House extensions in Wandsworth

Wandsworth received 752 householder applications in the last 12 months - about 14 a week. Rear extensions and dormers are the most common. If you're planning your own, the applications below show what people nearby applied for and how the council decided.

524 last 90 days
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156 last 30 days
|
71 last 14 days

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Pick a year, or click two to span the range between them. Records before 2026 come from the archive.

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Showing 50 of 524 applications
2026/2528 Yesterday NEW

72 Elsenham Street SW18 5NT

Single storey rear extension at ground floor.

Wandsworth
2026/2527 Yesterday NEW

2 Rusholme Road SW15 3JZ

Alterations including excavation to create basement formation of front lightwell with grille and alterations to rear extension. Installation of replac...

Wandsworth
2026/2526 Yesterday NEW

65 Heathfield Road SW18 2PH

Resurfacing of the existing open driveway/forecourt in a buff-coloured porous resin-bound finish (replacing the existing block paving); erection of a ...

Wandsworth
2026/2523 Yesterday NEW

129 Lower Richmond Road SW15 1EZ

Alterations including erection of mansard extension with dormers (including with french doors and safety screen) to main roof to provide an additional...

Wandsworth
2026/2520 Yesterday NEW

28 Flat Basement 1 Wimbledon Park Road SW18 1LT

Proposed Lower Ground Floor Extension including Excavation of Lightwell

Wandsworth
2026/2515 Yesterday NEW

237 Putney Bridge Road SW15 2PU

Application for a single storey front sloped roof with rear roof extension over existing 2 storey building

Wandsworth
2026/2513 Yesterday NEW

222 Balham High Road SW12 9BS

Alterations including erection of first floor side extension in connection with part change of use from Office (Class E) to residential (Class C3) to ...

Wandsworth
2026/2482 2 days ago REGISTERED

26 Campion Road SW15 6NW

Details of external materials pursuant to condition 4 of planning permission dated 22/04/2026 ref 2026/0443 (Alterations including removal of existing...

Wandsworth
2026/2480 2 days ago REGISTERED

105 Aslett Street SW18 2BG

Erection of part single, part two-storey rear/side extension.

Wandsworth
2026/2479 2 days ago REGISTERED

105 Aslett Street SW18 2BG

Alterations including erection of mansard roof extension to main rear roof and extension above part of two-storey back addition.

Wandsworth
2026/2512 2 days ago NEW

179 Randell Properties Northcote Road SW11 6QF

Change of use to dog grooming and daycare facility with associated retail space (sui generis), and erection of retractable awning

Wandsworth
2026/2507 2 days ago INVALID

Denmead House, Charcot House & Binley House Highcliffe Drive SW15

Installation of new concrete planter at the entrance of Denmead House,Charcot House and Binley House. New concrete pedestrian stairs with retaining ed...

Wandsworth
2026/2504 2 days ago NEW

96 Ritherdon Road SW17 8QQ

Alterations including erection of single-storey rear/side extension and change of use from a hostel (Sui Generis) to a single family dwelling (Class C...

Wandsworth
2026/2502 2 days ago NEW

150 Heythorp Street SW18 5BU

Erection of a single storey side and rear extension.

Wandsworth
2026/2496 2 days ago NEW

26 Maisonette Basement And Ground Floors A Ramsden Road SW12 8QY

Installation of new canopy above flat entrance door

Wandsworth
2026/2439 9 Jul 2026 REGISTERED

Flat Ground Floor 109 Grayshott Road SW11 5UD

Alterations including erection of single-storey side/rear extension with installation of solar photovoltaic panels to the roof and an air source heat ...

Wandsworth 9 Jul 2026
2026/2437 9 Jul 2026 REGISTERED

31 Belleville Road SW11 6QS

Non-material amendment to planning permission dated 21/07/2023 ref 2023/0671 (Erection of side roof extension and rear mansard roof extension and exte...

Wandsworth 9 Jul 2026
2026/2434 9 Jul 2026 REGISTERED

34 Charlwood Road SW15 1PW

Alterations including erection of a dormer extension to the main rear roof and insertion of rooflights to main front roof slope; increase to the depth...

