Edgecliff Home Extension Builder — Live In, Build On
Buildana extends homes across Edgecliff 2027 while you stay in place. 1880s–1960s + apartments-era structure, Woollahra Municipal Council rules, weatherproofing during build — all managed locally from Fairfield.
HIA Member
MBA NSW0476 300 300Quick Answer
A home extension in Edgecliff costs $150,000–$600,000+. Rear extension from $150K, second-storey addition from $300K. Buildana manages design, Woollahra Municipal Council approvals, and construction under one fixed-price contract.
Second-Storey & Rear Additions in Edgecliff
A home extension in Edgecliff turns on which side of the station you sit. Around the interchange the R4/B4 zoning carries development value the addition has to be weighed against; step onto the heritage side streets and it is terrace territory that extends with confidence. So the first move is checking the zoning, not drawing a wing.
On those side streets the work runs backwards and precise — rear reworks opened to courtyards, designed to the centimetre, with the station and the hub's convenience on foot. Party walls are assessed before any structural move and the oldest fabric is handled under licence.
At a $2.5M to $5M median, an addition on the quiet side streets is the natural play — you keep the walk-everywhere position and add the space the terrace never had.
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 Edgecliff — 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 Edgecliff from $150K
- Woollahra Municipal Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- M — structural engineering included
- 1880s–1960s + apartments-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Edgecliff (in suburb) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Spine or side street
Near the station the R4/B4 value is checked before any addition — while the heritage side streets extend with confidence: rear reworks opened to courtyards, designed to the centimetre, the hub's convenience on foot.
Where your block actually sits decides the spend, and I read it honestly.
Terrace discipline
Party walls are assessed before any structural move, so nothing about the neighbour blindsides the build.
Lead paint and asbestos are each run as licensed processes, and all of it is priced into the job from the outset.
Home extension builder in Edgecliff — key facts
- Suburb
- Edgecliff, NSW 2027
- Council / LGA
- Woollahra Municipal Council (Woollahra)
- Primary zoning
- R3/R4/B4 mixed
- Typical lot size
- 200–500m²
- Soil class
- M
- Median house price
- $2.5M–$5M
- Home era
- 1880s–1960s + 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
On-site assessment of your 1880s–1960s + apartments-era home in Edgecliff. We check structural condition, block dimensions (200–500m²), setback availability, and Woollahra Municipal Council's DCP requirements. Written feasibility and cost estimate provided.
⏱Designing an extension is half about the new space and half about how it joins the old one. Doorway position, ceiling height transition, floor level matching, light wells — the junction makes or breaks how the finished home feels.
⏱We lodge your extension approval — CDC for eligible designs or DA through Woollahra Municipal Council. Full documentation including structural engineering for Class M soil, BASIX, and shadow diagrams. CC issued before works start.
⏱For ground-floor rear extensions you usually stay in the house during the build, with temporary weatherproofing at the junction wall until the new section is locked up. Second-storey additions need a 4–8 week relocation during the roof-off and frame-up phase.
⏱Final inspection, Occupation Certificate, 6-year structural warranty. Your Edgecliff home now has the space your family needs.
⏱Quality Promise
Our Edgecliff home extensions connect old-to-new cleanly. Matched brickwork, tied roofline, no awkward transitions.
Cost Guide
| Item | Estimated Range |
|---|---|
| Single-room addition (bedroom/study) | $72,000 – $170,000 |
| Kitchen/living extension | $180,000 – $420,000 |
| Master suite + ensuite addition | $160,000 – $340,000 |
| Second storey (full or partial) | $340,000 – $660,000 |
| Multi-room ground floor wrap | $420,000 – $720,000 |
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
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
Edgecliff Extension — Free Consultation
Free design consultation for Edgecliff 2027. We'll assess your home, design the extension, and provide a fixed-price quote.
Start Your ProjectMore in Edgecliff
Other Buildana services in Edgecliff
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Edgecliff 2027. Woollahra Municipal Council regulations and local controls are covered on each page.