Licensed Home Extension Builder Old Toongabbie
NSW licensed extension specialist. Old Toongabbie 2146 extensions on 1960s–1980s-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 Old Toongabbie costs $150,000–$600,000+. Rear extension from $150K, second-storey addition from $300K. Buildana manages design, City of Parramatta Council approvals, and construction under one fixed-price contract.
Second-Storey & Rear Additions in Old Toongabbie
A home extension in Old Toongabbie makes sense the moment you price moving. The established 1960s to 1980s brick homes here sit on 500 to 750m² R2 lots with genuine backyard depth, and at a $1.3M to $1.8M median the stamp duty and selling costs of upsizing locally would fund a good part of a rear addition. It is a quiet pocket between Toongabbie and Winston Hills that owners tend to stay in.
The brick stock extends best rearward. That era takes a ground-floor addition cleanly and needs steel to go up, so out is the sensible direction, and the block depth makes it easy. The Wianamatta Shale soil behaves, so footings stay routine, and on the larger blocks there can be a duplex or dual-occupancy angle worth checking against a single-home extension.
What I would check first on your Old Toongabbie house: the frame type, the rear yard depth, and whether a larger block opens a duplex option. Those set the plan.
We build these fixed-price, licence HBL 487805C. Get a fixed-price scope before you talk to an agent.
Buildana manages the complete home extension process in Old Toongabbie — 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 Old Toongabbie from $150K
- City of Parramatta Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- M — structural engineering included
- 1960s–1980s-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Toongabbie (T1, 2 km) / bus to Parramatta station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Price moving, then extend
The established 1960s to 1980s brick homes sit on 500 to 750m² R2 lots with genuine backyard depth, and at a $1.3M to $1.8M median, upsizing locally would fund a good part of a rear addition in friction alone.
It is a quiet pocket between Toongabbie and Winston Hills that owners tend to settle into.
Out, with a duplex angle
That era takes a ground-floor addition cleanly and wants steel to go up, so out is the sensible direction, and the block depth keeps it easy. The Wianamatta Shale soil keeps footings routine.
On the larger blocks there can be a duplex or dual-occupancy angle worth checking against a single-home extension.
Home extension builder in Old Toongabbie — key facts
- Suburb
- Old Toongabbie, NSW 2146
- Council / LGA
- City of Parramatta Council (City of Parramatta)
- Primary zoning
- R2 Low
- Typical lot size
- 500–750m²
- Soil class
- M
- Median house price
- $1.3M–$1.8M
- Home era
- 1960s–1980s
- 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
The first job on an extension is finding out what you're extending onto. Old Toongabbie homes from the 1960s–1980s 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.
⏱Quality Promise
Our Old Toongabbie home extensions connect old-to-new cleanly. Matched brickwork, tied roofline, no awkward transitions.
Cost Guide
| Item | Estimated Range |
|---|---|
| Simple rear extension (single wall removal, no roof change) | $87,000 – $190,000 |
| Moderate extension (multiple openings, roof extended) | $190,000 – $370,000 |
| Complex extension (structural steel portals, re-roofing) | $370,000 – $580,000 |
| Second-storey tie-in (existing house re-engineered) | $340,000 – $630,000 |
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
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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
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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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Old Toongabbie Extension — Free Consultation
Free design consultation for Old Toongabbie 2146. We'll assess your home, design the extension, and provide a fixed-price quote.
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Other Buildana services in Old Toongabbie
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Old Toongabbie 2146. City of Parramatta Council regulations and local controls are covered on each page.