House extensions in Camden

Camden received 530 householder applications in the last 12 months - about 10 a week. Rear extensions and dormers are the most common. Of the 34 decided so far, 32 were approved. If you're planning your own, the applications below show what people nearby applied for and how the council decided.

271 last 90 days
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92 last 30 days
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27 last 14 days

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Showing 50 of 271 applications
2026/2859/P 9 Jul 2026 REGISTERED

Flat 7 14 Netherhall Gardens London NW3 5TH

Use of the flat roof at third floor level as a roof terrace including new metal balustrade and privacy screening.

Camden 9 Jul 2026
2026/2858/P 9 Jul 2026 REGISTERED

90 Flat B Caversham Road London Camden NW5 2DN

Replacement of 6 existing single-glazed timber sash windows with double-glazed timber sash windows at first floor level (3 to front elevation, 3 to re...

Camden 9 Jul 2026
2026/2813/P 9 Jul 2026 REGISTERED

Flat A 7 Hollycroft Avenue London NW3 7QG

Details submitted in relation to condition 4 (green roof) of approved application 2025/5694/P (for: Garage conversion (replacing garage doors with win...

Camden 9 Jul 2026
2026/2824/P 8 Jul 2026 REGISTERED

5 Meadowbank London Camden NW3 3AY

Front roof mansard extension, new fenestration to match throughout, changes to fenestration on front and back. Garage to study conversion. AC on the m...

Camden 8 Jul 2026
2026/2807/P 8 Jul 2026 REGISTERED

13 Menelik Road London NW2 3RR

Dormer roof extension to side (west) elevation of dwellinghouse.

Camden 8 Jul 2026
2026/2789/P 8 Jul 2026 REGISTERED

34 Chalk Farm Road London NW1 8AJ

Erection of ground and lower ground extensions and formation of a new fire exit onto Harmood Street.

Camden 8 Jul 2026
2026/2851/L 7 Jul 2026 REGISTERED

5 Provost Road London NW3 4ST

Repairs to front boundary wall, including repairs to bricks and entrance pillars, and replacement of damaged bricks; replacement of front paving and e...

Camden 7 Jul 2026
2026/2823/P 7 Jul 2026 REGISTERED

14 A to 14H Avenue Road London NW8 6BP

Amendment to the railings forming the pedestrian and vehicular access gates approved under planning permission 2025/4555/P dated 14 January 2026.

Camden 7 Jul 2026
2026/2768/P 7 Jul 2026 REGISTERED

5 Provost Road London NW3 4ST

Repairs to front boundary wall, including repairs to bricks and entrance pillars, and replacement of damaged bricks; replacement of front paving and e...

Camden 7 Jul 2026
2026/2786/P 6 Jul 2026 REGISTERED

94-97 Great Russell Street London WC1B 3LB

Replacement of escape stair gates and installation of railing heads on existing railings.

Camden 6 Jul 2026
2026/2770/P 6 Jul 2026 REGISTERED

17 Colville Place London W1T 2BN

Details required by condition 4 (windows and doors) of planning permission ref: 2025/0223/P dated 19/01/2026 for excavation of lightwell and alteratio...

Camden 6 Jul 2026
2026/2757/P 6 Jul 2026 REGISTERED

29 Adamson Road London NW3 3HT

Installation of a glass balustrade to the existing steps, erection of a garden storage unit, replacement boundary fencing, formation of a paved patio,...

Camden 6 Jul 2026
2026/2767/P 3 Jul 2026 REGISTERED

57 Broomsleigh Street London NW6 1QQ

Erection of a single storey side and rear extension, erection of a first floor rear infill extension, installation of a replacement rear dormer, insta...

Camden 3 Jul 2026
2026/2681/NEW 2 Jul 2026 WITHDRAWN

O'donnell Court, Flat 43 Brunswick Centre London Camden WC1N 1NZ

Installation of a Wet Floor Shower Room

Camden 2 Jul 2026
2026/2745/P 2 Jul 2026 REGISTERED

5 Keats Close London NW3 2RP

Replacement of existing doors and windows and replacement and reconfiguration of openings at ground floor level to the rear.

