Dual Occupancy Specialists Strathfield South — Licensed Duplex Builder
NSW licensed duplex builder in Strathfield South 2136. Torrens or strata subdivision, Burwood Council planning expertise, full contract management for investor-grade builds.
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MBA NSW0476 300 300Quick Answer
A duplex in Strathfield South costs $750,000–$1,500,000+ for dual occupancy construction. Attached duplex from $750K, detached from $1M. Buildana manages feasibility, Burwood Council approvals, construction and subdivision under one fixed-price contract.
Strathfield South Duplex Construction
A duplex in Strathfield South works on the larger blocks, though the heritage character shapes the stock. This Burwood-LGA suburb south of Strathfield runs Federation cottages and inter-war homes on 300 to 600m2 blocks against a 550m2 Burwood duplex minimum, so the larger ones clear it and the smaller terraces fall short. On a $2.0M to $3.2M market with a heritage-character premium, a quality Torrens-title duplex on a qualifying block can work.
The ground is Wianamatta Shale with Class H reactive clay pockets, so footings and the slab are engineered to suit, and Cooks River alluvial on the southern fringe brings flood planning controls worth checking. The Federation and inter-war stock carries asbestos, stripped under licence, and heritage streets are confirmed first.
What I would check first on your Strathfield South block: the area against 550m2, the heritage status, and any Cooks River flood control on the southern fringe.
We build these fixed-price, licence HBL 487805C. Send me the block and I will tell you what it carries.
Buildana manages the full duplex development process in Strathfield South — 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 Strathfield South from $750K
- Burwood Council DA and CDC approvals managed
- R2 and R3 zones — established dual occ. provisions
- Minimum lot size 550m² under Burwood DCP 2013 in Strathfield South
- M — engineered dual-slab design included
- Strata or Torrens title subdivision available
- 6-year structural warranty per dwelling
- Free feasibility check — near Strathfield (1.5 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Larger blocks against 550m2
Strathfield South runs Federation and inter-war stock on 300 to 600m2 blocks against a 550m2 Burwood minimum.
The larger ones clear it while the smaller terraces fall short, in a heritage-character market at $2.0M to $3.2M.
Reactive clay and Cooks River flood
The Wianamatta Shale with Class H clay pockets means footings and slab engineered to suit on both dwellings.
Cooks River alluvial on the southern fringe brings flood planning controls, and older stock is stripped of asbestos under licence.
Duplex builder in Strathfield South — key facts
- Suburb
- Strathfield South, NSW 2136
- Council / LGA
- Burwood Council (Burwood Council)
- Primary zoning
- R2 Low Density
- Typical lot size
- 300–600m² (Federation/inter-war terraces and semi-detached predominant; Burwood CBD apartment-led)
- Soil class
- M
- Median house price
- $2.0M–$3.2M (heritage character premium); $1.8M–$2.8M Burwood Heights/Croydon Park/Enfield
- Home era
- 1900s–1940s Federation/Californian Bungalow + inter-war heritage + 2010s+ apartment redevelopment around Burwood CBD
- 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 (side-by-side) | $750,000 – $1,100,000 |
| Attached duplex (stepped/offset) | $900,000 – $1,250,000 |
| Detached duplex (two fully separate dwellings) | $1,200,000 – $1,600,000 |
| Luxury detached duplex | $1,600,000+ |
| Party-wall acoustic & fire upgrade | Included |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
How It Works
From First Call to Final Key
Site visit, title search, and planning assessment for your Strathfield South block. We check lot dimensions against Burwood Council's minimum (550m² under Burwood DCP 2013), review overlays, drainage, access, and services. You get a clear yes/no on duplex feasibility plus estimated yield.
⏱Design has to satisfy four audiences at once: Burwood Council, the future buyer or tenant, the certifier, and you. Each pull in a different direction — our job is to land plans that work for all four. Solar access, privacy, parking, POS, FSR, all balanced.
⏱We lodge and chase your approval — DA through Burwood Council for most duplexes, or CDC where eligible. R2 Low Density zoning in Strathfield South. CC issued, conditions cleared, ready to build.
⏱Building both sides in parallel halves the loan interest holding cost vs sequential builds. Bulk material orders for cabinetry, tiles, fixtures cut unit cost. Single site setup, single supervisor, single insurance period — efficiency compounds across the whole programme.
⏱Strata or Torrens title subdivision completed. Separate OCs, individual metering, 6-year structural warranty per dwelling. Strong rental demand near Strathfield (1.5 km).
⏱Our Team
Oliver Alameri
Founder / Director / Builder · MPropDev · PhD Student
Ahmad Alameri
Accounts Manager
Claire Wendell
Project Manager
Estimate Your Build Cost
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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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Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Strathfield South 2136. Burwood Council regulations and local controls are covered on each page.