House extensions in Wandsworth

Wandsworth received 1,556 householder applications in the last 12 months - about 30 a week. Rear extensions and side extensions are the most common. Of the 786 decided so far, 703 were approved. If you're planning your own, the applications below show what people nearby applied for and how the council decided.

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Showing 50 of 612 applications
Today INVALID 2026/3241

2 Brightwell Crescent SW17 9AE

Removal of existing fence andf stub trunks of trees and the erection of a new fence with new landscaping.

Householder Wandsworth
Today INVALID 2026/3244

110 Earlsfield Road SW18 3DR

Erection of an extension above the two storey back addition.

Certificate of Lawfulness - Proposed Wandsworth
Yesterday REGISTERED 2026/3240

64 Penwortham Road SW16 6RE

Alterations including erection of single-storey rear/side extension

Householder Wandsworth
Yesterday REGISTERED 2026/3242

11 Marham Gardens SW18 3JZ

Construction of raised decking area with a glazed safety screen to rear elevation, with steps down to existing rear garden and side refuse area

Householder Wandsworth
Yesterday NEW 2026/3249

Address not available

Erection of a first floor rear extension.

Observations to Another Local Authority Wandsworth
Yesterday On-line 2026/3253

124 Sarsfeld Road London Wandsworth SW12 8HL

Two storey rear extension, loft conversion and associated alterations.

Application for Full Permission Wandsworth
Yesterday REGISTERED 2026/3218

117 West Hill Road SW18 5HN

Demolition of existing boundary wall and fence, and erection of a replacement front boundary boundary wall; Erection of cycle and refuse storage to th...

Householder Wandsworth
Yesterday INVALID 2026/3219

56 Elsynge Road SW18 2HN

Alterations including installation of iron vehicle access gates to the front boundary wall, in connection with formation of a dropped kerb and vehicle...

Householder Wandsworth
Yesterday INVALID 2026/3222

21 Gaskarth Road SW12 9NN

Erection of an extension to the main rear roof to provide access to a proposed roof terrace with a 1.7m high screen surround above part of the three-s...

Householder Wandsworth
Yesterday REGISTERED 2026/3228

3 Deodar Road SW15 2NP

Alterations including erection of two-storey outbuilding in rear garden to provide additional ancillary habitable accommodation.

Application for Full Permission Wandsworth
Yesterday NONINVALID 2026/3229

73 Massingberd Way SW17 6AF

Alterations including erection of a dormer extension to the main rear rof; Erection of a first floor rear roof terrace with a 1.7m high screen and a 1...

Application for Full Permission Wandsworth
Yesterday NEW 2026/3230

Flat 1 160 West Hill SW15 3SR

Demolition of part of existing front wall to provide vehicle access; Alterations to hard and soft landscaping and formation of hardstanding to the fro...

Application for Full Permission Wandsworth
Yesterday NEW 2026/3232

8 Henderson Road SW18 3RR

Conversion of three flats into a single dwellinghouse, erection of a single-storey rear extension with basement excavation and lightwell, and alterati...

Application for Full Permission Wandsworth
Yesterday NEW 2026/3235

Unit 1 to 28 Zennor Road SiteLambeth

Replacement of an existing fence panel adjacent to the existing vehicle gate with a pedestrian only gate.

Observations to Another Local Authority Wandsworth
Yesterday REGISTERED 2026/3201

20 Coleford Road SW18 1AD

Erection of a replacement ground floor rear/side single-storey extension, a replacement extension to the roof of the rear addition, replacement window...

Application for Full Permission Wandsworth
Yesterday REGISTERED 2026/3206

Flat B 169 Lower Richmond Road SW15 1HH

Non-material amendment to planning permission dated 29/01/2026 ref 2025/4395 (Replacement of existing timber screen at first floor level and installat...

Non-Material Amendment Wandsworth
Yesterday REGISTERED 2026/3213

3 Thurleigh Avenue SW12 8AN

Alterations including erection of a first floor rear extension; Demolition of existing rear extension and erection of 2x two storey rear/side extensio...

