Home Extension Northwood — Design, Approval, Structural, Build
Full-service extensions in Northwood 2066: structural survey of existing 1880s–1940s heritage home, design, Lane Cove Council approval, engineering, weatherproofed construction, matched finish to original dwelling.
HIA Member
MBA NSW0476 300 300Northwood Home Extensions — Fixed Price
A home extension in Northwood is really the only way the enclave changes at all. Heritage conservation covers virtually every street, and demolition is effectively off the table, so growing a home here means a conserving wing rather than a rebuild — and in a pocket this tightly held, that path is well rewarded.
The existing fabric stays, and the wing works behind and below the sightlines, opening the living toward the protected Woodford Bay outlook where the fall allows. The harbour fall is engineered early, and the pre-war fabric gets its lead and asbestos handled under licence.
At a $4.0M to $8.0M median, exactness is the standard — in an enclave that barely turns over, a wing done properly is both how you get the space and how you protect the value.
We build these fixed-price, licence HBL 487805C. Get our extension scope, with heritage and fall resolved, before you commit.
Buildana manages the complete home extension process in Northwood — from design consultation and structural engineering through to DA or CDC approval, and fixed-price construction to handover. Extend your home without the stress.
Read our Home Extension Cost Guide 2026 or explore extension approval pathways in NSW.
- Home extensions in Northwood from $150K
- Lane Cove Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- M — structural engineering included
- 1880s–1940s heritage-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Wollstonecraft (3 km, ferry from Longueville) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
The enclave's only path
Northwood barely demolishes anything, so the wing carries the evolution — conserved Federation fabric, generous living behind it, the protected bay outlook captured where the fall allows.
A tightly-held enclave rewards exactly this kind of patience.
Fall and fabric handled
The harbour fall is engineered early rather than improvised on site.
The pre-war fabric's lead paint and asbestos are both handled under licence, and all of it is priced into the job from the outset.
Home extension builder in Northwood — key facts
- Suburb
- Northwood, NSW 2066
- Council / LGA
- Lane Cove Council (Lane Cove)
- Primary zoning
- R2 Low Density
- Typical lot size
- 600–1,400m²
- Soil class
- M
- Median house price
- $4.0M–$8.0M
- Home era
- 1880s–1940s heritage
- Typical price range
- $150,000 – $600,000+
- Typical timeline
- 6–12 months design to handover
- Approval pathway
- CDC for most rear extensions, DA for second-storey
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.
Last updated: 1 April 2026
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Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Northwood 2066. Lane Cove Council regulations and local controls are covered on each page.