Home Extension Builder Edmondson Park — Approved in 60 Days
Edmondson Park 2174 extensions with tight approval timelines. CDC where eligible (~15 days), DA via Liverpool City 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 Edmondson Park costs $150,000–$600,000+. Rear extension from $150K, second-storey addition from $300K. Buildana manages design, Liverpool City Council approvals, and construction under one fixed-price contract.
Second-Storey & Rear Additions in Edmondson Park
A home extension in Edmondson Park is a specific fix for a specific problem: undersized lots. This is one of Sydney's newest master-planned suburbs, mostly 2010s-onward homes, so the building is young, but many sit on 300 to 450m² blocks that were tight from day one. When a growing family outgrows a compact new house, a well-planned rear addition is often the honest answer where the footprint simply cannot stretch any further.
Two things shape the build. This is Liverpool LGA on H to E class reactive clay, so new footings must be engineered to move with the existing slab rather than crack against it. And with blocks this small, the addition has to be efficient, so every square metre earns its place. The Edmondson Park station and Ed Square town centre are exactly why families would rather stay and build than leave a growing precinct.
What I would check first on your Edmondson Park house: whether the footprint genuinely needs extending, the reactive-clay footing junction, and how much the compact yard can take. Those decide the scope.
We build these fixed-price, licence HBL 487805C. Ask us for the honest read before you commit either way.
Buildana manages the complete home extension process in Edmondson Park — 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 Edmondson Park from $150K
- Liverpool City Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- Class H–E soil — structural engineering included
- 2010s–present-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Edmondson Park station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Young houses, tight lots
This is one of Sydney's newest master-planned suburbs, mostly 2010s-onward homes, so the building is young, but many sit on 300 to 450m² blocks that were tight from day one.
When a growing family outgrows a compact new house, a well-planned rear addition is often the honest answer where the footprint cannot stretch further.
Clay and efficiency
This is Liverpool LGA on H to E class reactive clay, so new footings must be engineered to move with the existing slab rather than crack against it.
With blocks this small, the addition has to be efficient. The station and Ed Square are why families stay and build rather than leave a growing precinct.
Home extension builder in Edmondson Park — key facts
- Suburb
- Edmondson Park, NSW 2174
- Council / LGA
- Liverpool City Council (Liverpool City)
- Primary zoning
- R2 Low Density & R3 Medium Density
- Typical lot size
- 300–450m²
- Soil class
- Class H–E
- Median house price
- $850K–$1.1M
- Home era
- 2010s–present
- 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 |
|---|---|
| Small rear extension (up to 30m²) | $87,000 – $170,000 |
| Medium rear/side extension (30–60m²) | $170,000 – $310,000 |
| Large ground-floor extension (60–100m²) | $310,000 – $490,000 |
| Second-storey addition (60–120m²) | $270,000 – $530,000 |
| Wrap-around (ground + 1st floor) | $490,000+ |
| Structural engineering & tie-in | Included |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
How It Works
From First Call to Final Key
Everything that has to be right before we touch the ground. We assess your Edmondson Park home — existing structure, block size (300–450m²), R2 Low Density & R3 Medium Density zoning, setbacks, FSR, and your space requirements. You'll know what's achievable before spending on detailed design. Design phase covers the extension layout, junction with existing structure, window and door placement, and external finish to match your Edmondson Park home's streetscape. Multiple design options presented.
⏱The Edmondson Park construction phase. Fixed price, programmed, supervised. Documentation pack covers structural engineering for the new footings sized to match existing depths on Class H–E soil, BASIX 2025 compliance, shadow diagrams to neighbours' POS, hydraulic, and detailed sections through the wall-tie junction. Approval-grade, not concept-grade. Fixed-price construction of your extension. New footings engineered for Class H–E soil, structural connection to existing home, frame, fit-out, and finishes. Weekly updates from your project manager.
⏱The job isn't done when the site's clean; it's done when you have keys, certificates and warranties. Handover documentation covers the new work specifically — OC for the extension, structural certs, BASIX certificate updates, and warranty for the new section plus the junction detailing. Existing house remains under whatever warranty position applied before.
⏱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.
Extend Your Home in Edmondson Park
Free design consultation for Edmondson Park 2174. We'll assess your home, design the extension, and provide a fixed-price quote.
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Other Buildana services in Edmondson Park
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Edmondson Park 2174. Liverpool City Council regulations and local controls are covered on each page.