Knockdown Rebuild Bayview — One Contract, Demo to Keys
Everything under one agreement in Bayview 2104: demolition, asbestos removal, site prep, design, approvals, engineering, new home construction, landscaping and Occupation Certificate.
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A knockdown rebuild in Bayview costs $450,000–$1,200,000+. Standard single-storey from $450K, two-storey from $650K. Buildana manages demolition, Northern Beaches Council approvals, and construction under one fixed-price contract.
Bayview KDR — Single Contract, New Home
A knockdown rebuild in Bayview is a premium Pittwater project — Federation, mid-century and contemporary on 800 to 2,000m² blocks with substantial sandstone fall to Pittwater. The waterfront and water-view market is genuinely premium, and a rebuild designs around the outlook.
The stack here is serious: deep sandstone rock priced from a geotech bore, BAL-19 to Flame Zone bushfire ratings on most bushland-fringe lots, the Foreshore Building Line on direct waterfront, and the Sydney Drinking Water Catchment overlay on parts of the western edge. I check all of it upfront.
The older stock can carry asbestos, so a licensed strip-out leads the demolition.
We rebuild fixed-price, licence HBL 487805C. Get our feasibility, with the rock, bushfire and foreshore costed, before you commit.
Buildana manages the complete knockdown rebuild process in Bayview — 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 Bayview from $450K
- Northern Beaches Council DA and CDC approvals managed
- Demolition and asbestos removal included
- Hawkesbury Sandstone — engineered slab design included
- Typical blocks 800–2,000m² in Bayview
- Single and two-storey designs available
- 6-year structural warranty
- Free site assessment — near B-Line bus to CBD via Mona Vale station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Premium Pittwater, serious stack
Bayview's 800 to 2,000m² blocks fall to Pittwater with a genuinely premium waterfront market. The build stack is serious: deep sandstone rock, BAL-19 to Flame Zone on most bushland-fringe lots, the Foreshore Building Line on direct waterfront, and the Drinking Water Catchment overlay on the western edge.
A rebuild here is a serious project that rewards serious planning — and the outlook justifies it.
Costed from the bore and the mapping
The deep rock is priced from a real geotech bore, the BAL rating from the RFS assessment, and the foreshore and catchment constraints from the mapping — all before the fixed price is set.
The older stock can carry asbestos, so a licensed strip-out leads the demolition.
Knockdown-rebuild builder in Bayview — key facts
- Suburb
- Bayview, NSW 2104
- Council / LGA
- Northern Beaches Council (Northern Beaches)
- Primary zoning
- R2 Low
- Typical lot size
- 800–2,000m²
- Soil class
- Hawkesbury Sandstone
- Median house price
- $3.5M–$10M+ (waterfront)
- Home era
- 1920s–1970s + premium contemporary
- 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 |
|---|---|
| Single storey rebuild (150–200m²) | $590,000 – $830,000 |
| Double storey rebuild (200–300m²) | $830,000 – $1,280,000 |
| Premium rebuild (300m²+) | $1,280,000+ |
| Demolition (1920s–1970s + premium contemporary Bayview home) | $22,000 – $49,000 |
| Asbestos removal (if present) | $10,000 – $31,000 |
| Service disconnections & reinstatement | $4,000 – $10,000 |
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. Free site inspection of your Bayview property. We check lot dimensions, Northern Beaches Council's planning controls, existing home condition, and potential asbestos. Written assessment with budget estimate within 5 business days. 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.
⏱The Bayview construction phase. Fixed price, programmed, supervised. Licensed demolition of existing 1920s–1970s + premium contemporary-era dwelling. Asbestos removal by certified contractors (if present). Site cleared, levelled, and ready for new slab. Typically 1–2 weeks. Your new home goes up on the cleared site. Engineered slab sized for Class Hawkesbury Sandstone soil, frame, roof, fit-out, kitchen, bathrooms, flooring, painting, driveway, and landscaping. Quality inspections at every stage.
⏱The job isn't done when the site's clean; it's done when you have keys, certificates and warranties. 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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Headquartered in Western Sydney's Fairfield. Active across all 28 metropolitan Sydney LGAs — from Penrith to the Eastern Suburbs, the Hills to the Sutherland Shire.
Last updated: 1 April 2026
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