House extensions in Kingston upon Thames

Kingston upon Thames received 1,034 householder applications in the last 12 months - about 20 a week. Rear extensions and dormers are the most common. Of the 899 decided so far, 761 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 224 applications
21 Oct 2026 Pending Consideration 26/01754/HOUF

61 Latchmere Road Kingston Upon Thames KT2 5TS

Demolition of side garage and rear conservatory and erection of single storey side and rear extension, and hip to gable and rear dormer roof extension...

Householder - Fast Track Kingston Upon Thames
19 Oct 2026 Pending Consideration 26/01914/PAEXT

8 Aragon Road Kingston Upon Thames KT2 5QE

Erection of single storey rear extension (6.0m in depth, maximum height of 3.0m and eaves height of 3.0m)

PA Householder Rear Extension Kingston Upon Thames
15 Oct 2026 Pending Consideration 26/02157/CPUF

16 Groveland Way New Malden KT3 5BT

Demolition of an existing side garage and erection of a single storey side extension.

Cert of Lawful Use/Operation - Prop FT Kingston Upon Thames
14 Oct 2026 Pending Consideration 26/02127/CPU

37 Addison Gardens Surbiton KT5 8DJ

Demolition of an existing boundary wall and erection of a new boundary wall with associated landscaping

Cert of Lawful Use/Operation - Proposed Kingston Upon Thames
14 Oct 2026 Pending Consideration 26/02006/HOU

3 Branksome Way New Malden KT3 3AX

Conversion of an existing garage into a habitable space. Erection of single storey front and rear, first floor rear extension. Enlargement of loft wit...

Householder Kingston Upon Thames
14 Oct 2026 Pending Consideration 26/01395/HOU

57 Ditton Road Surbiton KT6 6RF

Erection of new drop kerb.

Householder Kingston Upon Thames
14 Oct 2026 Pending Consideration 26/01780/HOU

26 East Road Kingston Upon Thames KT2 6EL

Erection of first floor rear extension, hip to gable roof extension with rear dormer. Installation of 2 nos front rooflights and associated alteration...

Householder Kingston Upon Thames
13 Oct 2026 Pending Consideration 26/01935/HOU

Ballard Coombe 109 Coombe Lane West Kingston Upon Thames KT2 7HE

Erection of low brick walls to create two front garden flower beds, with associated planting; existing boundary wall, gate, driveway, hedges and trees...

Householder Kingston Upon Thames
12 Oct 2026 Pending Consideration 26/02173/CPU

9 Eton Avenue New Malden KT3 5AY

Erection of hip-to-gable and rear dormer roof extension with installation of 3nos. front rooflights to facilitate loft conversion

Cert of Lawful Use/Operation - Proposed Kingston Upon Thames
12 Oct 2026 Pending Consideration 26/02169/HOU

87 Hook Rise South Chessington KT6 7NA

Erection of single-storey part front and single-storey part rear extension, demolition of rear outbuilding and erection of replacement detached outbui...

Householder Kingston Upon Thames
12 Oct 2026 Pending Consideration 26/02167/HOU

55 St Albans Road Kingston Upon Thames KT2 5HH

Erection of hip to gable and rear dormer roof extension with installation of 2nos. front rooflights to facilitate loft conversion.

Householder Kingston Upon Thames
12 Oct 2026 Pending Consideration 26/01894/FUL

65A Cromwell Avenue New Malden KT3 6DN

Erection of rear dormer roof extension with installation of front rooflights to facilitate loft conversion.

Full Application Kingston Upon Thames
12 Oct 2026 Withdrawn 20 Oct 26/01881/LBC

24 Market Place Kingston Upon Thames KT1 1JH

Installation of internally illuminated external signage. New partition and linings to interior of ground floor, new WC and partitions to first floor, ...

Listed Building Consent Kingston Upon Thames
12 Oct 2026 Pending Consideration 26/02147/PAEXT

8 Midleton Road New Malden KT3 3ES

Erection of single storey rear extension (6.0m in depth, maximum height of 3.0m and eaves height of 3.0m)

PA Householder Rear Extension Kingston Upon Thames
12 Oct 2026 Pending Consideration 26/02059/HOUF

183 Kings Road Kingston Upon Thames KT2 5JH

Erection of single storey side and rear, first floor rear extension

Householder - Fast Track Kingston Upon Thames
9 Oct 2026 Pending Consideration 26/02160/HOU

33 Cardinal Crescent New Malden KT3 3EF

Removal of shed and erection of single storey outbuilding to rear

Householder Kingston Upon Thames
9 Oct 2026 Pending Consideration 26/02158/CPU

2 Thetford Road New Malden KT3 5DN

Erection of 2nos. side and 1no. rear dormer roof extension with front rooflights and internal alterations to facilitate loft conversion.

