Licensed Home Extension Builder South Granville
NSW licensed extension specialist. South Granville 2142 extensions on 1950s–1970s-era homes require structural sign-off, Class M footings, and matched connection — we engineer and document properly.
HIA Member
MBA NSW0476 300 300Second-Storey & Rear Additions in South Granville
A home extension in South Granville suits people who like the quiet streets and do not want to trade them for a bigger mortgage somewhere louder. The housing is post-war, 1950s to 1970s, on standard blocks, and the pull to Parramatta Road and everything past it means daily life keeps ticking along even while the build is on. Growing the house beats starting over in a suburb you would only be swapping for the space.
What decides the job is the condition of the original home. Sound brick takes a wing without drama. Tired fibro gets a proper rebuild comparison, because sometimes patching an old shell to hang new rooms off it costs more than it should. Where fibro turns up in the work, it is removed under licence before we build.
At a $1.0M to $1.3M median the money stays in your favour when the house is worth the spend. The footings under the new part are engineered to your actual ground so the addition does not pull away from the original.
We build these fixed-price, licence HBL 487805C. Ask us to measure what your block can hold.
Buildana manages the complete home extension process in South Granville — 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 South Granville from $150K
- Cumberland City Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- Class M soil — structural engineering included
- 1950s–1970s-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Granville (1 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Grow it, keep the street
The appeal of South Granville is the calm of it, and an extension protects that — you add the bedrooms and living space without giving up the address. The access out to Parramatta Road keeps deliveries and daily comings and goings simple through the build.
I read the house honestly first. Good brick earns the wing; a fibro home that has had enough gets the rebuild numbers laid out plainly so you can make the call on real figures.
Fibro and footings sorted before framing
Any fibro the work uncovers comes out under a licensed strip-out with a clearance certificate, done properly rather than worked around.
The footings are sized to the ground under your slab, and both jobs are inside the fixed price from day one — no line items appearing later.
Home extension builder in South Granville — key facts
- Suburb
- South Granville, NSW 2142
- Council / LGA
- Cumberland City Council (Cumberland City)
- Primary zoning
- R2 Low Density & R3 Medium Density
- Typical lot size
- 450–650m²
- Soil class
- Class M
- Median house price
- $1.0M–$1.3M
- Home era
- 1950s–1970s
- 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
South Granville home extension specialists: we work on your home while you live in it, weatherproof the site nightly, finish clean.
How It Works
From First Call to Final Key
Everything that has to be right before we touch the ground. Walk through your South Granville home with our designer and structural engineer. We measure, photograph, and check the bones — footings, frame condition, roof structure. The cost estimate that follows is grounded in what we found, not a generic per-m² number. Our designer works with your existing home's layout — connecting new living areas to existing rooms, matching materials and roof pitch, and maximising natural light. You approve floor plans and 3D renders before we proceed.
⏱The South Granville construction phase. Fixed price, programmed, supervised. Most rear extensions in South Granville qualify for CDC — cleaner, faster, no neighbour notification. Second-storey additions typically need DA through Cumberland City Council because of overshadowing and privacy assessments. We choose based on your design, not on what's easier to lodge. Extension built from new footings to completion — connecting structurally to your existing home. Class M soil design managed. Temporary weatherproofing maintains liveability where possible.
⏱The job isn't done when the site's clean; it's done when you have keys, certificates and warranties. Walk through the completed extension, confirm finishes, collect your OC. Six-year structural warranty covers all new work including the junction with your existing home. Maintenance guide provided.
⏱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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Other Buildana services in South Granville
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in South Granville 2142. Cumberland City Council regulations and local controls are covered on each page.