House extensions in Greenwich

Greenwich received 890 householder applications in the last 12 months - about 17 a week. Rear extensions and dormers are the most common. Of the 642 decided so far, 493 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 296 applications
7 Sept 2026 Registered 26/2634/PN1

85 Calvert Road, Greenwich, London, SE10 0DG

Prior Approval for the construction of a single-storey rear extension which will extend beyond the rear wall of the original dwelling by 5.36m, for wh...

Prior Notification Greenwich
7 Sept 2026 Registered 26/2605/CP

7 Glendale Close, London, SE9 1RG

Certificate of Lawfulness (Proposed) is sought for loft conversion with hip-to-gable and rear dormer extension.

Cert. of Lawful Use/Dev - PROPOSED Greenwich
4 Sept 2026 Registered 26/2307/L

16 Hallgate, Blackheath Park, Blackheath, London, SE3 9SG

Replacement of existing single glazed timber windows and French doors with new timber framed windows and doors incorporating slim profile vacuum doubl...

Listed Building Consent Greenwich
4 Sept 2026 Registered 26/2306/F

16 Hallgate, Blackheath Park, Blackheath, London, SE3 9SG

Replacement of existing single glazed timber windows and French doors with new timber framed windows and doors incorporating slim profile vacuum doubl...

Full Planning Permission Greenwich
4 Sept 2026 Registered 26/2485/HD

13 Kemsing Road, Greenwich, London, SE10 0LL

Construction of a single storey side and rear extension in brick and replacement of existing dwarf wall with a bike and bin storage to the front..

Householders Greenwich
4 Sept 2026 Registered 26/2598/PN1

173 Eltham Palace Road, Eltham, London, SE9 5NA

Prior Approval for the construction of a single-storey rear extension which will extend beyond the rear wall of the original dwelling by 6.00m, for wh...

Prior Notification Greenwich
4 Sept 2026 Registered 26/2380/HD

23 Braddyll Street, Greenwich, London, SE10 9AE

Replacement of the existing windows and doors with new like-for-like replacements.

Householders Greenwich
4 Sept 2026 Registered 26/2412/F

Flat A - 34 Elliscombe Road, Charlton, London, SE7 7PY

Erection of a single storey extension and all associated works.

Full Planning Permission Greenwich
4 Sept 2026 Registered 26/2559/HD

69 Welton Road, Plumstead, London, SE18 2JE

Construction of first floor side extension and associated works.

Householders Greenwich
4 Sept 2026 Registered 26/1993/F

66a Court Road, Eltham, London, SE9 5NP

Planning permission is sought for replacement of windows and installation of a new window to the rear elevation and internal alterations.

Full Planning Permission Greenwich
4 Sept 2026 Registered 26/2505/HD

28 West Park, Eltham, London, SE9 4RQ

Construction of ground floor rear extension with associated works.

Householders Greenwich
4 Sept 2026 Registered 26/2553/CP

358 Wickham Lane, Plumstead, London, SE2 0NZ

Certificate of Lawfulness (Proposed) is sought for construction of a rear dormer extension to the existing roof slope and installation of three roofli...

Cert. of Lawful Use/Dev - PROPOSED Greenwich
4 Sept 2026 Registered 26/2576/CP

94 Eglinton Road, Woolwich, London, SE18 3SY

Certificate of Lawfulness (Proposed) is sought for L- shaped dormer with front roof lights.

Cert. of Lawful Use/Dev - PROPOSED Greenwich
4 Sept 2026 Registered 26/2381/HD

30 Wernbrook Street, Plumstead, London, SE18 7RX

The replacement of the existing windows and doors with new like-for-like replacements.

Householders Greenwich
4 Sept 2026 Registered 26/2398/L

25 Gloucester Circus, Greenwich, London, SE10 8RY

Construction of mansard roof extension and loft conversion with associated demolition; internal works including demolition and creation of partitions,...

Listed Building Consent Greenwich
4 Sept 2026 Registered 26/2483/HD

6 Crouch Croft, Eltham, London, SE9 3HX

Proposed construction of rear extension with associated works.

