Home Extension Builder Moorebank — Approved in 60 Days
Moorebank 2170 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 Moorebank 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.
Moorebank Home Extensions — Fixed Price
A home extension in Moorebank spends generous blocks — 550 to 750m² under 1970s-90s stock, with the rear depth for the full family wing and the M5 keeping the commute honest.
The Class H clay is the engineering headline: footing junctions designed so the new wing moves with the house. On the river-side blocks, the flood mapping is checked first.
At the $1.0M to $1.3M median, the staying maths beats upsizing clearly.
We build these fixed-price, licence HBL 487805C. Get our extension scope, with the junctions engineered, before you commit.
Buildana manages the complete home extension process in Moorebank — 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 Moorebank from $150K
- Liverpool City Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- Class H soil — structural engineering included
- 1970s–1990s-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Holsworthy (2 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Generous blocks, real wings
Moorebank's 550 to 750m² blocks take the full family addition — second living, bedrooms, alfresco — with the established streets and motorway access keeping life practical through the build.
On the Georges River side, the flood mapping is checked before the design is set.
The Class H junction
The clay moves with moisture, so the new footings are engineered to move with the old — the junction detail that separates clean extensions from cracked ones.
That junction detail is a priced line in the scope.
Home extension builder in Moorebank — key facts
- Suburb
- Moorebank, NSW 2170
- Council / LGA
- Liverpool City Council (Liverpool City)
- Primary zoning
- R2 Low Density
- Typical lot size
- 550–750m²
- Soil class
- Class H
- Median house price
- $1.0M–$1.3M
- Home era
- 1970s–1990s
- 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
Real Project
Rear Extension + Renovation — Moorebank
1980s brick home extended by 55sqm at the rear — new open-plan kitchen/living/dining opening onto a covered alfresco. Existing bedrooms renovated with new flooring and built-in robes. New main bathroom and ensuite.
Completed in 14 weeks. Total cost $320,000. Added estimated $180,000+ to property value.
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. Extension feasibility comes down to two things: what the existing structure can carry, and what Liverpool City Council will let you build. We assess both at the consultation — no point designing for a second storey if the slab can't take the load. Extension designed to integrate with your existing Moorebank home — matching roof lines, materials, and flow between old and new sections. Floor plans, elevations, and 3D renders.
⏱The Moorebank construction phase. Fixed price, programmed, supervised. All approval documentation prepared: structural drawings, BASIX, shadow analysis, stormwater, and statement of environmental effects (if DA). Lodged and managed through to Construction Certificate. Extension construction takes 3–6 months on average. Footings excavated and poured to match existing depth on Class H soil, frame stand, roof tie-in (most weather-critical phase), lock-up, then internal fit-out at the same standard as the existing house.
⏱The job isn't done when the site's clean; it's done when you have keys, certificates and warranties. Defect-free inspection, OC issued, 6-year warranty on all new work. Junction between old and new sections waterproofed and warranted. Maintenance guide covers care of new and existing areas.
⏱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
We Build Across Sydney
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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Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Moorebank 2170. Liverpool City Council regulations and local controls are covered on each page.