Home Extension Builder Bexley — Approved in 60 Days
Bexley 2207 extensions with tight approval timelines. CDC where eligible (~15 days), DA via Bayside Council in 40–60 days. Construction 12–24 weeks depending on scope.
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MBA NSW0476 300 300Quick Answer
A home extension in Bexley costs $150,000–$600,000+. Rear extension from $150K, second-storey addition from $300K. Buildana manages design, Bayside Council approvals, and construction under one fixed-price contract.
Second-Storey & Rear Additions in Bexley
A home extension in Bexley works with the streetscape, not against it. The Federation and inter-war homes sit on 450 to 700m² blocks, and on the conservation streets the frontage carries the character — so the family space goes behind it, out of sight from the kerb, where it can be as generous as the block allows.
Off the heritage pockets the era read still steers the plan, and on the Forest Road R3 corridor I check the zoning before anyone commits to a big spend that redevelopment might undercut. Pre-war fabric means lead paint alongside the asbestos, both handled under licence.
At a $1.6M to $2.4M median the wing beats the friction and stamp duty of upsizing inside the district.
We build these fixed-price, licence HBL 487805C. Get our extension scope, with heritage and zoning checked, before you commit.
Buildana manages the complete home extension process in Bexley — 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 Bexley from $150K
- Bayside Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- M — structural engineering included
- 1910s–1960s-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Bexley North (T4, 1 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
The frontage stays, the space goes behind
On Bexley's conservation streets the kerb-side character is what gets protected, so the wing lands behind it — the street reads unchanged while the family gets the room.
Off the pockets, the era of the house sets how far and how freely the addition can push.
Zoning and pre-war fabric
On the Forest Road R3 I check the redevelopment position first, so a big renovation spend is not stranded under a site worth more as land.
Lead paint rides with the asbestos in anything pre-war — licensed removal, priced in from the outset.
Home extension builder in Bexley — key facts
- Suburb
- Bexley, NSW 2207
- Council / LGA
- Bayside Council (Bayside)
- Primary zoning
- R2 Low
- Typical lot size
- 450–700m²
- Soil class
- M
- Median house price
- $1.6M–$2.4M
- Home era
- 1910s–1960s
- 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 |
|---|---|
| Single-room addition (bedroom/study) | $58,000 – $140,000 |
| Kitchen/living extension | $150,000 – $340,000 |
| Master suite + ensuite addition | $130,000 – $270,000 |
| Second storey (full or partial) | $270,000 – $530,000 |
| Multi-room ground floor wrap | $340,000 – $580,000 |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
How It Works
From First Call to Final Key
On-site assessment of your 1910s–1960s-era home in Bexley. We check structural condition, block dimensions (450–700m²), setback availability, and Bayside 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 Bayside 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 Bexley home now has the space your family needs.
⏱Our Team
Oliver Alameri
Founder / Director / Builder · MPropDev · PhD Student
Ahmad Alameri
Accounts Manager
Claire Wendell
Project Manager
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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
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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.
Add Space to Your Bexley Home
Free design consultation for Bexley 2207. We'll assess your home, design the extension, and provide a fixed-price quote.
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Other Buildana services in Bexley
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Bexley 2207. Bayside Council regulations and local controls are covered on each page.