Camden 2 Jul 2026
2026/2734/P 2 Jul 2026 REGISTERED

40 South Hill Park London NW3 2SJ

New stone finish to the existing front external steps and hardstanding areas serving the upper and lower ground floor entrance areas. Installation of ...

Camden 2 Jul 2026
2026/2714/L 1 Jul 2026 REGISTERED

4 Basement Flat Lyme Street London Camden NW1 0EH

Repairs to front entrance landing and stairs to raised ground floor entrance, addition of ACO drains. replacement of non-breathable paint/render on se...

Camden 1 Jul 2026
2026/2712/P 1 Jul 2026 REGISTERED

Top Front Flat 93 Regent's Park Road London NW1 8UR

Erection of a roof extension incorporating rear dormer window and two rooflights to front.

Camden 1 Jul 2026
2026/2706/L 1 Jul 2026 REGISTERED

7 Flat Basement And Ground Floor Acton Street London Camden WC1X 9LX

Internal and external works.

Camden 1 Jul 2026
2026/2698/P 1 Jul 2026 REGISTERED

32 Ryland Road London NW5 3EH

Manufacturer details of facing materials required by condition 4 of planning permission 2025/5891/P approved 08/05/2026 for the erection of single sto...

Camden 1 Jul 2026
2026/2711/P 30 Jun 2026 REGISTERED

1 Belmont Court Loudoun Road London NW8 0AN

Erection of a first floor side extension and relocation of an existing A/C unit above the roof of the proposed extension with associated screening.

Camden 30 Jun 2026
2026/2727/P 30 Jun 2026 REGISTERED

26 Winchester Road London NW3 3NT

Amalgamation of 2 flats to form a single dwellinghouse (Class C3)

Camden 30 Jun 2026
2026/2703/P 29 Jun 2026 REGISTERED

22B Ellerdale Road London NW3 6BB

Erection of a ground floor rear extension.

Camden 29 Jun 2026
2026/2688/L 29 Jun 2026 REGISTERED

UCL Main Building Portico Gower Street London WC1E 6BT

Installation of 10no. modular lights to the Portico Columns, and associated works.

Camden 29 Jun 2026
2026/2684/P 29 Jun 2026 REGISTERED

Mid City Place 71 High Holborn London WC1V 6EA

Installation of door and louvre at 6th floor level on East elevation

Camden 29 Jun 2026
2026/2678/P 29 Jun 2026 REGISTERED

Flat 2nd And 3rd Floor 15 Denning Road London NW3 1ST

Replacement of two timber sash windows on the front elevation and one timber sash window on the rear elevation

Camden 29 Jun 2026
2026/2675/P 29 Jun 2026 REGISTERED

Banyan House Lithos Road London NW3 6ES

Replacement of single-glazed timber frame windows and doors on front, rear and side elevations with double-glazed aluminium frame windows and doors.

Camden 29 Jun 2026
2026/2594/P 25 Jun 2026 Pending

Flat 1 132 Abbey Road London NW6 4SN

Retrospective replacement of like-for-like front bay window.

Camden 25 Jun 2026
2026/2409/INVALID 25 Jun 2026 Pending

128 St Pancras Way London Camden NW1 9NB

Rear Extension and Internal Layout Amended

Camden 25 Jun 2026
2026/2371/INVALID 25 Jun 2026 Pending

13a Fraser Regnart Court Southampton Road London Camden NW5 4HU

Convert Bathroom into a Wet Floor Shower Room

Camden 25 Jun 2026
2026/2667/P 25 Jun 2026 REGISTERED

Flat A 67 Leverton Street London NW5 2NX

Erection of a rear side-infill extension and replacement of 1No. ground floor window at rear.

Camden 25 Jun 2026
2026/2666/L 25 Jun 2026 Pending

Horse Hospital The Stables Market Chalk Farm Road London NW1 8AH

Removal of existing blinds, installation of new glazing to existing first floor terrace canopy structure, new glazed roof, new doors, new flooring and...