Wandsworth 9 Jul 2026
2026/2460 9 Jul 2026 REGISTERED

65 Balvernie Grove SW18 5RR

Alterations including erection of single-storey rear side infill extension.

Wandsworth 9 Jul 2026
2026/2459 9 Jul 2026 REGISTERED

20 Vardens Road SW11 1RH

Details of air conditioning unit pursuant to condition 4 of planning permission dated 18/05/2026 ref 2026/0799 (Alterations including remodelling of r...

Wandsworth 9 Jul 2026
2026/2495 9 Jul 2026 NEW

35 Lyford Road SW18 3LU

Demolition of existing and erection of a replacement single storey rear extension.

Wandsworth 9 Jul 2026
2026/2494 9 Jul 2026 INVALID

31 Penwortham Road SW16 6RF

Erection of a single storey rear/side extension; Removal of glazed doors to front entrance; Installation of an air source heat pump to the rear garden...

Wandsworth 9 Jul 2026
2026/2488 9 Jul 2026 NEW

11 Kennet Close SW11 2DG

Erection of a single-storey ground floor rear extension.

Wandsworth 9 Jul 2026
2026/2487 9 Jul 2026 NEW

65 Combemartin Road SW18 5PP

Erection of part single, part two-storey rear extension

Wandsworth 9 Jul 2026
2026/2486 9 Jul 2026 NEW

31 Eatonville Road SW17 7SH

Erection of an extension above the two-storey back addition, and installation of 5 x rooflights to the front roof slope.

Wandsworth 9 Jul 2026
2026/2484 9 Jul 2026 INVALID

107 Magdalen Road SW18 3NW

Erection of a hip-to-gable side roof extension and extension to the main rear roof, raising the chimney by 1.4m; Installation of 2 x rooflights to the...

Wandsworth 9 Jul 2026
2026/2481 9 Jul 2026 NEW

42-44 Mitcham Road SW17 9NA

Non-material amendment to planning permission dated 10/03/2026 ref 2026/0158 (The redecoration of the first floor elevations, change in finish to the ...

Wandsworth 9 Jul 2026
2026/2424 8 Jul 2026 REGISTERED

Caryl House Windlesham Grove SW19 6AH and Grantley House Windlesham Grove SW19 6AQ

Installation of freestanding safety guardrail system to the flat roof perimeters of each block.

Wandsworth 8 Jul 2026
2026/2457 8 Jul 2026 REGISTERED

72 Dover House Road SW15 5AT

Alterations including erection of single-storey rear extension.

Wandsworth 8 Jul 2026
2026/2474 8 Jul 2026 NEW

73 Valnay Street SW17 8PS

Erection of a dormer extension to main rear roof slope with installation of roof lights to front slope. Alterations to the existing rear ground floor ...

Wandsworth 8 Jul 2026
2026/2465 8 Jul 2026 NEW

1 Idlecombe Road SW17 9TD

Alterations including erection of hip to gable roof extension with rear mansard and roof extension above two storey back addition.

Wandsworth 8 Jul 2026
2026/2464 8 Jul 2026 INVALID

6 Tonsley Hill SW18 1BB

Alterations including formation of rear roof terrace with 1.7m glazed safety surround at second floor level.

Wandsworth 8 Jul 2026
2026/2463 8 Jul 2026 NEW

30 A Byton Road SW17 9HE

Alterations including erection of rear dormer roof extension to main rear roof and roof extension above two storey back addition.

Wandsworth 8 Jul 2026
2026/2461 7 Jul 2026 INVALID

Redforth 55 St Johns Avenue SW15 6AL

Installation of six solar panels to main rear roof and air conditioning unitrear at first floor level. Alterations to the centrally placed new front d...

Wandsworth 7 Jul 2026
2026/2456 7 Jul 2026 INVALID

12 Strathville Road SW18 4QZ

Alterations including erection of a single storey rear and side extension; Installation of french doors and safety railing to the first floor rear ele...

Wandsworth 7 Jul 2026
2026/2455 7 Jul 2026 INVALID

Flat A 31 Airedale Road SW12 8SQ

Erection of a single storey rear/side extension.

