Bilgola Plateau Knockdown Rebuild — Stay on Your Street
Buildana handles KDR across Bilgola Plateau 2107. 1960s–1990s + premium contemporary homes on 600–1,200m² blocks — we know the soil, the Northern Beaches Council rules, and the neighbours' expectations.
HIA Member
MBA NSW0476 300 300New Home on Your Bilgola Plateau Block
A knockdown rebuild on Bilgola Plateau is really an excavation project with a house on top. Hawkesbury Sandstone runs deep here and rock excavation typically lands between $60K and $150K, the difference depends on how much of your 600 to 1,200m² block needs cutting to capture the ocean view off the eastern fall. Plenty of the 1960s to 1990s stock, including the old pole houses, was built to dodge that rock rather than master it.
Bushfire ratings run BAL-19 to Flame Zone on lots backing Hudson Park Reserve, which shapes glazing, cladding and deck detailing before you pick a single finish. None of this kills the project, medians of $2.6M to $5M say the end value is there, it just means the feasibility has to be done properly, geotech and BAL assessment first.
What I would check first on a Bilgola Plateau block: how much rock the view costs to cut, the BAL rating near the reserve, and the eastern fall. Those set the feasibility.
We build these fixed-price, licence HBL 487805C. Get in touch and we will walk the block before you fall in love with a floor plan.
Buildana manages the complete knockdown rebuild process in Bilgola Plateau — 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 Bilgola Plateau from $450K
- Northern Beaches Council DA and CDC approvals managed
- Demolition and asbestos removal included
- Hawkesbury Sandstone — engineered slab design included
- Typical blocks 600–1,200m² in Bilgola Plateau
- Single and two-storey designs available
- 6-year structural warranty
- Free site assessment — near B-Line bus to CBD (Avalon interchange) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
An excavation project with a house on top
Hawkesbury Sandstone runs deep on Bilgola Plateau, and rock excavation typically lands between $60K and $150K. The difference depends on how much of your 600 to 1,200m² block needs cutting to capture the ocean view off the eastern fall.
Plenty of the 1960s to 1990s stock, including the old pole houses, was built to dodge that rock rather than master it. A rebuild that works the fall keeps the number honest.
Feasibility before the floor plan
Bushfire ratings run BAL-19 to Flame Zone on lots backing Hudson Park Reserve, which shapes glazing, cladding and deck detailing before you pick a single finish.
None of this kills the project, medians of $2.6M to $5M say the value is there, but the feasibility, geotech and BAL assessment, has to come first. We walk the block before you fall in love with a floor plan.
Knockdown-rebuild builder in Bilgola Plateau — key facts
- Suburb
- Bilgola Plateau, NSW 2107
- Council / LGA
- Northern Beaches Council (Northern Beaches)
- Primary zoning
- R2 Low
- Typical lot size
- 600–1,200m²
- Soil class
- Hawkesbury Sandstone
- Median house price
- $2.6M–$5M
- Home era
- 1960s–1990s + 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.
Quality Promise
Every Buildana knockdown rebuild in Bilgola Plateau is delivered under a fixed-price contract — site assessment through to defect-free handover.
How It Works
From First Call to Final Key
Everything that has to be right before we touch the ground. KDR feasibility is two questions: what can the block legally support, and is it cheaper to build new than fix old. We answer both in writing within a week, with cost ranges grounded in current Bilgola Plateau market data — not generic Sydney averages. New home designed for your Bilgola Plateau block — maximising FSR, orientation, and streetscape. Working drawings, engineering, and BASIX prepared. CDC or DA lodged with Northern Beaches Council.
⏱The Bilgola Plateau construction phase. Fixed price, programmed, supervised. Full demolition management: asbestos survey report, licensed removal where required, structural demolition, site clearing, temporary fencing, and dust/noise management. Northern Beaches Council demolition permit obtained beforehand. Build sequence: site prep, slab pour, frame stand, roof, brickwork, lock-up, plumbing and electrical rough-in, plaster, internal fit-out, kitchen install, tiling, flooring, painting, external works, final clean. Each stage signed off before payment release.
⏱The job isn't done when the site's clean; it's done when you have keys, certificates and warranties. Defect-free handover inspection, OC issued, keys in hand. Permanent services reconnected, landscaping complete, 6-year structural warranty, and full maintenance guide provided.
⏱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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Knockdown Rebuild in Bilgola Plateau
Free KDR site assessment for Bilgola Plateau 2107. We'll assess your block, estimate cost, and provide a fixed-price budget.
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Other Buildana services in Bilgola Plateau
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Bilgola Plateau 2107. Northern Beaches Council regulations and local controls are covered on each page.