Home Extension Builder Liberty Grove — Approved in 60 Days
Liberty Grove 2138 extensions with tight approval timelines. CDC where eligible (~15 days), DA via City of Canada Bay Council in 40–60 days. Construction 12–24 weeks depending on scope.
HIA Member
MBA NSW0476 300 300Quick Answer
A home extension in Liberty Grove costs $150,000–$600,000+. Rear extension from $150K, second-storey addition from $300K. Buildana manages design, City of Canada Bay Council approvals, and construction under one fixed-price contract.
Second-Storey & Rear Additions in Liberty Grove
A home extension in Liberty Grove is shaped by the fact that it is a gated community. The 1990s to 2000s villas and townhouses on 200 to 400m² blocks were built to a single coherent design code, so the honest starting point is usually a targeted addition or an interior rework rather than a wing — most of these homes were not designed to grow outward, and pretending otherwise wastes money.
Where something does make sense, the community's guidelines govern what the external work can be, and I design to them from the first sketch rather than fighting the body corporate later. The 1990s to 2000s fabric is clean, so whatever proceeds stays simple.
At a $1.6M to $2.8M median, work done within the plan protects the estate's premium — the uniform, secure look is what you paid for, and undercutting it costs you at sale.
We build these fixed-price, licence HBL 487805C. Say what you need and the read you get back will be honest.
Buildana manages the complete home extension process in Liberty Grove — 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 Liberty Grove from $150K
- City of Canada Bay Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- M–H — structural engineering included
- 1990s–2000s master-planned-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Concord West (1 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Within the plan, honestly
Liberty Grove's guidelines protect the estate's look, so any addition is designed within them — and I will tell you honestly where an interior rework serves you better than external work.
The security-and-amenity lifestyle is exactly what those controls preserve.
Clean and simple
The 1990s to 2000s fabric is clean, which keeps whatever proceeds simple.
The budget goes into the new space, and all of it is priced into the job from the outset.
Home extension builder in Liberty Grove — key facts
- Suburb
- Liberty Grove, NSW 2138
- Council / LGA
- City of Canada Bay Council (City of Canada Bay)
- Primary zoning
- R3 master-planned
- Typical lot size
- 200–400m²
- Soil class
- M–H
- Median house price
- $1.6M–$2.8M
- Home era
- 1990s–2000s master-planned
- 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) | $54,000 – $130,000 |
| Kitchen/living extension | $140,000 – $320,000 |
| Master suite + ensuite addition | $120,000 – $250,000 |
| Second storey (full or partial) | $250,000 – $500,000 |
| Multi-room ground floor wrap | $320,000 – $540,000 |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
How It Works
From First Call to Final Key
Free consultation at your Liberty Grove home. We inspect the existing structure, check City of Canada Bay Council's controls, measure available space, and discuss what you need. You get a clear scope, budget range, and timeline before committing.
⏱Two design moves are usually on the table: match the existing house so the extension reads as original, or contrast with it so the new section is clearly modern. Both work — choice is aesthetic, and we'll show 3D renders of both before you commit.
⏱CDC (10–15 business days) or DA through City of Canada Bay Council depending on scope. Structural engineering, BASIX, and all documentation prepared and lodged. Construction Certificate obtained.
⏱Construction phase connects new to existing — footings, frame, roof tie-in, waterproofing at junction, internal fit-out and external finish. Staged works minimise disruption to your daily routine in Liberty Grove.
⏱Final inspection focuses on the integration: paint blend, flooring transitions, ceiling height, junction waterproofing, sound transmission. The extension shouldn't feel bolted on — it should feel like the house was always meant to be this size.
⏱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.
Add Space to Your Liberty Grove Home
Free design consultation for Liberty Grove 2138. We'll assess your home, design the extension, and provide a fixed-price quote.
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Other Buildana services in Liberty Grove
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Liberty Grove 2138. City of Canada Bay Council regulations and local controls are covered on each page.