Home Extension Builder Glendenning — From $150K Fixed Price
Fixed-price home extensions in Glendenning 2761. Rear extension $150K–$300K, second storey $300K–$500K. Blacktown City Council approvals managed. Free site consult.
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MBA NSW0476 300 300Quick Answer
A home extension in Glendenning costs $150,000–$600,000+. Rear extension from $150K, second-storey addition from $300K. Buildana manages design, Blacktown City Council approvals, and construction under one fixed-price contract.
Home Extension Builder in Glendenning
A home extension in Glendenning is a straightforward numbers call. The 1990s homes here sit on standard blocks with room out the back, and at an $800K to $1.0M median the cost of selling, buying bigger and paying stamp duty would swallow most of a decent rear addition. Add the family room and bedroom, keep the school and the parks, skip the exit fees.
The stock is honest brick veneer that extends cleanly at ground level and needs steel to go up, so out is the sensible direction on these blocks. There are no heritage overlays and no exotic soil regimes for most of the suburb, which keeps the build predictable. Quakers Hill station is a short drive, and the local shops anchor a settled family pocket.
What I would check first on your Glendenning house: the frame and the rear yard depth. Neither heritage nor difficult ground complicates it, so the scope stays clean.
We build these fixed-price, licence HBL 487805C. Compare our quote against an agent's appraisal and decide from there.
Buildana manages the complete home extension process in Glendenning — 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 Glendenning from $150K
- Blacktown City Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- Class M–H soil — structural engineering included
- 1990s-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Quakers Hill (2 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Rooms beat exit fees
The 1990s homes here sit on standard blocks with room out the back, and at an $800K to $1.0M median, selling and buying bigger would swallow most of a rear addition in stamp duty and fees.
Add the family room and bedroom, keep the school and the parks, and skip the friction of moving.
Predictable and clean
The stock is honest brick veneer that extends cleanly at ground level and needs steel to go up, so out is the sensible direction on these blocks.
There are no heritage overlays or exotic soil regimes for most of the suburb, which keeps the build predictable from quote to handover.
Home extension builder in Glendenning — key facts
- Suburb
- Glendenning, NSW 2761
- Council / LGA
- Blacktown City Council (Blacktown City)
- Primary zoning
- R2 Low Density
- Typical lot size
- 550–700m²
- Soil class
- Class M–H
- Median house price
- $800K–$1.0M
- Home era
- 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
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) | $56,000 – $130,000 |
| Kitchen/living extension | $140,000 – $330,000 |
| Master suite + ensuite addition | $120,000 – $260,000 |
| Second storey (full or partial) | $260,000 – $510,000 |
| Multi-room ground floor wrap | $330,000 – $560,000 |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
How It Works
From First Call to Final Key
We assess your Glendenning home — existing structure, block size (550–700m²), R2 Low 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 Glendenning home's streetscape. Multiple design options presented.
⏱Documentation pack covers structural engineering for the new footings sized to match existing depths on Class M–H 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 M–H soil, structural connection to existing home, frame, fit-out, and finishes. Weekly updates from your project manager.
⏱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
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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Free design consultation for Glendenning 2761. We'll assess your home, design the extension, and provide a fixed-price quote.
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Other Buildana services in Glendenning
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Glendenning 2761. Blacktown City Council regulations and local controls are covered on each page.