Cert of Lawful Use/Operation - Proposed Kingston Upon Thames
9 Oct 2026 Pending Consideration 26/01844/HOU

17 Mayfair Avenue Worcester Park KT4 7SH

Demolition of rear conservatory and single storey rear extension, detached garage and single storey front porch and erection of single storey rear/sid...

Householder Kingston Upon Thames
9 Oct 2026 Pending Consideration 26/01805/FUL

95 Tolworth Rise North Tolworth KT5 9EP

Demolition of outbuildings and rear conservatory and erection of two storey side and part single/part two storey rear extension. Erection of hip to ga...

Full Application Kingston Upon Thames
9 Oct 2026 Pending Consideration 26/01982/HOU

34 Rose Walk Surbiton KT5 8HS

Erection of a single storey rear extension. (Retrospective)

Householder Kingston Upon Thames
8 Oct 2026 Pending Consideration 26/02154/HOU

36 Norbiton Avenue Kingston Upon Thames KT1 3QR

Erection of single storey rear/side extension

Householder Kingston Upon Thames
7 Oct 2026 Pending Consideration 26/02145/FUL

1 Fassett Road Kingston Upon Thames KT1 2TD

Enlargement of the existing large House in Multiple Occupation (Use Class Sui generis) through erection of part first and second floor rear extensions...

Full Application Kingston Upon Thames
7 Oct 2026 Pending Consideration 26/02144/HOU

25 Fernhill Gardens Kingston Upon Thames KT2 5DL

Conversion of garage into habitable room and erection of single storey part front, single storey rear and first floor part side and rear extensions. E...

Householder Kingston Upon Thames
6 Oct 2026 Pending Consideration 26/02131/CPU

167 Gilders Road Chessington KT9 2EB

Erection of hip to gable and rear dormer roof extension with installation of 3nos. front rooflights to facilitate loft conversion

Cert of Lawful Use/Operation - Proposed Kingston Upon Thames
6 Oct 2026 Pending Consideration 26/02039/FUL

76 Lingfield Avenue Kingston Upon Thames KT1 2TN

Conversion of single dwellinghouse into 2 no. self-contained dwellinghouses (Use Class C3), erection of single storey rear, first floor side and rear ...

Full Application Kingston Upon Thames
6 Oct 2026 Pending Consideration 26/02087/PAEXT

11 Raeburn Avenue Tolworth KT5 9BN

Erection of single storey rear extension (6m in depth, maximum height of 3m and eaves height of 3m)

PA Householder Rear Extension Kingston Upon Thames
6 Oct 2026 Pending Consideration 26/02027/PAEXT

51 Kingsmead Avenue Tolworth KT6 7PP

Erection of single storey rear extension (6m in depth, maximum height of 3m and eaves height of 3m)

PA Householder Rear Extension Kingston Upon Thames
5 Oct 2026 Pending Consideration 26/02119/HOU

15 Hemsby Road Chessington KT9 2DY

Erection of first floor rear/side extension.

Householder Kingston Upon Thames
5 Oct 2026 Pending Consideration 26/02120/HOUF

78 Elgar Avenue Surbiton KT5 9JN

Erection of a single storey front porch extension and alteration to the side fenestration.

Householder - Fast Track Kingston Upon Thames
5 Oct 2026 Pending Consideration 26/02117/PAEXT

63 Barnsbury Crescent Tolworth KT5 9RF

Erection of single storey rear extension (6.00m in depth, maximum height of 3.00m and eaves height of 2.70m)

PA Householder Rear Extension Kingston Upon Thames
2 Oct 2026 Pending Consideration 26/02116/HOU

13 Hawks Road Kingston Upon Thames KT1 3DS

Erection of part two storey/part single storey rear, first floor side extension incorporating a pitched/hipped tiles roof in first floor side extensio...

Householder Kingston Upon Thames
2 Oct 2026 Pending Consideration 26/02125/CPU

107 Latchmere Lane Kingston Upon Thames KT2 5NX

Erection of hip to gable roof extension with rear dormer and juliet balcony and installation of 2nos front rooflights.

Cert of Lawful Use/Operation - Proposed Kingston Upon Thames
2 Oct 2026 Pending Consideration 26/02101/HOU

68 Portland Avenue New Malden KT3 6BA

Erection of a single storey rear extension.

