Balgowlah Heights Knockdown Rebuild — Stay on Your Street
Buildana handles KDR across Balgowlah Heights 2093. 1900s–1940s heritage + 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 300Quick Answer
A knockdown rebuild in Balgowlah Heights 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 Balgowlah Heights Block
A knockdown rebuild in Balgowlah Heights is an ultra-premium harbour project — Federation, inter-war and premium contemporary on 600 to 1,200m² blocks with substantial sandstone fall to Middle Harbour and North Harbour. The harbour outlook drives the market, and a rebuild designs around it.
Deep rock excavation of $60,000 to $150,000 is typical here, and combined with the harbour fall, a rebuild often needs suspended slabs and substantial retaining, all priced from a real geotech bore. Heritage Conservation Areas cover the older streets.
The pre-war stock carries 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 Balgowlah Heights — 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 Balgowlah Heights 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 Balgowlah Heights
- Single and two-storey designs available
- 6-year structural warranty
- Free site assessment — near B-Line bus to CBD via Mosman station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
The harbour outlook is the point
Balgowlah Heights' 600 to 1,200m² blocks fall to Middle Harbour and North Harbour, and the outlook drives the premium. A rebuild designs a substantial home around the harbour views the original Federation home rarely used well.
It is one of the Beaches' most tightly held premium peninsulas.
Deep rock and harbour fall
Deep rock excavation of $60,000 to $150,000 is typical, and the harbour fall means suspended slabs and substantial retaining on the fall lots — all priced from a real geotech bore so the fixed price holds.
Heritage Conservation Areas cover the older streets, and the pre-war stock carries asbestos and lead paint, so a licensed strip-out leads the demolition.
Knockdown-rebuild builder in Balgowlah Heights — key facts
- Suburb
- Balgowlah Heights, NSW 2093
- Council / LGA
- Northern Beaches Council (Northern Beaches)
- Primary zoning
- R2 Low
- Typical lot size
- 600–1,200m²
- Soil class
- Hawkesbury Sandstone
- Median house price
- $4.5M–$12M+ (harbour-front)
- Home era
- 1900s–1940s heritage + 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 |
|---|---|
| Demolish 1900s–1940s heritage + premium contemporary fibro → modern brick double storey | $650,000 – $1,250,000 |
| Demolish brick veneer → new brick veneer (like-for-like uplift) | $600,000 – $1,060,000 |
| Demolish to downsize (smaller footprint) | $580,000 – $900,000 |
| Demolish to upsize (growing family) | $880,000 – $1,500,000 |
| Demolish older home, rebuild investment-grade | $700,000 – $1,130,000 |
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 Balgowlah Heights property. We check lot dimensions, Northern Beaches 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–1940s heritage + premium contemporary-era dwelling. Asbestos removal by certified contractors (if present).
⏱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.
⏱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
We Build Across Sydney
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
Explore Related Topics
Book a Balgowlah Heights Knockdown Rebuild Assessment
Free KDR site assessment for Balgowlah Heights 2093. We'll assess your block, estimate cost, and provide a fixed-price budget.
Start Your ProjectMore in Balgowlah Heights
Other Buildana services in Balgowlah Heights
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Balgowlah Heights 2093. Northern Beaches Council regulations and local controls are covered on each page.