House extensions in Bexley

Bexley received 1,149 householder applications in the last 12 months - about 22 a week. Rear extensions and dormers are the most common. Of the 962 decided so far, 873 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 276 applications
23 Oct 2026 With Case Officer 26/01970/LDCP

6 Yew Tree Close Welling Kent DA16 3BY

Conversion of existing garage to habitable space and erection of single storey side extension.

Lawful Development Certificate-Proposed Bexley
23 Oct 2026 With Case Officer 26/01969/FUL

14 Knoll Road Bexley Kent DA5 1AZ

Alterations to rear and side fenestrations.

Detailed Planning Application Bexley
23 Oct 2026 With Case Officer 26/01967/FUL

5 Manor Way Bexley Kent DA5 3QF

Erection of a single storey rear and side extension and alterations to rear fenestrations following demolition of existing conservatory. Alterations t...

Detailed Planning Application Bexley
23 Oct 2026 With Case Officer 26/01966/FUL

83-89 Maidstone Road Sidcup Kent DA14 5HX

Replacement of windows and doors of all elevations with double-glazed uPVC casements.

Detailed Planning Application Bexley
23 Oct 2026 With Case Officer 26/01963/FUL

1 - 15 Douglas Road Welling Kent DA16 1QY

Replacement of windows and doors of all elevations with double-glazed uPVC casements.

Detailed Planning Application Bexley
23 Oct 2026 With Case Officer 26/01962/FUL

194 Erith Road Bexleyheath Kent DA7 6HT

Erection of single storey outbuilding and alterations to boundary wall.

Detailed Planning Application Bexley
22 Oct 2026 With Case Officer 26/01959/LDCP

34 Lessness Avenue Bexleyheath Kent DA7 5SJ

Lawful Development Certificate (Proposed) for the conversion of garage into habitable space.

Lawful Development Certificate-Proposed Bexley
22 Oct 2026 With Case Officer 26/01954/FUL

55 Montrose Avenue Sidcup Kent DA15 9DT

Erection of a single storey rear extension and conversion of garage to habitable accommodation and store.

Detailed Planning Application Bexley
22 Oct 2026 With Case Officer 26/01945/FUL

40 Belmont Road Erith Kent DA8 1LB

Change of Use from Office (Class E(g)(i)) to Part Office/Part HMO (Class Sui Generis) including extension of existing office building with proposed se...

Detailed Planning Application Bexley
22 Oct 2026 With Case Officer 26/01941/FUL

19 Arbuthnot Lane Bexley Kent DA5 1EH

Erection of a single storey rear/side extension.

Detailed Planning Application Bexley
22 Oct 2026 With Case Officer 26/01928/FUL

7 St Andrews Close London SE28 8NY

Conversion of garage to a habitable room.

Detailed Planning Application Bexley
20 Oct 2026 With Case Officer 26/01939/FUL

6 Swanbridge Road Bexleyheath Kent DA7 5BP

Single storey rear extension and erection of a new front porch following demolition of existing rear utility room.

Detailed Planning Application Bexley
20 Oct 2026 With Case Officer 26/01934/FUL

13 Hilden Drive Erith Kent DA8 2LP

Erection of a single storey rear extension.

Detailed Planning Application Bexley
20 Oct 2026 With Case Officer 26/01925/FUL

7 Victoria Road Erith Kent DA8 3AN

Retention of single storey side extension and erection of garage in rear garden.

Detailed Planning Application Bexley
19 Oct 2026 With Case Officer 26/01936/FUL

64 Townley Road Bexleyheath Kent DA6 7HN

Erection of a single storey rear extension and first floor rear side extension/changes to rear fenestration following demolition of existing conservat...

Detailed Planning Application Bexley
19 Oct 2026 With Case Officer 26/01935/LDCP

24 Ambleside Road Bexleyheath Kent DA7 5DS

Lawful Development Certificate (Proposed) for the conversion of roof space involving alterations to existing roofline, including a hip to gable enlarg...

Lawful Development Certificate-Proposed Bexley
19 Oct 2026 With Case Officer 26/01931/FUL

172 Upton Road South Bexley Kent DA5 1RQ

Erection of a single storey rear extension.