Application for Full Permission Wandsworth
Yesterday REGISTERED 2026/3215

10 Nicosia Road SW18 3RN

Alterations including the erection of a replacement single-storey rear extension with air-conditioning condenser unit and acoustic screening above; re...

Application for Full Permission Wandsworth
Yesterday REGISTERED 2026/3189

Flat B 210 Cavendish Road SW12 0BY

Alterations including erection of dormer roof extension to main rear roof and formation rear roof terrace.

Application for Full Permission Wandsworth
Yesterday REGISTERED 2026/3180

9 Arlesey Close SW15 2EX

Erection of a front porch and associated alterations including changes to door/fenestration

Application for Full Permission Wandsworth
Yesterday REGISTERED 2026/3153

88 Elsley Road SW11 5LL

Alterations including erection of a mansard extension to the main rear roof; Erection of an extension above part of the two-storey back addition; Inst...

Application for Full Permission Wandsworth
Yesterday REGISTERED 2026/3155

Falcon Mews 162 Falcon Road SW11 2NY

Alterations including installation of replacement roof covering to building.

Application for Full Permission Wandsworth
Yesterday REGISTERED 2026/3137

11 Brookwood Road SW18 5BL

Retention of a timber pergola in the rear garden

Application for Full Permission Wandsworth
Yesterday REGISTERED 2026/3119

20 Trinity Road SW17 7RE

Variation of conditions 2 (in accordance with drawings), 9 (cycle parking) and 10 (waste store) pursuant to planning permission dated 23/07/2026 ref 2...

Reserved Matters (following outline) Wandsworth
Yesterday REGISTERED 2026/3120

12 14 140 144 185 187 203 211 213 215 239 and 249 Eversleigh Road SW11

Alterations including replacement of single glazed timber sash windows with double glazed timber sash windows.

Application for Full Permission Wandsworth
Yesterday REGISTERED 2026/3124

Ground Floor Flat & First Floor Flat 19 Louisville Road SW17 8RL

Alterations including erection of single-storey rear/side extension to ground floor flat. Erection of mansard roof extension to main rear roof to the ...

Application for Full Permission Wandsworth
2 days ago REGISTERED 2026/3205

100 Flat Ground Floor Shelgate Road SW11 1BQ

Non material amendment to planning permission dated 12/08/2026 ref 2026/1669 (Alterations including erection of a single storey rear/side extension) t...

Non-Material Amendment Wandsworth
2 days ago INVALID 2026/3209

15 Edna Street SW11 3DP

Alterations including erection of an extension to the main rear roof; Erection of an extension above the two-storey back addition; Erection of a part ...

Application for Full Permission Wandsworth
2 days ago INVALID 2026/3214

Flat Above Shop 136-138 136 St Johns Hill SW11 1SL

Erection of a single storey ground floor extension and installation of a new front access door; together with the conversion of larger unit into two s...

Application for Full Permission Wandsworth
2 days ago INVALID 2026/3216

12 Strathville Road SW18 4QZ

Alterations in connection with conversion of 2 x 1-bed flats into single dwelling house.

Application for Full Permission Wandsworth
2 days ago INVALID 2026/3217

220 Balvernie Grove SW18 5RW

Erection of a mansard roof extension to main rear roof slope with French doors and safety railing with extension above two-storey rear addition.

Application for Full Permission Wandsworth
2 days ago REGISTERED 2026/3193

46 Trevelyan Road SW17 9LN

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

Application for Full Permission Wandsworth
2 days ago REGISTERED 2026/3194

31 Dents Road SW11 6JA

Non material amendment to planning permission dated 20/08/2026 ref 2026/1902 (Alterations including erection of extension above two-storey back additi...

Non-Material Amendment Wandsworth
2 days ago REGISTERED 2026/3199

9 Stella Road SW17 9HG

Installation of replacement double glazed UPVC windows to all elevations at ground and first levels and double glazed UPVC rear door.

