Lane Cove North Home Extension Builder — Live In, Build On
Buildana extends homes across Lane Cove North 2066 while you stay in place. 1900s–1970s + apartments-era structure, Lane Cove Council rules, weatherproofing during build — all managed locally from Fairfield.
HIA Member
MBA NSW0476 300 300Quick Answer
A home extension in Lane Cove North costs $150,000–$600,000+. Rear extension from $150K, second-storey addition from $300K. Buildana manages design, Lane Cove Council approvals, and construction under one fixed-price contract.
Lane Cove North Home Extensions & Additions
A home extension in Lane Cove North now starts with the map. The Metro TOD overlay and the R3/R4 corridors along Mowbray Road put real development value under part of the suburb, so the first thing I do is check whether your block sits in one of those — because on some of them the land question outweighs the wing. On the wider streets beyond, it is a straightforward era read.
Federation frontages keep their character with the wing behind them; post-war stock extends more freely. Where the ground falls toward the river the clay turns, so those footing junctions are engineered to move with the house, and pre-war fabric sees its lead and asbestos cleared under licence.
At a $2.5M to $4.2M median, an addition beats the cost of upsizing out of the village orbit — the walkable strip and the schools are what you keep by building.
We build these fixed-price, licence HBL 487805C. Get our extension scope, with the zoning checked, before you commit.
Buildana manages the complete home extension process in Lane Cove North — 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 Lane Cove North from $150K
- Lane Cove Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- M — structural engineering included
- 1900s–1970s + apartments-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Artarmon (1.5 km) / Crows Nest Metro 2024 station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Map first, wing second
The TOD overlay and the R3/R4 corridors changed the maths for part of Lane Cove North, so they are checked before any addition dollar. Beyond them, the mixed-era stock extends confidently on the era read.
The village orbit holds every metre you add.
Era and ground handled
Lead paint joins asbestos on the pre-war fabric, handled under licence.
Where the ground falls toward the river the clay junctions are engineered, and all of it is priced into the job from the outset.
Home extension builder in Lane Cove North — key facts
- Suburb
- Lane Cove North, NSW 2066
- Council / LGA
- Lane Cove Council (Lane Cove)
- Primary zoning
- R2 Low Density
- Typical lot size
- 500–800m²
- Soil class
- M
- Median house price
- $2.5M–$4.2M
- Home era
- 1900s–1970s + apartments
- 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.
How It Works
From First Call to Final Key
The first job on an extension is finding out what you're extending onto. Lane Cove North homes from the 1900s–1970s + apartments were built to different standards — we open walls, check footings, verify load paths. The existing house has to carry the new work.
⏱Design follows the existing roof. A bad extension looks like a bolt-on; a good one reads as original. Matched brickwork or contrasting render (whichever the architecture calls for), tied-in roofline, continuous flooring where it should be continuous.
⏱Construction happens while you live in the house. That means weatherproofing every night, staging the works so kitchens and bathrooms don't disappear on the same week, and keeping the site clean of debris that doesn't belong in a family home.
⏱Finish is seamless. Paint match, floor match, roofline match, brick match where possible. The only way to tell the extension is new is the date on the plans.
⏱Quality Promise
Lane Cove North home extension specialists: we work on your home while you live in it, weatherproof the site nightly, finish clean.
Cost Guide
| Item | Estimated Range |
|---|---|
| Simple rear extension (single wall removal, no roof change) | $101,000 – $220,000 |
| Moderate extension (multiple openings, roof extended) | $220,000 – $430,000 |
| Complex extension (structural steel portals, re-roofing) | $430,000 – $670,000 |
| Second-storey tie-in (existing house re-engineered) | $390,000 – $730,000 |
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
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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
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Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Lane Cove North 2066. Lane Cove Council regulations and local controls are covered on each page.