Detailed Planning Application Bexley
19 Oct 2026 With Case Officer 26/01930/FUL

127 Tyrrell Avenue Welling Kent DA16 2BT

Erection of single storey side extension following demolition of existing detached outbuilding.

Detailed Planning Application Bexley
19 Oct 2026 With Case Officer 26/01929/FUL

198 Brook Street Erith Kent DA8 1DZ

Retention of a new boundary fence.

Detailed Planning Application Bexley
19 Oct 2026 With Case Officer 26/01883/FUL

47 Bourne Road Bexley Kent DA5 1LW

Formation of vehicular crossover.

Detailed Planning Application Bexley
19 Oct 2026 With Case Officer 26/01912/LDCP

147 Northdown Road Welling Kent DA16 1NP

Lawful Development Certificate (Proposed) for the erection of a single storey detached garage to rear garden.

Lawful Development Certificate-Proposed Bexley
19 Oct 2026 With Case Officer 26/01916/FUL

32 Axminster Crescent Welling Kent DA16 1HG

Erection of a first floor side extension, a single storey rear extension following demolition of existing conservatory, conversion of roof space invol...

Detailed Planning Application Bexley
19 Oct 2026 With Case Officer 26/01924/LDCP

7 Victoria Road Erith Kent DA8 3AN

Lawful Development Certificate (Proposed) for the conversion of roof space involving alterations to existing roofline, including a rear dormer extensi...

Lawful Development Certificate-Proposed Bexley
19 Oct 2026 With Case Officer 26/01923/FUL

7 Victoria Road Erith Kent DA8 3AN

Erection of part one/part two storey side/rear extension.

Detailed Planning Application Bexley
16 Oct 2026 With Case Officer 26/01848/FUL

16 Springfield Road Bexleyheath Kent DA7 6DX

Erection of a part one/part two storey rear and side extension following demolition of existing conservatory and garage and alterations to existing fr...

Detailed Planning Application Bexley
16 Oct 2026 With Case Officer 26/01920/FUL

99 Danson Crescent Welling Kent DA16 2AS

Erection of a two storey front extension, a part one/part two storey rear extension and a front porch extension.

Detailed Planning Application Bexley
15 Oct 2026 With Case Officer 26/01911/FUL

160 - 162 Mayplace Road East Bexleyheath Kent DA7 6EJ

Erection of single storey rear extension and new walkway to rear, following demolition of existing extension, and storage.

Detailed Planning Application Bexley
15 Oct 2026 With Case Officer 26/01827/FUL

5 Hailey Road Erith Kent DA18 4AA

Installation of eight windows to side fenestrations.

Detailed Planning Application Bexley
15 Oct 2026 With Case Officer 26/01893/FUL

48 Sheridan Road Belvedere Kent DA17 5AR

Erection of part one/part two storey rear and side extension following demolition of existing rear extension.

Detailed Planning Application Bexley
15 Oct 2026 Pending 26/01863/FUL

19 Albany Close Bexley Kent DA5 3ES

Erection of a single storey rear/side extension following demolition of existing garage.

Bexley
14 Oct 2026 With Case Officer 26/01908/FUL

13 Orchard Road Belvedere Kent DA17 5BP

Erection of a single storey rear and side extension following demolition of existing lean-to.

Detailed Planning Application Bexley
14 Oct 2026 With Case Officer 26/01901/FUL

278 Woolwich Road London SE2 0PU

Erection of a two storey side extension and alterations to front fenestration to include a dormer window extension.

Detailed Planning Application Bexley
13 Oct 2026 With Case Officer 26/01902/FUL

45 Marina Drive Welling Kent DA16 3QY

Provision of roof to existing outbuilding.

Detailed Planning Application Bexley
12 Oct 2026 With Case Officer 26/01871/FUL

15 And 15A The Oval Sidcup Kent DA15 9ER

Erection of a single storey rear extension following demolition of existing stock rooms and conversion of roof space including rear dormer extension a...