Householders Greenwich
4 Sept 2026 Registered 26/2534/PN1

112 Broad Walk, Kidbrooke, London, SE3 8ND

Prior Approval for the construction of a single-storey rear extension which will extend beyond the rear wall of the original dwelling by 6.00m, for wh...

Prior Notification Greenwich
4 Sept 2026 Registered 26/2546/PN1

32 Lambarde Avenue, Eltham, London, SE9 3HQ

Prior Approval for the construction of a single-storey rear extension which will extend beyond the rear wall of the original dwelling by 3.30m, for wh...

Prior Notification Greenwich
4 Sept 2026 Registered 26/2266/F

1 Warspite Road, London, SE18 5PG

Construction of a two-storey rear extension at first and second floor level and roof extension to facilitate an additional six HMO rooms with an addit...

Full Planning Permission Greenwich
4 Sept 2026 Registered 26/2240/HD

50 Sutcliffe Road, Plumstead, London, SE18 2NG

The replacement of the existing windows with new double glazed PVCu units, front entrance door with a new composite set and rear door with a new PVCu ...

Householders Greenwich
4 Sept 2026 Registered 26/2242/HD

121 Benares Road, Plumstead, London, SE18 1HU

The replacement of the existing windows with new double glazed PVCu units, front entrance door with a new composite set and rear door with a new PVCu ...

Householders Greenwich
4 Sept 2026 Registered 26/2273/HD

78 Christchurch Way, Greenwich, London, SE10 0AE

Replacement of all windows and doors with associated works.

Householders Greenwich
1 Sept 2026 Registered 26/2527/HD

112 Kidbrooke Park Road, Kidbrooke, London, SE3 0DX

An erection of a single-storey rear extension and associated raised patio.

Householders Greenwich
31 Aug 2026 Registered 26/2323/HD

2 Woodbrook Road, Plumstead, London, SE2 0PF

Retrospective construction of a garden shed and associated works.

Householders Greenwich
28 Aug 2026 Registered 26/2033/HD

7 Orlop Street, Greenwich, London, SE10 9AB

Replacement of the existing windows and doors with new like-for-like replacements.

Householders Greenwich
28 Aug 2026 Registered 26/2137/HD

70 Little Heath, Charlton, London, SE7 8BH

Installation of a drop kerb.

Householders Greenwich
28 Aug 2026 Registered 26/2397/HD

25 Gloucester Circus, Greenwich, London, SE10 8RY

Construction of mansard roof extension and loft conversion with associated demolition; external repair works and refurbishment and all associated work...

Householders Greenwich
28 Aug 2026 Registered 26/2547/PN1

33 Keynsham Road, Eltham, London, SE9 6QE

Prior Approval for the construction of a single-storey rear extension which will extend beyond the rear wall of the original dwelling by 4.00m, for wh...

Prior Notification Greenwich
27 Aug 2026 Registered 26/2446/F

14 Bournewood Road, Plumstead, London, SE18 2AU

Change of use of from a single dwellinghouse (Use Class C3) to a small HMO (Use Class C4) up to six persons including the erection of a single storey ...

Full Planning Permission Greenwich
26 Aug 2026 Registered 26/2411/HD

65 Vanbrugh Park, Blackheath, London, SE3 7JQ

Replacement of door and window on the lower ground rear elevation with a double- glazed timber window and door, replacement of all windows and doors w...

Householders Greenwich
26 Aug 2026 Registered 26/2502/CP

44 Camrose Street, Abbey Wood, London, SE2 0JA

Certificate of Lawfulness (Proposed) is sought for loft conversion.

Cert. of Lawful Use/Dev - PROPOSED Greenwich
25 Aug 2026 Registered 26/2513/HD

270 Broad Walk, Kidbrooke, London, SE3 8NQ

Construction of a part-single, part-two-storey rear extension and a hip roof over the two-storey side extension. Replacement of windows, doors, and ex...

Householders Greenwich
25 Aug 2026 Registered 26/2514/HD

16 Glenshiel Road, Eltham, London, SE9 1AQ

Construction of a single-storey rear infill extension incorporating the installation of rooflights, and alterations to the patio with associated works...

Householders Greenwich
25 Aug 2026 Registered 26/2437/HD

53 Colepits Wood Road, Eltham, London, SE9 2QJ

Construction of a single storey rear extension, first floor side extension, garage conversion to a habitable room and a rear domer loft conversion wit...