Application for Full Permission Wandsworth
2 days ago REGISTERED 2026/3174

32 Whistlers Avenue SW11 3TS

Erection of single storey rear extension.

Certificate of Lawfulness - Proposed Wandsworth
2 days ago REGISTERED 2026/3178

96 Crowborough Road SW17 9QG

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

Application for Full Permission Wandsworth
2 days ago REGISTERED 2026/3179

81 Chestnut Grove SW12 8JF

Non-material amendment to planning permission dated 27/03/2024 ref 2023/4763 (Alterations including erection of single storey rear/side extension.) to...

Non-Material Amendment Wandsworth
2 days ago REGISTERED 2026/3168

72 Bellamy Street SW12 8BU

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

Application for Full Permission Wandsworth
2 days ago REGISTERED 2026/3138

46 Lingwell Road SW17 7NJ

Alterations including erection of a hip-to-gable side roof extension and dormer roof extension to the main rear roof; Erection of an extension above t...

Application for Full Permission Wandsworth
8 Sept 2026 INVALID 2026/3191

28, 32, 33, 48, 48, 49, 50, 55, 57, 58, 67, 68, 69, 71, 73, 75 80, 84, 86, 97, 105, 110, 116, 117, 120, 122, 125, 133, 135, 147, 163, 169, 171,Eversleigh Road SW11

Installation of replacement of windows.

Application for Full Permission Wandsworth
8 Sept 2026 REGISTERED 2026/3172

Flat Ground Floor 1 122 Lower Richmond Road SW15 1LN

Alterations including erection of single-storey rear/side extension and excavation to enlarge basement with formation of front and rear lightwells.

Application for Full Permission Wandsworth
8 Sept 2026 REGISTERED 2026/3173

8 Stott Close SW18 2TG

Alteration including replacement of existing timber windows with UPVC casement windows to front and rear elevations.

Application for Full Permission Wandsworth
8 Sept 2026 REGISTERED 2026/3147

39 Bevin Square SW17 7BB

Alterations including erection of mansard extension (with french doors and safety railing) to the main rear roof. Rooflights to front roofslope.

Application for Full Permission Wandsworth
8 Sept 2026 REGISTERED 2026/3149

31 Westhorpe Road SW15 1QH

Erection of roof extension above two storey back addition.

Certificate of Lawfulness - Proposed Wandsworth
8 Sept 2026 REGISTERED 2026/3160

Trinity Building HM Prison Wandsworth Heathfield Road SW18 3HX

Alterations to all window openings and installation of replacement or brick infill windows in the Trinity Building (G, H and K wings)[See associated l...

Application for Full Permission Wandsworth
8 Sept 2026 REGISTERED 2026/3164

Trinity Building HM Prison Wandsworth Heathfield Road SW18 3HX

Alterations to all window openings and installation of replacement or brick infill windows in the Trinity Building (G, H and K wings) [see associated ...

Alter or Extend a Listed Building Wandsworth
8 Sept 2026 REGISTERED 2026/3134

119 Twilley Street SW18 4NW

Alterations including erection of an extension above part of the two-storey back addition; formation of roof terrace above the two-storey back additio...

Application for Full Permission Wandsworth
8 Sept 2026 REGISTERED 2026/3143

3 Elborough Street SW18 5DP

Erection of a cycle and refuse store to front garden.

Application for Full Permission Wandsworth
8 Sept 2026 REGISTERED 2026/3129

119 Boundaries Road SW12 8HB

Details of refuse storage pursant to condition 4 of planning permission dated 22/07/2026 ref. 2026/1958 (Alterations including erection of rear dormer...

Reserved Matters (following outline) Wandsworth
8 Sept 2026 REGISTERED 2026/3114

18 Hollies Way Temperley Road SW12 8QG

Variation of condition 2 (in accordance with approved drawings) pursuant to planning permission dated 03/03/2025 ref 2024/3642 (Erection of single-sto...

Reserved Matters (following outline) Wandsworth
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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, whether taller, larger or 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 those drawing a lot of comments, 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.