Planning application
2025/0384/P
17 Belsize Park Mews London Camden NW3 5BL
Proposal
Single-storey roof extension. Including alterations to the front elevation fenestration.
As published by the council, reference 2025/0384/P
Timeline
Dates from the published record
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22 Jul 2026
Added to PlanIndex
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Decision
Awaiting decision
The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.
What happens while it is decided
The process from here
This application is with Camden for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
About full applications applications
How this application type works
A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.
Nearby applications
Within 500 metres
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2018/1593/P Granted
17 Belsize Park Mews London NW3 5BL
Details of external facing materials and manufacturers details as required by condition 4 of planning permission ref: 2017/6728/P dated 06/03/2018 (Alterations to the front elevation of the building to include new brickwork to the front facade, replacement windows and front entrance door, conversion of garage to habitable room with new garage door, and insertion of two new roof lights).
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2017/6728/P Granted
17 Belsize Park Mews London NW3 5BL
Alterations to the front elevation of the building to include new brickwork to the front facade, replacement windows and front entrance door, conversion of garage to habitable room with new garage door, and insertion of two new roof lights.
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2026/2015/P Granted
1 Baynes Mews London NW3 5BH
Erection of rear dormers, creation of sunken roof terrace, installation of rooflights and replacement of garage door.
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2023/3492/P Granted
15 Belsize Park Mews London NW3 5BL
Erection of roof extension, new basement level, alterations to fenestration and associated works.
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2017/6198/P Granted
3 Belsize Park Mews LONDON NW3 5BL
Erection of extension at roof level
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2023/1043/P Granted
3 Baynes Mews London NW3 5BH
Garage conversion into habitable space and continued use of the property as a single dwellinghouse, installation and replacement of windows on the front elevation at first floor level and replacement of the front door and garage doors at ground floor level.
Other full applications applications
In Camden
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2026/0743/P Granted
34-42 Middlesex House Cleveland Street London W1T 4JE
Details pursuant to Condition 6 (Living Roof) of planning permission 2024/2020/P granted on 12/09/2024 "(Minor refurbishment and rooftop works including: upgraded entrance and reception area; new cycle storage and associated end of trip facilities; new/replaced rooftop plant and plant enclosures; creation of a rooftop amenity area with pavilion structure; hard and soft rooftop landscaping; and all associated and ancillary works)."
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2026/3202/P Awaiting decision
Flat 1 94 Goldhurst Terrace London NW6 3HS
Erection of a single storey rear extension.
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2026/0335/P Granted
216A West End Lane London NW6 1UX
Conversion of 1 x 7 bedroom flat (C3) and 1 x 2 bedroom flat (C3) to 1 x 7 bedroom House in Multiple Occupation (Sui-generis) and 1 x 1 bedroom flat (C3) and installation of four rooflights
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2026/3229/P Awaiting decision
52 Neal Street London WC2H 9PA
Alterations to the shopfront and installation of awnings.
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2026/2160/P Granted
120 College Place London NW1 0DJ
Erection of a rear roof extension, formation of a rear roof terrace and installation of 2x rooflights to front roof slope, and associated works.