Detailed Planning Application Bexley
12 Oct 2026 With Case Officer 26/01894/GPDE

283 Hurst Road Bexley Kent DA5 3DZ

The erection of a single storey rear extension which in total (inc previous enlargements) would extend beyond the rear wall of the original house by 5...

General Permitted Development-Extensions Bexley
12 Oct 2026 With Case Officer 26/01892/FUL

10 Rutland Gate Belvedere Kent DA17 6HH

Conversion of garage to habitable room.

Detailed Planning Application Bexley
12 Oct 2026 With Case Officer 26/01898/FUL

29 Hook Lane Welling Kent DA16 2DH

Erection of a part one/ part two storey rear and side extension with raised platform and steps. Conversion of roof space involving alterations to exis...

Detailed Planning Application Bexley
12 Oct 2026 With Case Officer 26/01895/FUL

7 Russell Close Crayford Dartford Kent DA1 4PU

Erection of a single storey side and rear extension following demolition of rear shed.

Detailed Planning Application Bexley
12 Oct 2026 With Case Officer 26/01877/FUL

64 Fendyke Road Belvedere Kent DA17 5DP

Change of use from Residential Dwelling (Class C3) to HMO (Class C4) for a maximum of 5 people with associated refuse storage and cycle parking and er...

Detailed Planning Application Bexley
9 Oct 2026 With Case Officer 26/01398/FUL

121-123 Bellegrove Road Welling Kent DA16 3QS

Retention of six self contained units and conversion of roof space involving alterations from dormer extensions to mansard roof.

Detailed Planning Application Bexley
9 Oct 2026 With Case Officer 26/01886/LDCP

140 Glenview London SE2 0SH

Lawful Development Certificate (Proposed) for the conversion of roof space involving alterations to existing roofline, including a hip to gable enlarg...

Lawful Development Certificate-Proposed Bexley
9 Oct 2026 With Case Officer 26/01884/FUL

44A Grasmere Road Bexleyheath Kent DA7 6PT

Erection of single storey rear extension and conversion of garage to habitable room.

Detailed Planning Application Bexley
9 Oct 2026 With Case Officer 26/01882/FUL

131 Northdown Road Welling Kent DA16 1NP

Erection of part one/part two storey side/rear extension.

Detailed Planning Application Bexley
9 Oct 2026 With Case Officer 26/01880/FUL

82 Rainbow Road Erith Kent DA8 2ED

Conversion of roof space involving alterations to existing roofline, including a dormer extension at rear, a window to flank roof and rooflights to fr...

Detailed Planning Application Bexley
8 Oct 2026 With Case Officer 26/01885/FUL

22 Milford Close London SE2 0DT

Replacement of windows of ground floor flat elevations at front with double-glazed uPVC casements.

Detailed Planning Application Bexley
8 Oct 2026 With Case Officer 26/01875/FUL

68 Blendon Drive Bexley Kent DA5 3AB

Erection of a single storey front and side extension following demolition of existing garage.

Detailed Planning Application Bexley
8 Oct 2026 With Case Officer 26/01872/FUL

76 Hurst Road Sidcup Kent DA15 9AA

Erection of a part one/part two storey side and rear extension following demolition of existing conservatory and garage.

Detailed Planning Application Bexley
8 Oct 2026 With Case Officer 26/01870/FUL

140 Glenview London SE2 0SH

Erection of a part one/part two storey side and rear extension.

Detailed Planning Application Bexley
8 Oct 2026 With Case Officer 26/01869/LDCP

3 Cumberland Drive Bexleyheath Kent DA7 5LA

Lawful Development Certificate (Proposed) for the erection of a single storey rear extension following demolition of existing conservatory.

Lawful Development Certificate-Proposed Bexley
8 Oct 2026 With Case Officer 26/01849/FUL

36 Acacia Way Sidcup Kent DA15 8WW

Alterations to front fenestration of bay window.

Detailed Planning Application Bexley
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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 Bexley?
Yes. Click "Set up alerts" on this page and you'll get a daily or weekly email listing every new extensions application published by Bexley. You can also narrow the alert to a postcode, street, or drawn area.

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