Knockdown Rebuild The Spit — From $450K All-In
Fixed-price knockdown rebuild in The Spit 2088. Demolition, new home, all Mosman Council approvals under one contract. No surprises, no variation trail.
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A knockdown rebuild in The Spit costs $450,000–$1,200,000+. Standard single-storey from $450K, two-storey from $650K. Buildana manages demolition, Mosman Council approvals, and construction under one fixed-price contract.
Knockdown Rebuild Builder in The Spit
A knockdown rebuild at The Spit is a premium harbour-fall project at the southern end of the Spit Bridge — Federation mansions, inter-war heritage and contemporary harbour-fall builds on 600 to 1,500m² blocks with Middle Harbour outlook. A rebuild lets you design a substantial home around a genuine harbour setting.
Deep rock excavation is typical here, and combined with the substantial harbour fall, a rebuild needs suspended slabs and substantial retaining. I get a real geotech so the deep rock, fall and retaining are all costed properly, because on a Spit block that is the bulk of the substructure budget.
Heritage Conservation Areas cover most older streets, so a rebuild generally goes down the DA path, and on a heritage mansion a restoration is worth weighing. The pre-war stock can carry asbestos and lead paint, so a licensed strip-out leads the demolition.
We rebuild fixed-price, licence HBL 487805C. Get our feasibility, with the deep rock and fall costed, before you commit.
Buildana manages the complete knockdown rebuild process in The Spit — from site assessment and architectural design through to DA or CDC approval, demolition management, and fixed-price construction to handover. One builder, one contract, one new home.
Read our KDR Cost Guide 2026 or use the Renovation vs KDR Calculator to compare options.
- New home in The Spit from $450K
- Mosman Council DA and CDC approvals managed
- Demolition and asbestos removal included
- M — engineered slab design included
- Typical blocks 600–1,500m² in The Spit
- Single and two-storey designs available
- 6-year structural warranty
- Free site assessment — near North Sydney (7 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Premium Middle Harbour setting
The Spit is the harbour-fall locality at the southern end of the Spit Bridge, with Federation mansions and contemporary harbour-fall builds on 600 to 1,500m² blocks and Middle Harbour outlook. A rebuild here designs a substantial home around a genuine harbour setting.
It is a premium address where the build has to match the outlook.
Deep rock and harbour fall
Deep rock excavation is typical here, and with the substantial harbour fall, a rebuild needs suspended slabs and substantial retaining. I get a real geotech so the deep rock, fall and retaining are all costed properly — on a Spit block, that is the bulk of the substructure budget.
Heritage Conservation Areas cover most older streets, so a rebuild generally goes down the DA path. The pre-war stock can carry asbestos and lead paint, so a licensed strip-out leads the demolition.
Knockdown-rebuild builder in The Spit — key facts
- Suburb
- The Spit, NSW 2088
- Council / LGA
- Mosman Council (Mosman)
- Primary zoning
- R2 Low Density
- Typical lot size
- 600–1,500m²
- Soil class
- M
- Median house price
- $4.5M–$10M
- Home era
- 1900s–1950s heritage
- Typical price range
- $450,000 – $1,200,000+
- Typical timeline
- 14–22 months including demolition
- Approval pathway
- CDC where eligible or DA for complex sites
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 |
|---|---|
| Demolish 1900s–1950s heritage fibro → modern brick double storey | $730,000 – $1,400,000 |
| Demolish brick veneer → new brick veneer (like-for-like uplift) | $670,000 – $1,190,000 |
| Demolish to downsize (smaller footprint) | $640,000 – $1,010,000 |
| Demolish to upsize (growing family) | $980,000 – $1,680,000 |
| Demolish older home, rebuild investment-grade | $780,000 – $1,260,000 |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
How It Works
From First Call to Final Key
Free site inspection of your The Spit property. We check lot dimensions, Mosman Council's planning controls, existing home condition, and potential asbestos.
⏱KDR is the chance to get the design right — the new build doesn't have to mimic the original layout. We start from your block's strengths (orientation, slope, views) and your family's brief, then design the home the original lot always deserved.
⏱Licensed demolition of existing 1900s–1950s heritage-era dwelling. Asbestos removal by certified contractors (if present).
⏱Your new home goes up on the cleared site. Engineered slab sized for Class M soil, frame, roof, fit-out, kitchen, bathrooms, flooring, painting, driveway, and landscaping.
⏱Handover pack: OC, structural certificates, BASIX, appliance manuals and warranties, paint colour schedule, maintenance plan, and the keys. Six-year structural warranty kicks in from OC date — keep the documentation safe for any future sale.
⏱Our Team
Oliver Alameri
Founder / Director / Builder · MPropDev · PhD Student
Ahmad Alameri
Accounts Manager
Claire Wendell
Project Manager
Estimate Your Build Cost
Use our free calculator to get an instant cost estimate for your project
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 April 2026
Book a The Spit Knockdown Rebuild Assessment
Free KDR site assessment for The Spit 2088. We'll assess your block, estimate cost, and provide a fixed-price budget.
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Other Buildana services in The Spit
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in The Spit 2088. Mosman Council regulations and local controls are covered on each page.