Home Extension Darling Point — Design, Approval, Structural, Build
Full-service extensions in Darling Point 2027: structural survey of existing 1880s–1940s heritage + apartments home, design, Woollahra Municipal Council approval, engineering, weatherproofed construction, matched finish to original dwelling.
HIA Member
MBA NSW0476 300 300Home Extension Builder in Darling Point
A home extension in Darling Point is precision work at one of Sydney's most exclusive addresses. The homes are 1880s to 1940s heritage on 200 to 800m² blocks, and on land this valuable and this tightly controlled, the addition is designed to the centimetre inside the conservation envelope — there is no room for anything approximate.
The oldest fabric gets licensed lead and asbestos handling, party walls are assessed on the attached stock before anything ties in, and the harbour is drawn into the new living wherever the envelope allows a sightline.
At a $5M to $20M-plus median, exactness is simply the standard the address accepts — the scarcity of what changes hands here underwrites every metre you manage to add.
We build these fixed-price, licence HBL 487805C. Get our extension scope, with the heritage position mapped, before you commit.
Buildana manages the complete home extension process in Darling Point — 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 Darling Point from $150K
- Woollahra Municipal Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- M — structural engineering included
- 1880s–1940s heritage + apartments-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Edgecliff (500m) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
The address demands exactness
Darling Point's values enforce precision — additions designed to the centimetre within the conservation envelope, harbour glimpses captured where the design allows, finishes to the address's standard.
The scarcity of the holdings underwrites every metre you add.
Oldest fabric, done exactly
Lead paint joins asbestos in the licensed processes, done properly on fabric that is well over a century old in places.
The party walls on the attached terraces are assessed, with all of it priced into the job from the outset.
Home extension builder in Darling Point — key facts
- Suburb
- Darling Point, NSW 2027
- Council / LGA
- Woollahra Municipal Council (Woollahra)
- Primary zoning
- R2 Low
- Typical lot size
- 200–800m²
- Soil class
- M
- Median house price
- $5M–$20M+
- Home era
- 1880s–1940s heritage + 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.
Quality Promise
Our Darling Point 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. Darling Point homes from the 1880s–1940s heritage + 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.
⏱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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Last updated: 1 April 2026
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Free design consultation for Darling Point 2027. We'll assess your home, design the extension, and provide a fixed-price quote.
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Other Buildana services in Darling Point
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Darling Point 2027. Woollahra Municipal Council regulations and local controls are covered on each page.