Knockdown Rebuild Bilgola Beach — Demo to Handover in 12 Months
Bilgola Beach 2107 KDR with tight programme: demolition (3–4 weeks), new home (24–40 weeks). CDC fast-track or Northern Beaches Council DA. Weekly progress updates.
HIA Member
MBA NSW0476 300 300Quick Answer
A knockdown rebuild in Bilgola Beach 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.
New Home on Your Bilgola Beach Block
A knockdown rebuild in Bilgola Beach is an ultra-premium coastal project in the secluded oceanfront cove — Federation beach houses, Sydney School modernist homes and contemporary builds on 600 to 1,500m² blocks with significant sandstone fall to the beach. The oceanfront market here is among the Beaches' most exclusive.
The full stack applies: deep sandstone rock priced from a geotech bore, coastal salt-grade specs, the Coastal Hazard zone on direct beachfront, BAL ratings on the bush-fringe lots, and the Heritage Conservation Area over the cove. And on a genuine Sydney School home, the architecture itself can be worth keeping — I will say so honestly.
The older stock can carry asbestos, so a licensed strip-out leads any demolition.
We rebuild fixed-price, licence HBL 487805C. Get our feasibility, with the full coastal stack costed, before you commit.
Buildana manages the complete knockdown rebuild process in Bilgola Beach — 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 Beach from $450K
- Northern Beaches Council DA and CDC approvals managed
- Demolition and asbestos removal included
- Hawkesbury Sandstone — engineered slab design included
- Typical blocks 600–1,500m² in Bilgola Beach
- 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 exclusive cove, a full stack
Bilgola Beach's secluded cove carries one of the Beaches' most exclusive oceanfront markets, on 600 to 1,500m² blocks with significant sandstone fall. The build stack is complete: deep rock, salt-grade specs, Coastal Hazard on the beachfront, BAL on the bush fringe, and the cove's Heritage Conservation Area.
A rebuild here is a serious project, and the setting justifies serious design.
An honest note on the Sydney School
Bilgola's mid-century Sydney School homes are genuine architecture — on a well-kept one, the building itself can carry value worth keeping, and I will give you an honest read before defaulting to demolition.
Where a rebuild is the call, the rock is priced from a geotech bore, the coastal specs are built in, and the old stock's asbestos is handled with a licensed strip-out.
Knockdown-rebuild builder in Bilgola Beach — key facts
- Suburb
- Bilgola Beach, NSW 2107
- Council / LGA
- Northern Beaches Council (Northern Beaches)
- Primary zoning
- R2 Low
- Typical lot size
- 600–1,500m²
- Soil class
- Hawkesbury Sandstone
- Median house price
- $4.5M–$15M+ (oceanfront)
- Home era
- 1920s–1960s heritage + Sydney School modernist + 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.
How It Works
From First Call to Final Key
On-site assessment covers block measurements, soil conditions (Class Hawkesbury Sandstone), tree preservation checks, service locations, and asbestos identification on your 1920s–1960s heritage + Sydney School modernist + premium contemporary-era home. Clear feasibility report before you commit.
⏱Approval pathway gets locked at design stage based on FSR, height, setbacks, and any overlays. Most Bilgola Beach KDRs go CDC for speed; we use DA when the design wants to push past complying development limits. Either way, all documentation prepared and lodged in-house.
⏱Existing home demolished by licensed contractors. Asbestos removed and disposed of to EPA standards. Services disconnected, site cleared and prepped for construction. Buildana manages all permits and logistics.
⏱Construction starts the week demolition finishes — no idle site, no momentum lost. Slab pour usually within the first month, frame stand soon after. From frame stand to handover runs 6–9 months for a typical Bilgola Beach family home.
⏱Final inspection, Occupation Certificate, 6-year structural warranty, keys, and maintenance guide. Services reconnected. Your new home near Bilgola Beach + Bilgola SLSC + Bilgola Bends scenic drive.
⏱Quality Promise
Buildana handles Bilgola Beach KDR end-to-end — old house out, new house in, one contract, one contractor, one defined timeline.
Cost Guide
| Item | Estimated Range |
|---|---|
| Entry-level single storey KDR | $610,000 – $830,000 |
| Mid-range double storey KDR | $920,000 – $1,280,000 |
| Architectural KDR | $1,280,000 – $1,920,000 |
| Luxury KDR (high-spec finishes) | $1,920,000+ |
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
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
Bilgola Beach KDR — Start Here
Free KDR site assessment for Bilgola Beach 2107. We'll assess your block, estimate cost, and provide a fixed-price budget.
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Other Buildana services in Bilgola Beach
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Bilgola Beach 2107. Northern Beaches Council regulations and local controls are covered on each page.