What you could build at SE22 9DX: 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 Peckham Rye Common, Southwark.
359extensions seen within 600 m in the last 10 years
36loft conversions within 600 m in the last 10 years
174extensions 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 Peckham Rye Common.
Move to a home 20 m² bigger (about £1,139,000)
Stamp duty on the new home
£57,650
Estate agent on yours 1.2% + VAT
£13,608
Solicitors, buying and selling
£3,000
Survey
£600
Removals
£1,500
Money gone
£76,358
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
−£116,400
Money gone
−£58,900
On these figures, extending loses about £135,258 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.
Under consideration
–
26/AP/2450
27, Fellbrigg Road, Se22 9hq
Loft or dormer
Under consideration
–
26/AP/2500
160, Upland Road, Se22 0dq
Loft or dormer
Under consideration
–
26/AP/2552
28, Tyrrell Road, Se22 9ne
Rear extension
Under consideration
–
26/AP/2533
20, Fellbrigg Road, Se22 9hh
Loft or dormer
Under consideration
–
26/AP/2416
13, Bawdale Road, Se22 9dl
Loft or dormer
Approved
Oct 2026
26/AP/2495
255, Crystal Palace Road, Se22 9jh
Side return or wrap-around
Under consideration
–
26/AP/2497
255, Crystal Palace Road, Se22 9jh
Loft or dormer
Under consideration
–
26/AP/2498
69, Hindmans Road, Se22 9nq
Side return or wrap-around
Under consideration
–
26/AP/2457
17, Piermont Road, Se22 0ln
Loft or dormer
Approved
Sept 2026
26/AP/2339
202, Peckham Rye, Se22 0lu
Rear extension
Under consideration
–
26/AP/2316
8, Rodwell Road, Se22 9lf
Loft or dormer
Approved
Sept 2026
26/AP/2118
184, Friern Road, Se22 0ba
Loft or dormer
Approved
Oct 2026
26/AP/2317
25, Hansler Road, Se22 9dj
Side return or wrap-around
Approved
Sept 2026
26/AP/2325
199, Crystal Palace Road, Se22 9el
Loft or dormer
Under consideration
–
26/AP/2212
28, Silvester Road, Se22 9pd
Loft or dormer
Approved
Sept 2026
26/AP/1605
63, Rodwell Road, Se22 9le
Windows, doors or cladding
Under consideration
–
26/AP/0747
50, Landcroft Road, Se22 9ld
Side return or wrap-around
Approved
Aug 2026
26/AP/1795
167, Barry Road, Se22 0jp
Loft or dormer
Approved
Sept 2026
26/AP/1798
252, Barry Road, Se22 0js
Loft or dormer
Approved
Aug 2026
26/AP/1768
145, Barry Road, Se22 0jp
Loft or dormer
Approved
Aug 2026
26/AP/1599
252, Barry Road, Se22 0js
Loft or dormer
Approved
Jul 2026
26/AP/1618
133, Landells Road, Se22 9pj
Loft or dormer
Approved
Sept 2026
26/AP/1432
61, Tyrrell Road, Se22 9ne
Side return or wrap-around
Approved
Aug 2026
26/AP/1519
69, Henslowe Road, Se22 0as
Loft or dormer
Approved
Jul 2026
26/AP/1492
39, Landells Road, Se22 9pq
Side return or wrap-around
Approved
Jul 2026
26/AP/1455
136, Friern Road, Se22 0ay
Side return or wrap-around
Approved
Jul 2026
26/AP/1414
133, Landells Road, Se22 9pj
Loft or dormer
Approved
Jul 2026
26/AP/1431
133, Landells Road, Se22 9pj
Loft or dormer
Approved
Jun 2026
26/AP/1433
6, Ulverscroft Road, Se22 9hg
Loft or dormer
Approved
Jul 2026
26/AP/1358
26, Fellbrigg Road, Se22 9hh
Loft or dormer
Approved
Jun 2026
26/AP/1376
46, Rodwell Road, Se22 9le
Loft or dormer
Approved
Jun 2026
26/AP/1195
3, Friern Road, Se22 0au
Loft or dormer
Approved
Oct 2026
26/AP/1304
86, Henslowe Road, Se22 0as
Porch or front extension
Approved
Aug 2026
26/AP/0971
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.
–
100% (47)
88%
7 weeks
Basement
–
96% (47)
83%
8 weeks
Porch or front extension
–
100% (19)
81%
7 weeks
Share of decided applications approved since 2023 (number decided in brackets). Withdrawn applications aren't counted; many are withdrawn when refusal looks likely.