What you could build at W13 0HF: 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 Drayton Green & Cleveland, Ealing.
102extensions seen within 600 m in the last 10 years
7loft conversions within 600 m in the last 10 years
88.4extensions 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
Houses usually have permitted development rights: some rear extensions (typically up to 3 m deep for a semi or terrace, 4 m detached), loft conversions within volume limits, and porches can go ahead without planning permission. Larger single-storey rear extensions (up to 6 m / 8 m) can use the “prior approval” neighbour scheme.
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 Drayton Green & Cleveland.
Move to a home 20 m² bigger (about £977,000)
Stamp duty on the new home
£41,450
Estate agent on yours 1.2% + VAT
£11,952
Solicitors, buying and selling
£3,000
Survey
£600
Removals
£1,500
Money gone
£58,502
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
−£88,200
Money gone
−£30,700
On these figures, extending loses about £89,202 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.
Loft or dormer
Refused
Aug 2026
262640HH
1, Fosse Way, W13 0bz
Loft or dormer
Refused
Aug 2026
262459HH
2, Fern Dene, W13 8an
Other householder work
Approved
Aug 2026
262171HH
18, Sherborne Gardens, W13 8as
Side return or wrap-around
Approved
Jul 2026
261938HH
109, The Avenue, W13 8jt
Side return or wrap-around
Approved
Jul 2026
261818HH
149, Framfield Road, W7 1nq
Side return or wrap-around
Approved
Jul 2026
261585HH
68, Lynton Avenue, W13 0eb
Loft or dormer
Approved
Apr 2026
260839HH
1, Fosse Way, W13 0bz
Loft or dormer
Approved
Jun 2026
260403HH
66, Cleveland Road, W13 8aj
Rear extension
Approved
Apr 2026
260434HH
133, Cleveland Road, W13 0en
Rear extension
Approved
May 2026
260423HH
17, Courtfield Gardens, W13 0ey
Basement
Approved
Jun 2026
260365HH
7, Kent Avenue, W13 8be
Rear extension
Approved
Feb 2026
254780HH
98, Cleveland Road, W13 0ej
Two-storey extension
Approved
Feb 2026
254755HH
138, Homefarm Road, W7 1np
Two-storey extension
Refused
Jan 2026
254431HH
3, Avalon Close, W13 0bj
Two-storey extension
Refused
Jan 2026
254347HH
30, Vallis Way, W13 0dd
Loft or dormer
Approved
Jan 2026
254335HH
6, Rutland Gardens, W13 0ed
Loft or dormer
Approved
May 2026
254182HH
92, Cavendish Avenue, W13 0jn
Other householder work
Approved
Jan 2026
253869HH
4, Egerton Gardens, W13 8hq
Side return or wrap-around
Approved
Dec 2025
254080HH
9, Sherborne Gardens, W13 8as
Loft or dormer
Approved
Dec 2025
254025HH
54, Avalon Road, W13 0bn
Rear extension
Not needed / lawful
Nov 2025
253866PALHE
12, Bruton Way, W13 0by
Outbuilding or garden room
Approved
Nov 2025
253719HH
7, Egerton Gardens, W13 8hg
Loft or dormer
Approved
Jan 2026
253477HH
178, Westcott Crescent, W7 1pd
Porch or front extension
Approved
Nov 2025
253409HH
133, Cleveland Road, W13 0en
Rear extension
Refused
Oct 2025
253403PALHE
44, Kent Avenue, W13 8bh
Rear extension
Approved
Oct 2025
253262HH
28, Templeman Road, W7 1at
Rear extension
Refused
Oct 2025
252690FUL
109, The Avenue, W13 8jt
Side return or wrap-around
Withdrawn
Nov 2025
253008HH
98, Cleveland Road, W13 0ej
Rear extension
Approved
Sept 2025
252920HH
15, Kent Avenue, W13 8be
Loft or dormer
Approved
Dec 2025
252847HH
14, Downside Crescent, W13 0bq
Two-storey extension
Refused
Oct 2025
252806HH
138, Homefarm Road, W7 1np
Rear extension
Approved
Oct 2025
252624HH
21, Fosse Way, W13 0bz
Loft or dormer
Approved
Sept 2025
252547HH
76, Cleveland Road, W13 8ah
Rear extension
Approved
Aug 2025
252439PALHE
14, Avalon Road, W13 0bn
Two-storey extension
Approved
Jul 2025
252119HH
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.