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Ealing · Loft Conversion · 2026

Loft Conversion Planning Permission in Ealing: 2026 Guide

Ealing has significant conservation area coverage at 19%, and several streets are covered by design guidance that affects loft conversion applications. Householder approvals in Ealing run at around 76% with an average decision time of 10 weeks.

Verdict
May be permitted development

A loft conversion in Ealing can often be permitted development when it stays within size and design limits and no local constraint applies to your address. Always confirm at address level.

Planning Constraints in Ealing for Loft Conversion

Conservation area coverage
19%
Approval rate (Ealing)
76%
Avg. decision time
10 weeks
Article 4 directions
1
Numerous Victorian and Edwardian conservation areas
Borough-wide HMO Article 4
Key views and tall buildings policy around town centres
Article 4 directions in Ealing
  • HMO Article 4 across the borough

Permitted Development Rules

Loft conversions are permitted development for houses (not flats) under GPDO Schedule 2, Part 1, Class B, within strict volume and design limits.

  • Maximum added volume 40 cubic metres for terraced houses, 50 cubic metres for detached and semi-detached.
  • No part of the extension above the highest part of the existing roof.
  • No extensions on the principal elevation fronting a highway.
  • Side-facing windows must be obscure-glazed and non-opening below 1.7m from floor level.
  • Materials must be similar in appearance to the existing house.
  • Hip-to-gable extensions are not permitted in conservation areas.
  • Dormers must be set back at least 20cm from the eaves.

Read the full loft conversion planning guide for the national rules and application process.

Recent Loft Conversion Decisions in Ealing

The CanUBuild checker surfaces real recent applications close to your address — approvals and refusals — so you can see what the planning officers at Ealing Council have approved for comparable schemes. Nearby precedent is one of the strongest signals for your own chances.

Frequently Asked Questions

Do I need planning permission for a loft conversion in Ealing?

In Ealing, the answer depends on whether your property sits in a conservation area (19% of the borough), is listed, or falls within an Article 4 direction. Most loft conversion proposals are permitted development for houses when they stay within GPDO limits and no local constraint applies. Check your exact address with the CanUBuild checker before spending on drawings.

Can I build a loft conversion in a conservation area in Ealing?

Conservation areas in Ealing typically remove several permitted development freedoms. For a loft conversion, the Larger Home Extension route and some external alterations do not apply, so a full householder application is usually required. Planning officers at Ealing Council assess conservation area proposals against the specific character appraisal for the street.

How long does a loft conversion application take to decide in Ealing?

Ealing Council currently averages around 10 weeks for householder applications. Complex loft conversion proposals — particularly those in conservation areas or on listed buildings — can take longer. Prior approval decisions for Larger Home Extensions are typically issued in 42 days.

Are rear dormer loft conversions permitted development in Ealing?

In Ealing, rear dormer loft conversions on houses are generally permitted development provided the added volume is under 40m³ (terraced) or 50m³ (semi/detached), the dormer is set back from the eaves and the materials match. Hip-to-gable is excluded from PD in the borough's conservation areas.

Next step

Check your specific address in Ealing

Address-level constraints and recent decisions around the corner. No drawings needed.