Building cost in Ealing: 2026 rates.
Ealing is one of the more cost-efficient outer-west London boroughs for homeowner work. Rear extensions run £2,600–£3,700/m²; loft conversions £60k–£120k; full refurbs £2,100–£3,300/m² on 2026 rates. Edwardian semi stock is dominant, hip-to-gable + rear-dormer loft conversions are highly standardised and quote spreads typically narrower than inner London.
| Project type | Typical 2026 cost |
|---|---|
| Rear extension | £2,600–£3,700/m² |
| Loft conversion (total) | £60,000–£120,000 |
| Full refurbishment | £2,100–£3,300/m² |
| Basement (per m²) | £4,400–£7,000/m² |
All figures exclude VAT (20% on most refurb/extension work), professional fees (8–14% typical), party wall awards and statutory costs.
- Ealing's PD regime is intact on most streets, 6m single-storey rear extensions on terraces / 8m on detached
- Bedford Park, Ealing Green and Hanwell conservation areas remove PD rights on protected streets
- Loft conversions on Edwardian semis are highly standardised, pricing tighter than inner London
- Party Wall Act 1996 awards typically £800–£2,000 per adjoining owner
- Contractor competition is strong across W5 and W13, quote review consistently identifies 10–15% saving
Standardised loft and extension types plus competitive contractor market, focus cost expert work on quote review and monthly monitoring.
Frequently asked, Ealing
How much does an Ealing loft conversion cost?
A standard hip-to-gable plus rear-dormer loft on an Ealing Edwardian semi costs £75,000–£120,000 on 2026 rates including ensuite, plus VAT, design fees and any party wall costs. Basic rear-dormer-only conversions on terraces start at £60,000.
Can I extend under PD in Ealing?
Yes on most non-Article-4 streets. Ealing follows the national PD regime, single-storey rear extensions up to 6m on terraces (8m detached) under the larger home extension prior approval route, subject to neighbour consultation.
What does an Ealing house refurbishment cost?
A full refurb of a 130–170m² Ealing Edwardian semi costs £300,000–£500,000 on 2026 rates, plus VAT and fees. Adding a hip-to-gable loft conversion and a rear extension to the same project pushes the all-in figure to £500k–£800k.
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