Loft conversion in Ealing: Planning Permission Guide
Everything you need to know about loft conversions in Ealing — permitted development rules, costs, and which professionals you'll need.
Check if your loft conversion qualifiesLoft conversions in Ealing at a glance
approved
application fee
weeks typical
Based on 182 decided applications in Ealing over 12 months (142 granted, 40 refused).
Ealing has over 30 conservation areas including Bedford Park — England's first garden suburb, with notoriously strict design controls — plus Ealing Common, Hanwell, Northfields, and Walpole. Listed building density is high in Bedford Park. Article 4 Directions restrict external changes in Bedford Park and other heritage areas, targeting window replacements and external alterations. The council's conservation enforcement is consistently active.
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Approval probability, 5 nearest comparables, refusal reasons — for your specific address.
Recent loft conversion decisions in Ealing
The 5 most recent decided applications. Addresses redacted to postcode area.
Construction of rear dormer window; installation of three rooflights to front roofslope; installation of five rooflights to side roofslop…
Roof extensions on side elevations and hip to gable roof alteration on rear elevation.
Minor material amendment (S.73) to vary condition no. 2 (approved plans) pursuant to planning permission reference 244156FUL dated 09/05/…
Creation of flat in loft, rear roof extension and installation of four rooflights to front roofslope
Alteration of roof from hip to gable end; rear roof extension; rear outrigger roof extension; installation of two rooflights to front roo…
These are borough-wide. See the 5 nearest to your address.
Get my report — £9Permitted Development Rules
Additions etc to the roof of a dwellinghouse
GPDO 2015, Schedule 2, Part 1, Class B
Loft conversions fall under Part 1, Class B of the GPDO. You can add volume to your roof space without planning permission, as long as you stay within the cubic metre limits for your property type.
Key dimension limits
These are the maximum GPDO limits for a detached house with no constraints. Your actual limits depend on your property type, location, and any planning restrictions.
Enter your postcode to see the personalised limits for your loft conversion.
Check my limitsTypical Costs in London
Loft conversion costs vary significantly depending on the type — a simple Velux conversion is much cheaper than a dormer or mansard.
Cost per m²
construction rate
Typical total
Based on 15–25 m²
Typically includes
Typically excludes
Dormer loft conversions are at the higher end. Velux/rooflight conversions are cheaper. Mansard conversions can exceed these ranges.
Get a personalised cost estimate based on your actual loft conversion dimensions.
Get my estimateWhich Professionals Do You Need?
Loft conversions involve structural alterations to your roof and floor, so professional input is important for safety and Building Regulations compliance.
You'll need a structural engineer and a party wall surveyor for this project.
Loft conversions involve structural alterations and Building Regulations requirements that benefit from professional design.
Typical fee: £2,000–£5,000 (Plans + Building Regs)
Loft conversions require structural calculations for floor strengthening, roof alterations, and any steelwork.
Typical fee: £800–£2,500
Your semi-detached house shares a boundary with neighbours. Extensions and loft work within 3 metres of a shared wall trigger the Party Wall Act.
Typical fee: £700–£1,500 (per neighbour)
This guidance is based on a typical semi-detached house with no special constraints. Listed buildings, conservation areas, and attached properties may require additional professional input.
Find out exactly which professionals you need for your loft conversion.
Get personalised guidanceConservation Areas & Listed Buildings
In conservation areas, dormers on any roof slope facing a highway are not permitted development. Velux or rooflight conversions may still be possible.
Properties in conservation areas often have reduced permitted development rights. Some project types (like side extensions) lose PD rights entirely. An Article 4 Direction can remove additional PD rights.
Listed buildings (Grade I, II*, or II) have no permitted development rights at all. Any external alteration requires Listed Building Consent in addition to any planning permission. An architect experienced in heritage work is essential.
Check if your property is in a conservation area or has other planning constraints.
Check my propertyFrequently Asked Questions
Just want a quick yes/no for your loft conversion?
Run our free 2-minute check to see whether your project likely qualifies as permitted development in Ealing. For personalised approval odds and nearby comparables, get the full report above.
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