Licensed Home Extension Builder Bondi
NSW licensed extension specialist. Bondi 2026 extensions on 1900s–1940s-era homes require structural sign-off, Class M footings, and matched connection — we engineer and document properly.
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MBA NSW0476 300 300Quick Answer
A home extension in Bondi costs $150,000–$600,000+. Rear extension from $150K, second-storey addition from $300K. Buildana manages design, Waverley Council approvals, and construction under one fixed-price contract.
Bondi Home Extensions & Additions
A home extension in Bondi is precision work on tight blocks a short walk from the sand. The Federation and inter-war homes sit on 250 to 500m², so the honest question is up or back — up on the engineered early brick for light and beach glimpses, or backwards with courtyard discipline where the block has depth. I run both against your actual walls before you choose.
The early brick takes a properly engineered storey once the walls are checked for it, the heritage streets keep their frontages, and this close to the water salt-aware materials are standard rather than an upgrade. The pre-war brick carries lead paint and asbestos, both stripped under licence.
At a $2.8M to $5M median, an addition beats trading out of the beach orbit — the walk to the sand is the whole reason to stay, and building keeps it.
We build these fixed-price, licence HBL 487805C. Ask us to measure what your block — and your walls — can hold.
Buildana manages the complete home extension process in Bondi — 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 Bondi from $150K
- Waverley Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- M — structural engineering included
- 1900s–1940s-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Bondi Junction (2 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Up or back, designed hard
Bondi's tight blocks force the choice — up on the engineered early brick for light and glimpses, or backwards with courtyard discipline — and I run both numbers on your walls before you choose.
The beach orbit is exactly what building rather than moving preserves.
Salt and fabric handled
Salt-aware materials are standard this close to the water, not an optional extra.
Lead paint and asbestos both get the licensed pre-war treatment, and all of it is priced into the job from the outset.
Home extension builder in Bondi — key facts
- Suburb
- Bondi, NSW 2026
- Council / LGA
- Waverley Council (Waverley)
- Primary zoning
- R2 Low
- Typical lot size
- 250–500m²
- Soil class
- M
- Median house price
- $2.8M–$5M
- Home era
- 1900s–1940s
- 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.
Cost Guide
| Item | Estimated Range |
|---|---|
| Simple rear extension (single wall removal, no roof change) | $110,000 – $240,000 |
| Moderate extension (multiple openings, roof extended) | $240,000 – $460,000 |
| Complex extension (structural steel portals, re-roofing) | $460,000 – $730,000 |
| Second-storey tie-in (existing house re-engineered) | $430,000 – $790,000 |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
How It Works
From First Call to Final Key
The first job on an extension is finding out what you're extending onto. Bondi homes from the 1900s–1940s 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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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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