Householders Greenwich
25 Aug 2026 Registered 26/2480/HD

14 Farnaby Road, Eltham, London, SE9 6BG

Demolition of the existing conservatory and construction of a single-storey, part two-storey rear extension, incorporating the installation of a roof ...

Householders Greenwich
24 Aug 2026 Registered 26/2509/CP

18 Paget Rise, Plumstead, London, SE18 3QQ

Certifcate of Lawfulness (Proposed) is sought for construction of a rear dormer and front roof light as per the GPDO.

Cert. of Lawful Use/Dev - PROPOSED Greenwich
24 Aug 2026 Registered 26/2251/F

23 Crosier Close, Kidbrooke, London, SE3 8NT

Change of use of the existing annex as a self-contained dwelling, with no internal or external alterations.

Full Planning Permission Greenwich
24 Aug 2026 Registered 26/2413/F

Flat B - 34 Elliscombe Road, Charlton, London, SE7 7PY

Erection of an L-shaped dormer loft conversion and all associated works.

Full Planning Permission Greenwich
24 Aug 2026 Registered 26/2344/L

33-36 King William Walk, Greenwich, London, SE10 9HU

Works to existing parapet wall for the addition of lead capping.

Listed Building Consent Greenwich
24 Aug 2026 Registered 26/2343/F

33-36 King William Walk, Greenwich, London, SE10 9HU

Works to existing parapet wall for the addition of lead capping.

Full Planning Permission Greenwich
21 Aug 2026 Registered 26/2073/HD

22 Halsbrook Road, Kidbrooke, London, SE3 8QY

Construction of a single storey rear extension and associate works.

Householders Greenwich
21 Aug 2026 Registered 26/2489/PN1

14 Farnaby Road, Eltham, London, SE9 6BG

Prior Approval for the construction of a single storey rear extension which will extend beyond the rear wall of the original dwelling by 5.00m, for wh...

Prior Notification Greenwich
21 Aug 2026 Registered 26/2497/CP

37 Liffler Road, Plumstead, London, SE18 1AU

Certificate of Lawfulness (Proposed) is sought for erection of a rear roof extension on the main roof and on the roof of the outrigger.

Cert. of Lawful Use/Dev - PROPOSED Greenwich
21 Aug 2026 Registered 26/2440/HD

161 Bexley Road, Eltham, London, SE9 2PR

Construction of rear first floor extension and front single storey extension , entrance door canopy , conversion of existing roof space into habitable...

Householders Greenwich
21 Aug 2026 Registered 26/2503/PN1

44 Camrose Street, Abbey Wood, London, SE2 0JA

Prior Approval for the construction of a single-storey rear extension which will extend beyond the rear wall of the original dwelling by 6.00m, for wh...

Prior Notification Greenwich
20 Aug 2026 Registered 26/1188/HD

11 Streamdale, Abbey Wood, London, SE2 0PD

Loft conversion with alterations to roofline incorporating a front dormer and associated works.

Householders Greenwich
20 Aug 2026 Registered 26/1460/F

30 Peterstone Road, London, SE2 9XY

Construction of a single-storey rear extension to create a kitchen for the ground floor flat.

Full Planning Permission Greenwich
20 Aug 2026 Registered 26/2436/HD

96 Bramshot Avenue, Charlton, London, SE7 7JN

Restoration of the existing shopfront, alterations to the side extension, new rear patio doors and rooflights, and installation of an air source heat ...

Householders Greenwich
20 Aug 2026 Registered 26/1365/HD

11 Streamdale, Abbey Wood, London, SE2 0PD

Construction of a single storey rear extension.

Householders Greenwich
20 Aug 2026 Registered 26/2482/CP

3 Abbey Wood Road, Abbey Wood, London, SE2 9ED

Certificate of lawfulness (proposed) is sought for conversion of roof space including formation of a rear dormer and outrigger and skylights to front ...

Cert. of Lawful Use/Dev - PROPOSED Greenwich
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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 Greenwich?
Yes. Click "Set up alerts" on this page and you'll get a daily or weekly email listing every new extensions application published by Greenwich. You can also narrow the alert to a postcode, street, or drawn area.

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