Home Extension Builder Riverstone — More Space, Same Address
Fixed-price home extensions in Riverstone 2765. Ground floor, second storey and rear additions. Blacktown City Council approvals managed. Free design consultation.
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MBA NSW0476 300 300Quick Answer
A home extension in Riverstone 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 Riverstone
Riverstone homeowners with Mixed-era properties are increasingly turning to home extensions to gain space without the disruption of a full move. With typical lots of 300–600m², most Riverstone properties can accommodate ground-floor or second-storey extensions under Blacktown City Council's planning controls. Buildana manages feasibility, design, approvals, and construction for Riverstone extension projects under one fixed-price contract.
Buildana manages the complete home extension process in Riverstone — 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 Riverstone from $150K
- Blacktown City Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- Class M–H soil — structural engineering included
- Mixed-era homes assessed for extension suitability
- Connect new to existing — seamless finish
- 6-year structural warranty
- Free design consultation — near Riverstone station
Why Extend Your Home in Riverstone?
Riverstone has its own train station and is undergoing significant growth with new release areas. A mix of heritage town centre and new residential development.
Building costs in Riverstone sit below the Sydney metro average, making it an attractive location for value-conscious homeowners and investors. Typical residential lots of 300–600m² in Riverstone (2765) provide strong building envelopes across a range of project types. Riverstone station provides direct rail access. R2 Low Density zoning across Riverstone supports quality detached homes with generous setbacks and outdoor living. Class M–H reactive soil is common in Riverstone — Buildana includes engineered slab design as standard. Median house prices of $800K–$1.05M mean land value supports a quality build investment, with granny flat rental potential of $370–$490/week.
Home extensions in Blacktown LGA suit the area's 1970s–1990s housing stock, which typically has good structural foundations and spacious layouts. Common projects include kitchen-living extensions, covered alfresco areas, and second-storey additions in suburbs like Seven Hills, Kings Langley, and Quakers Hill. Council requires DA for extensions varying by scope. Buildana manages structural assessment through to handover.
Planning Controls — Blacktown City Council
Blacktown LEP 2015 & DCP Section 6. R2 zones: FSR 0.5:1, building height 9m, front setback 4.5m–6m (varies by lot width), landscaped area 30%. CDC-eligible designs can fast-track approval to 10–15 business days.
Have a question about your project?
Talk to our team — free site assessment and fixed-price quote.
How It Works
From First Call to Final Key
We assess your Riverstone home — existing structure, block size (300–600m²), R2 Low Density zoning, setbacks, FSR, and your space requirements. You'll know what's achievable before spending on detailed design.
⏱Extension designed to complement your existing home — floor plan, elevations, structural connection details. Blacktown City Council compliance built into the design from day one.
⏱DA through Blacktown City Council (40–90 days) or CDC (10–15 business days). Construction Certificate obtained before works commence. Buildana manages all submissions.
⏱Extension built with minimal disruption — new footings (Class M–H soil), frame, connection to existing dwelling, fit-out. Weekly updates from your project manager.
⏱Defect-free handover with seamless connection between old and new. 6-year structural warranty. Your Riverstone home — with the space you need.
⏱Quality Promise
Every Buildana home extension in Riverstone is delivered under a fixed-price contract — from design consultation through to defect-free handover.
Our Team
Oliver Alameri
Founder / Director / Builder
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
Cost Guide
| Item | Estimated Range |
|---|---|
| Rear ground-floor extension | $140,000 – $280,000 |
| Second-storey addition | $280,000 – $470,000 |
| Large multi-room extension | $370,000 – $560,000+ |
| Structural engineering | $3,000 – $7,000 |
| Council contributions | $2,000 – $14,000 |
| Temporary weatherproofing | $2,000 – $5,000 |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
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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
Buildana builds across greater Sydney — with deep roots in Western Sydney's Fairfield, Liverpool, Cumberland, Canterbury-Bankstown, and Blacktown LGAs.
Last updated: 1 April 2026
Extend Your Home in Riverstone
Free design consultation for Riverstone 2765. We'll assess your home, design the extension, and provide a fixed-price quote.
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