 300Quick Answer
A duplex in West Pymble costs $750,000–$1,500,000+ for dual occupancy construction. Attached duplex from $750K, detached from $1M. Buildana manages feasibility, Ku-ring-gai Council approvals, construction and subdivision under one fixed-price contract.
Dual Occupancy Developments in West Pymble
A duplex in West Pymble has a slightly better case than its heritage neighbours, because the stock here is mid-century to 1980s rather than heavy Federation. Blocks run 800 to 1,400m2 against the Ku-ring-gai 1,200m2 dual-occupancy minimum, so the larger ones clear it. On a $2.8M to $4.2M market, a considered Torrens-title duplex on a qualifying block can work, though the valley ground adds cost.
This suburb drops from the Pymble ridge into the Lane Cove valley, so the soil grades reactive clay, Class H to E on many sites, and footings, slab and retaining are engineered to suit on both dwellings. The lighter heritage load means fewer streets are locked up, but I still confirm the controls first.
What I would check first on your West Pymble block: the area against 1,200m2, then the slope and reactive clay, because those drive the engineering and the cost.
We build these fixed-price, licence HBL 487805C. Send me the block and I will tell you honestly what it carries.
Buildana manages the full duplex development process in West Pymble — 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 West Pymble from $750K
- Ku-ring-gai Council DA and CDC approvals managed
- R2 zoning — eligible under July 2024 reform
- Minimum lot size 1,200m² in West Pymble
- Class M–H soil — engineered dual-slab design included
- Strata or Torrens title subdivision available
- 6-year structural warranty per dwelling
- Free feasibility check — near Pymble (3 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Lighter heritage, larger blocks
West Pymble runs mid-century to 1980s stock on 800 to 1,400m2 blocks, so the larger ones clear the 1,200m2 minimum.
The lighter heritage load means fewer streets are locked up than in the Federation suburbs nearby.
Valley slope and reactive clay
Dropping into the Lane Cove valley, the soil grades Class H to E on many sites.
Footings, slab and retaining are engineered to suit on both dwellings, which adds cost at the $2.8M to $4.2M market.
Duplex builder in West Pymble — key facts
- Suburb
- West Pymble, NSW 2073
- Council / LGA
- Ku-ring-gai Council (Ku-ring-gai)
- Primary zoning
- R2 Low Density
- Typical lot size
- 800–1,400m²
- Soil class
- Class M–H
- Median house price
- $2.8M–$4.2M
- Home era
- 1950s–1980s
- 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.
How It Works
From First Call to Final Key
Everything that has to be right before we touch the ground. Quick desktop check first — lot size, zoning, frontage — then full site visit if it stacks. Drainage path, neighbour overlooking, slope, services, easements. 1,200m² minimum is just the entry ticket; the real feasibility is whether two compliant dwellings actually fit and sell. Our architect designs both dwellings to maximise your West Pymble block's yield — floor plans, elevations, 3D renders, and landscape concept. We optimise for rental return and sale value under Ku-ring-gai Council's DCP.
⏱The West Pymble construction phase. Fixed price, programmed, supervised. Most West Pymble duplexes go DA route through Ku-ring-gai Council — CDC pathways for dual occupancy are restrictive on most R2 blocks. We pre-meet with council planners on borderline sites to confirm support before lodgement, which avoids a 3-month round trip on RFIs. Both dwellings built simultaneously — engineered slabs (Class M–H soil), frame, lock-up, fit-out. Milestone updates from your project manager.
⏱The job isn't done when the site's clean; it's done when you have keys, certificates and warranties. Final inspections, dual OCs issued, subdivision registered with LRS. Each dwelling gets its own title, services, and 6-year structural warranty. Ready to rent, sell, or occupy.
⏱Quality Promise
Buildana delivers West Pymble duplexes as a single project — one contractor accountable from site check to subdivision.
Cost Guide
| Item | Estimated Range |
|---|---|
| Attached duplex (2 × 180–220m²) | $900,000 – $1,200,000 |
| Attached duplex (2 × 220–260m²) | $1,200,000 – $1,560,000 |
| Detached duplex (2 × 220–280m²) | $1,440,000 – $1,860,000 |
| Strata/Torrens subdivision | $18,000 – $36,000 |
| Demolition (if KDR duplex) | $22,000 – $48,000 |
| Council contributions | $12,000 – $72,000+ |
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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Liverpool, NSW
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Last updated: 1 July 2025
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