Camden 25 Jun 2026
2026/2638/P 25 Jun 2026 REGISTERED

43 Arlington Road London NW1 7ES

Erection of an outbuilding in rear garden with associated steps

Camden 25 Jun 2026
2026/2607/P 25 Jun 2026 Pending

Horse Hospital The Stables Market Chalk Farm Road London NW1 8AH

Removal of existing blinds, installation of new glazing to existing first floor terrace canopy structure, new glazed roof, new doors, new flooring and...

Camden 25 Jun 2026
2026/2411/P 25 Jun 2026 Pending

Sherrifs House 14 Long Yard London WC1N 3LU

Alterations to flat roof covering with increase in roof height.

Camden 25 Jun 2026
2026/2365/P 25 Jun 2026 Pending

49 Arlington Road London Camden NW1 7ES

Replacement of existing damaged fence for a new brickwork garden wall and the removal of trees; G1, T1, T2 and T3

Camden 25 Jun 2026
2026/2356/L 25 Jun 2026 Pending

49 Arlington Road London Camden NW1 7ES

Replacement of existing damaged fence for a new brickwork garden wall and the removal of trees G1, T1, T2 and T3.

Camden 25 Jun 2026
2026/2610/P 24 Jun 2026 REGISTERED

16 Endell Street London WC2H 9BD

Replacement windows to upper floor levels.

Camden 24 Jun 2026
2026/2588/P 24 Jun 2026 Pending

14 Well Road London Camden NW3 1LH

Replacement of the front door, with a new door within the same opening.

Camden 24 Jun 2026
2026/2571/P 24 Jun 2026 Pending

Flat A 47 King Henry's Road London NW3 3QR

Erection of a rear outbuilding.

Camden 24 Jun 2026
2026/2569/P 24 Jun 2026 Pending

16 Gladys Road London NW6 2PX

Amalgamation of two flats.

Camden 24 Jun 2026
2026/2552/L 24 Jun 2026 Pending

60 Albert Street London NW1 7NR

Replacement of windows and doors and removal of existing rooflight with reinstatement of roof joists at rear ground floor.

Camden 24 Jun 2026
2026/2551/P 24 Jun 2026 Pending

60 Albert Street London NW1 7NR

Replacement of windows and doors and removal of existing rooflight with reinstatement of roof joists at rear ground floor.

Camden 24 Jun 2026
2026/2498/P 24 Jun 2026 Pending

Mid City Place 71 High Holborn London Camden WC1V 6EA

Insertion of a new double door on the eastern elevation of the building and hard landscaping, planters and seating within the landscaped Hand Court ar...

Camden 24 Jun 2026
2026/2460/L 24 Jun 2026 Pending

1st Floor flat 22 Conway Street London Camden W1T 6BF

Removal and repositioning of modern timber and plasterboard partitions.

Camden 24 Jun 2026
2026/2600/L 23 Jun 2026 Pending

6-7 Stone Buildings London WC2A 3SZ

Alterations to internal building fabric at ground and basement levels and replacement of an existing air conditioning condenser at lower ground floor ...

Camden 23 Jun 2026
2026/2595/P 23 Jun 2026 Pending

Garden Flat 109 King Henry's Road London NW3 3QX

Erection of a single storey rear extension to garden flat.

Camden 23 Jun 2026
2026/2549/P 23 Jun 2026 Pending

16 Brocas Close London NW3 3LD

Replacement of ground floor garage shutter door with window above and solid masonry wall below.

Camden 23 Jun 2026
2026/2640/L 23 Jun 2026 Pending

22 Winscombe Street London N19 5DG

Replacement of single door in rear elevation of artist's studio with fully glazed opening comprising sliding door and fixed glazed side panel.

Camden 23 Jun 2026
2026/2604/P 23 Jun 2026 Pending

22 Winscombe Street London N19 5DG

Replacement of single door in rear elevation of artist's studio with fully glazed opening comprising sliding door and fixed glazed side panel.

Camden 23 Jun 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 Camden?
Yes. Click "Set up alerts" on this page and you'll get a daily or weekly email listing every new extensions application published by Camden. You can also narrow the alert to a postcode, street, or drawn area.

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