Proposal
Alteration to rear slope of existing mansard roof to provide additional living space; erection of glazed roof access extension; installation of four obscure glazed windows to rear elevation; other alterations to front facade
As published by the council, reference 2016/6553/P
Timeline
Dates from the published record
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15 Feb 2017
Decision issued: Granted
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22 Jul 2026
Added to PlanIndex
What a grant of permission means
The process from here
Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.
Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.
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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2017/2916/P Granted
4 Princess Mews London NW3 5AP
Details of materials of glazed roof structure in relation to condition 5 of planning permission 2016/6553/P (dated 15/02/2017) for Alteration to rear slope of existing mansard roof; erection of glazed roof access extension; and other alterations
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2018/3842/P Granted
4 Princess Mews London NW3 5AP
Installation of 1 air-conditioning unit and associated acoustic enclosure on roof terrace (retrospective)
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2026/2009/P Granted
3 Princess Mews London NW3 5AP
Removal of rear roofslope to extend the second floor and enlarge the roof terrace above, replacement access structure to roof and new second floor window to rear wall.
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2025/0037/P Granted
6 Princess Mews London NW3 5AP
Replacement of existing timber garage doors and front door with timber door and cladding, conversion of existing garage into habitable space and erection of glazed roof access structure.
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2018/2824/P Refused
54 Belsize Lane London NW3 5AR
Change of use from Launderette (Sui Generis) to shop (Class A1).
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2017/3412/P Granted
56 Belsize Lane London NW3 5AR
Removal of condition 3 (personal permission) of planning permission ref: 2014/3227/P (dated 24/07/2014 ) for the change of use from retail (A1) to a veterinary surgery (sui generis).
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.