Wandsworth 7 Jul 2026
2026/2453 7 Jul 2026 NEW

12 Strathville Road SW18 4QZ

Erection of a dormer extension to main rear roof, and extension above two storey back addition.

Wandsworth 7 Jul 2026
2026/2449 7 Jul 2026 NEW

7 A Aldis Street SW17 0RZ

Details of metal framework to entrance door and iron garden fence and gate pursuant to condition 5 of planning permission dated 03/09/2018 ref 2018/25...

Wandsworth 7 Jul 2026
2026/2447 7 Jul 2026 REGISTERED

34 Brodrick Road SW17 7DY

Erection of outbuilding in rear garden

Wandsworth 7 Jul 2026
2026/2445 7 Jul 2026 NEW

7 Melrose Road SW18 1ND

Alterations including erection of a first floor rear extension; Erection of a single storey rear/side extension; Installation of a safety railing to t...

Wandsworth 7 Jul 2026
2026/2443 6 Jul 2026 INVALID

42 Putney Park Lane SW15 5HD

Non-material amendment to planning permission dated 08/07/2024 ref 2024/1603 (Alterations including erection of single storey rear/side extension) to ...

Wandsworth 6 Jul 2026
2026/2442 6 Jul 2026 INVALID

6 Warriner Gardens SW11 4EB

Alterations including erection of side and rear dormer extension to the main roof including formation of a roof terrace with 1.7m high obscured glazed...

Wandsworth 6 Jul 2026
2026/2441 6 Jul 2026 INVALID

32 Gorst Road SW11 6JE

Erection of a single storey side extension and conversion of existing lightwell below to storage space.

Wandsworth 6 Jul 2026
2026/2438 4 Jul 2026 INVALID

Second Floor Flat 4 7 Louvaine Road SW11 2AQ

Formation of rear roof terrace at 4th floor level.

Wandsworth 4 Jul 2026
2026/2433 4 Jul 2026 INVALID

40 Flat Second Floor C Lyford Road SW18 3LS

Installation of 2 x rooflights to rear roofslope.

Wandsworth 4 Jul 2026
2026/2422 3 Jul 2026 INVALID

Flat C 203 St Anns Hill SW18 2RX

Retention of existing roof terrace.

Wandsworth 3 Jul 2026
2026/2421 3 Jul 2026 NEW

41 Derinton Road SW17 8JA

Alterations including erection of single-storey rear extension.

Wandsworth 3 Jul 2026
2026/2418 3 Jul 2026 REGISTERED

2 Gwendolen Close SW15 6ER

Alterations including erection of single storey rear extension

Wandsworth 3 Jul 2026
2026/2413 3 Jul 2026 NEW

29 Keildon Road SW11 1XH

Alterations to front roof pitch to create second floor front bay window.

Wandsworth 3 Jul 2026
2026/2362 2 Jul 2026 REGISTERED

5 Collamore Avenue SW18 3JR

Erection of a dormer extension to main rear roof (with French doors and safety screen) and three rooflights to the front roof slope,.internal alterati...

Wandsworth 2 Jul 2026
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Frequently asked questions

When do you need planning permission for a house extension?
Single-storey rear extensions up to 4m (detached) or 3m (semi-detached / terraced) are usually permitted development. Two-storey extensions, anything in a conservation area, or larger projects almost always need a planning application.
What's the difference between planning permission and permitted development?
Permitted development rights let you build certain things without applying for planning permission, subject to specified limits. Anything outside those limits — taller, larger, in a protected area — needs full planning permission.
How long does a householder application take?
The statutory target is 8 weeks from validation. Most simple householder extensions are decided within that window; complex or contested cases (especially with objections) can take longer.
Can I get email alerts for new extensions applications in Wandsworth?
Yes. Click "Set up alerts" on this page and you'll get a daily or weekly email listing every new extensions application published by Wandsworth. You can also narrow the alert to a postcode, street, or drawn area.

We check Wandsworth's planning portal daily. New extensions applications appear here within a day of being published.