Licensed Home Extension Builder Lavender Bay
NSW licensed extension specialist. Lavender Bay 2060 extensions on 1880s–1940s heritage-era homes require structural sign-off, Class M footings, and matched connection — we engineer and document properly.
HIA Member
MBA NSW0476 300 300Home Extension Builder in Lavender Bay
A home extension in Lavender Bay is designed around one thing: the view. The Bridge and Opera House sit right across the water, and that outlook is the entire reason these homes are worth what they are — so the addition is planned to capture it, working within the heritage conservation envelope on tight 200 to 450m² blocks.
The heritage position leads the design, the harbour fall brings engineering in early, and the oldest fabric gets licensed lead and asbestos handling. On blocks this size precision does the work that floor area cannot.
At a $3.2M to $6.0M median, an addition that finally earns the view changes what the home is worth — the outlook is already yours, and this is about building the house that deserves it.
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 Lavender Bay — 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 Lavender Bay from $150K
- North Sydney 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 North Sydney (1 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
The view is the brief
Lavender Bay homes exist for the outlook, and the addition is built to capture it — levels and openings designed within the HCA envelope to draw the Bridge and the water into the new living.
On 200 to 450m² blocks, precision replaces size as the thing that makes it work.
Fall and fabric handled
The harbour fall brings engineering in early rather than as an afterthought.
The pre-war fabric brings lead paint as well as asbestos, both handled under licence, all priced into the job from the outset.
Home extension builder in Lavender Bay — key facts
- Suburb
- Lavender Bay, NSW 2060
- Council / LGA
- North Sydney Council (North Sydney)
- Primary zoning
- R3 Medium
- Typical lot size
- 200–450m²
- Soil class
- M
- Median house price
- $3.2M–$6.0M
- 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.
Quality Promise
Our Lavender Bay home extensions connect old-to-new cleanly. Matched brickwork, tied roofline, no awkward transitions.
How It Works
From First Call to Final Key
The first job on an extension is finding out what you're extending onto. Lavender Bay homes from the 1880s–1940s heritage 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.
⏱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
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Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Lavender Bay 2060. North Sydney Council regulations and local controls are covered on each page.