Householder Kingston Upon Thames
1 Oct 2026 Pending Consideration 26/02017/PAEXT

120 Rollesby Road Chessington KT9 2BY

Erection of single storey rear extension (5.50m in depth, maximum height of 2.93m and eaves height of 2.83m)

PA Householder Rear Extension Kingston Upon Thames
30 Sept 2026 Pending Consideration 26/02051/HOU

24 Richmond Park Road Kingston Upon Thames KT2 6AH

Erection of single storey rear/side wrap-around extension, internal alterations and enlargement of the existing basement. Changes to side fenestration...

Householder Kingston Upon Thames
30 Sept 2026 Pending Consideration 26/02023/HOU

44 Elmcroft Drive Chessington KT9 1DU

Change of external materials and finishes to the existing dwelling, including replacement of existing brown clay roof tiles with grey concrete roof ti...

Householder Kingston Upon Thames
30 Sept 2026 Pending Consideration 26/02013/HOU

29 Wolsey Drive Kingston Upon Thames KT2 5DP

Demolition of an existing rear extension, erection of a single storey rear and front porch extension. Internal alteration, removal of chimney breasts,...

Householder Kingston Upon Thames
30 Sept 2026 Pending Consideration 26/01925/HOU

59 Mount Road New Malden KT3 3JY

Erection of single storey rear extension with pitched roof to match existing. Replacement of existing single storey rear extension roof with like for ...

Householder Kingston Upon Thames
29 Sept 2026 Pending Consideration 26/02019/HOU

16 Endway Surbiton KT5 9BT

Demolition of detached garage and rear conservatory. Erection of single storey front porch, part two storey/part single storey side and rear extension...

Householder Kingston Upon Thames
29 Sept 2026 Pending Decision 26/02001/CPU

11 Raeburn Avenue Tolworth KT5 9BN

Erection of hip to gable roof extension and extension to existing rear dormer

Cert of Lawful Use/Operation - Proposed Kingston Upon Thames
28 Sept 2026 Pending Consideration 26/02072/CPU

28 Mount Pleasant Road New Malden KT3 3JZ

Erection of gable end roof extension with rear dormer and installation of 2nos front rooflights. Erection of a single storey detached rear outbuilding...

Cert of Lawful Use/Operation - Proposed Kingston Upon Thames
28 Sept 2026 Pending Decision 26/02077/CPU

1 Hartfield Road Chessington KT9 2PP

Erection of hip to gable and rear dormer roof extension to facilitate loft conversion

Cert of Lawful Use/Operation - Proposed Kingston Upon Thames
28 Sept 2026 Pending Consideration 26/02076/CPU

115 Beresford Avenue Tolworth KT5 9LW

Demolition of rear lean-to and single storey rear extension and erection of single storey rear extension

Cert of Lawful Use/Operation - Proposed Kingston Upon Thames
28 Sept 2026 Pending Consideration 26/01941/HOU

128 Chiltern Drive Surbiton KT5 8LX

Conversion of an existing garage into habitable room. Alteration to external facade, roof and parking.

Householder Kingston Upon Thames
28 Sept 2026 Pending Decision 26/02066/PAEXT

79 Cheshire Gardens Chessington KT9 2PT

Erection of single storey rear extension (4.70m in depth, maximum height of 3.0m and eaves height of 2.80m)

PA Householder Rear Extension Kingston Upon Thames
28 Sept 2026 Approved 9 Oct 26/02000/CPU

35 Howard Road New Malden KT3 4DP

Erection of outbuilding

Cert of Lawful Use/Operation - Proposed Kingston Upon Thames
28 Sept 2026 Pending Consideration 26/01936/HOU

11 Clarence Avenue New Malden KT3 3TZ

Erection of rear dormer roof extension with installation of rooflights to facilitate loft conversion (Part retrospective)

Householder Kingston Upon Thames
28 Sept 2026 Pending Consideration 26/01924/HOU

12 Van Dyck Avenue New Malden KT3 5NQ

Demolition of conservatory and erection of single storey rear extension, first floor side extension, and side dormer roof extension

Householder Kingston Upon Thames
28 Sept 2026 Pending Consideration 26/01896/FUL

7 St James' Road Surbiton KT6 4QH

Replacement of 3nos. casement windows to front elevation and 1no. sash window to rear elevation.

Full Application Kingston Upon Thames
28 Sept 2026 Approved 8 Oct 26/02068/CPUF

16 Groveland Way New Malden KT3 5BT

Erection of hip to gable and rear dormer roof extension with 3nos. front rooflights to facilitate loft conversion

Cert of Lawful Use/Operation - Prop FT Kingston Upon Thames
Recency
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2-4 weeks
1-2 months
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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 Kingston upon Thames?
Yes. Click "Set up alerts" on this page and you'll get a daily or weekly email listing every new extensions application published by Kingston upon Thames. You can also narrow the alert to a postcode, street, or drawn area.

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