Pricing Guide

How Much Does a House Extension Cost in Ealing?

Extension builder costs in Ealing start from £35,000. Get realistic price ranges for house extensions and find local builders via BizHub365.

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House extensions in Ealing are a popular way to add space and value to your home, but costs vary significantly based on the type of build, materials, and complexity of the project. As a London location, Ealing typically commands higher extension costs than the national average due to local labour rates, material availability, and planning requirements. BizHub365 connects you with experienced local extension builders who understand Ealing's specific challenges and can provide accurate quotes tailored to your project.

Extension Builder Prices in Ealing

Service Typical Cost Unit
Single-storey rear extension (20 sq m) £35000 – £55000 per project
Single-storey side extension (15 sq m) £28000 – £45000 per project
Two-storey extension (30 sq m) £70000 – £110000 per project
Loft conversion (35 sq m, with velux windows) £40000 – £65000 per project
Basement excavation and conversion (40 sq m) £60000 – £95000 per project
Conservatory build (15 sq m, brick/glass) £18000 – £32000 per project
Building regulations approval and inspection £400 – £800 per application

Prices are indicative averages for Ealing. Actual quotes will vary based on job specifics.

What Affects the Cost?

Extension costs in Ealing are driven by several key factors: site access and terrain (many Ealing properties have limited garden space), existing building condition, and whether structural work is required. Material choices significantly impact the final cost—brick matching, high-performance glazing, and insulation standards all add expense. Planning permission complexity varies; conservation areas and listed buildings require specialist input. Labour availability during peak seasons (spring and summer) can increase costs by 10-15%. Proximity to suppliers and the need for specialist contractors also influences pricing in this part of London.

Money-Saving Tips

Obtain detailed quotes from at least three local builders to compare pricing and specifications. Plan your extension during winter months (November–February) when builders have more availability and may offer discounts. Bundle projects (extension plus kitchen refurbishment) with a single contractor to negotiate better labour rates and reduce project management overhead.

Frequently Asked Questions

Do I need planning permission for a house extension in Ealing?
Most single-storey extensions under 4m (or 3m for detached homes) and two-storey extensions with permitted development rights don't require planning permission. However, Ealing has several conservation areas where stricter rules apply. Properties in these zones and listed buildings typically need formal approval. Always check with Ealing Council before starting; a pre-application consultation costs £150–£250 and can save time and money.
What is included in extension builder quotes?
Professional quotes should include: structural design, materials (bricks, timber, insulation), labour, waste removal, scaffolding, building regulations approval and inspection fees, and contingency (typically 10%). Some builders include planning support; others charge separately (£1,500–£3,500). Clarify what's included before comparing prices, as scope differences can distort cost comparisons.
How long does a typical extension take in Ealing?
A single-storey rear extension (20 sq m) usually takes 12–16 weeks from groundwork to completion. Two-storey extensions take 20–26 weeks. Factors affecting timeline include weather, planning delays, site access, and structural discovery work. Ealing's urban density sometimes causes unexpected delays; budget an extra 2–4 weeks as contingency.
Why are extension costs higher in Ealing than elsewhere?
Ealing is in Greater London, where skilled labour and materials cost 25–35% more than the national average. Local factors include tighter planning constraints, higher insurance and permit costs, increased competition for skilled tradespeople, and the need for specialist contractors familiar with London's building standards and conservation rules.

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