What you could build at W5 2EG: the planning rules at this address, what neighbours have built and how big, planning decisions nearby, rough costs and the value an extension adds, and how to get started. In Ealing Broadway East, Ealing.
91extensions seen within 600 m in the last 10 years
14loft conversions within 600 m in the last 10 years
56.9extensions per 1,000 homes in the neighbourhood (10 years)
● work seen on energy certificates · ● application approved · ● refused · ● pending or other · ● this postcode
The rules at this address
Mostly flats at this postcode. Flats have no permitted development rights, so almost any extension or loft conversion needs planning permission, and the freeholder's consent under the lease.
Not in a conservation area (from council registers).
No Article 4 direction recorded for this postcode.
Listed buildings need listed building consent for most changes, inside and out: check the National Heritage List.
To be certain work is permitted development, apply for a lawful development certificate (about £129 for householders in England). Building regulations apply either way.
Across England and Wales, homes extended by a typical 30 m² and then resold rose about 11.1% more than similar homes nearby over the same years (124,884 resales). How extensions pay off by size, type and region.
Single-storey rear or side extension: about £2,000–£3,000 per m² (London £2,500–£4,000), plus fees and VAT
Loft conversion: about £45,000–£75,000 for a dormer; more for a mansard or hip-to-gable
Two-storey extension: about £1,800–£2,800 per m² of new floor
Garage conversion: about £15,000–£30,000
Basement: about £3,500–£5,000 per m², London mostly
Build costs are rough 2026 ranges from industry guides, not quotes. Get three quotes for your plans.
Move or improve?
The money you don't get back either way, for the same extra space in Ealing Broadway East.
Move to a home 20 m² bigger (about £701,000)
Stamp duty on the new home
£25,050
Estate agent on yours 1.2% + VAT
£7,704
Solicitors, buying and selling
£3,000
Survey
£600
Removals
£1,500
Money gone
£37,854
Extend by 20 m²
Building, plus 15% for design, planning and contingency
£57,500
Less what it adds to your home's value 60% of the local price
−£99,600
Money gone
−£42,100
On these figures, extending loses about £79,954 less. Moving also changes the area, the schools and the commute; extending means months of building work and depends on planning.
Building costs vary a lot (a single-storey rear extension is often £2,000–£3,000 per m², more in London). How much space adds depends on the home and street: what extensions added to resale prices. A guide, not advice; nothing you type leaves this page.
Getting started
Look at what neighbours did. Open applications above to see drawings that were approved on similar houses, and who designed them.
Check the route: permitted development (with a lawful development certificate), prior approval for larger rear extensions, or full householder planning permission.
Get a measured survey and a designer: an architect, an architectural technologist or a designer who handles planning drawings.
Apply (householder permission is about £258 in England; councils aim to decide within 8 weeks).
Building regulations through the council's building control or an approved inspector, and party wall notices to neighbours if you build on or near the boundary.
Choose a builder: written quotes, a contract, staged payments, and check their insurance and references.
From energy certificates: an extension where a later certificate shows more floor space, a loft conversion where roof rooms appear. Certificates come with sales, lettings and some building work, so the year is when it was first seen.
Not every extension shows here. We only see building work when a new energy certificate is lodged, which happens when a home is sold, let or newly built. A loft or extension added since then won't appear, even with planning permission and building control sign-off, because those records aren't published as open data outside London. Missing work doesn't mean missing paperwork.
21, The Common, W5 3jb
Loft or dormer
Approved
Aug 2026
262310HH
66, Madeley Road, W5 2lu
Outbuilding or garden room
Refused
Aug 2026
262254HH
11, Corfton Road, W5 2hp
Other householder work
Under consideration
–
262151HH
9, Hills Mews, W5 3rg
Side extension
Approved
Jul 2026
261970HH
21, Woodville Gardens, W5 2ll
Garage conversion or garage
Approved
Jun 2026
261894HH
5, The Mall, W5 2pj
Other householder work
Under consideration
–
261713PACBSD
124, The Grove, W5 3sh
Side extension
Approved
Jul 2026
261673HH
30, Inglis Road, W5 3rl
Loft or dormer
Under consideration
–
261542HH
2, Corfton Road, W5 2hs
Other householder work
Approved
Jun 2026
261465HH
19, The Common, W5 3tr
Rear extension
Approved
Aug 2026
261138HH
17, The Mall, W5 2pj
Other householder work
Other
May 2026
260397PACBSD
70, Haven Lane, W5 2hn
Side return or wrap-around
Approved
Jun 2026
261039HH
28, Woodville Road, W5 2sf
Two-storey extension
Approved
Jun 2026
260927HH
70, Haven Lane, W5 2hn
Loft or dormer
Approved
May 2026
260754HH
44, The Grove, W5 5lh
Loft or dormer
Approved
May 2026
260238HH
98, Haven Lane, W5 2hy
Loft or dormer
Approved
May 2026
260188HH
28, Woodville Road, W5 2sf
Basement
Approved
Apr 2026
260195HH
28, Woodville Road, W5 2sf
Loft or dormer
Approved
Mar 2026
260005HH
13, Woodville Road, W5 2se
Loft or dormer
Approved
Apr 2026
254534HH
20, Woodville Road, W5 2sf
Basement
Approved
Feb 2026
253998HH
4, Aston Road, W5 2rl
Loft or dormer
Approved
Oct 2025
253012HH
31, Woodville Road, W5 2se
Loft or dormer
Approved
Jan 2026
252741HH
6, Park View Road, W5 2jb
Windows, doors or cladding
Approved
Sept 2025
252784HH
22, Grove Road, W5 5ds
Windows, doors or cladding
Withdrawn
Sept 2025
252609HH
2, Aston Road, W5 2rl
Loft or dormer
Approved
Sept 2025
252417HH
6, Haven Lane, W5 2hn
Rear extension
Approved
Aug 2025
252140HH
7, International House, High Street, W5 5db
Other householder work
Other
May 2025
251339PACBSD
136, The Grove, W5 3sh
Basement
Approved
Aug 2025
251146HH
10, Creffield Road, W5 3hp
Rear extension
Approved
May 2025
250727HH
16, Mountfield Road, W5 2ng
Loft or dormer
Approved
Mar 2025
250116HH
45, The Broadway, W5 5ju
Other householder work
Other
Feb 2025
244893PACBSD
28, Grove Road, W5 5ds
Windows, doors or cladding
Approved
Jan 2025
244325HH
126, The Grove, W5 3sh
Side extension
Approved
Jan 2025
243672HH
85, Western Road, W5 5dt
Loft or dormer
Approved
Dec 2024
243389HH
2a, Hamilton Road, W5 2eq
Loft or dormer
Approved
Nov 2024
243330HH
Householder applications validated since 2023 within 600 m. The council's page has the drawings, the decision notice and who the agent or architect was. Hover a row for the description. Source: GLA Planning London Datahub.
–
88% (76)
88%
8 weeks
Basement
–
81% (52)
83%
10 weeks
Porch or front extension
–
80% (64)
81%
8 weeks
Share of decided applications approved since 2023 (number decided in brackets). Withdrawn applications aren't counted; many are withdrawn when refusal looks likely.