Duplex Builder St Ives Chase — CDC-Ready Designs, 15-Day Approval
St Ives Chase 2075 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 St Ives Chase 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.
St Ives Chase Dual Occ. — Feasibility to Handover
A duplex in St Ives Chase is unusual, and the reasons are the land itself. Lots here run a large 1,200 to 3,000m2, so they do clear the Ku-ring-gai 1,200m2 dual-occupancy minimum, but this is rural-residential semi-bushland on the edge of Garigal National Park. Bushfire planning controls, with BAL ratings from 19 up to Flame Zone, apply across most of the suburb and add 10 to 15% to construction. At a $2.4M to $3.4M market, a single home almost always makes more of the setting than two dwellings.
Where a duplex does earn its place here, it is a large family hold rather than a sale play. The ground grades moderately reactive, so footings and the slab are engineered to suit, and any dwelling has to meet its BAL construction standard. There is no train, bus only, so buyers here are choosing the land and the trees, not the commute.
What I would check first on your St Ives Chase block: the BAL rating and the bushfire asset protection zones, then whether a single home or a considered dual-occupancy makes more of the bushland setting.
We build these fixed-price, licence HBL 487805C. Send me the block and I will tell you honestly what suits it.
Buildana manages the full duplex development process in St Ives Chase — 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 St Ives Chase from $750K
- Ku-ring-gai Council DA and CDC approvals managed
- R2 zoning — eligible under July 2024 reform
- Minimum lot size 1,200m² in St Ives Chase
- Class M soil — engineered dual-slab design included
- Strata or Torrens title subdivision available
- 6-year structural warranty per dwelling
- Free feasibility check — near Mount Colah (4 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Land clears the minimum, bushfire shapes the build
St Ives Chase lots run 1,200 to 3,000m2, so they clear the Ku-ring-gai 1,200m2 dual-occupancy minimum.
Bushfire controls, BAL 19 up to Flame Zone, apply across most of the suburb and add 10 to 15% to construction.
Premium bushland favours a single home
At a $2.4M to $3.4M market, a single home almost always makes more of the bushland setting than two dwellings.
Where a duplex fits, it is a large family hold; every dwelling still has to meet its BAL construction standard.
Duplex builder in St Ives Chase — key facts
- Suburb
- St Ives Chase, NSW 2075
- Council / LGA
- Ku-ring-gai Council (Ku-ring-gai)
- Primary zoning
- R2 Low Density
- Typical lot size
- 1,200–3,000m²
- Soil class
- Class M
- Median house price
- $2.4M–$3.4M
- Home era
- 1970s–1990s
- 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
Free feasibility check on your St Ives Chase block. We measure frontage width, confirm zoning (R2 Low Density), check minimum lot size against 1,200m² requirement, and review Ku-ring-gai 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 Ku-ring-gai Council (40–90 days) or CDC (10–15 business days). St Ives Chase 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
We build duplexes in St Ives Chase end-to-end — feasibility, design, DA/CDC, dual-slab construction, subdivision. One contract.
Cost Guide
| Item | Estimated Range |
|---|---|
| Attached duplex (side-by-side) | $920,000 – $1,340,000 |
| Attached duplex (stepped/offset) | $1,100,000 – $1,530,000 |
| Detached duplex (two fully separate dwellings) | $1,460,000 – $1,950,000 |
| Luxury detached duplex | $1,950,000+ |
| 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
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Liverpool, NSW
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Last updated: 1 July 2025
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