Planning application
2023/0439/P
21 Mornington Crescent London NW1 7RG
Proposal
Construction of a rear extension at ground level and lower ground floor level.
As published by the council, reference 2023/0439/P
Timeline
Dates from the published record
-
29 Apr 2024
Decision issued: Granted
-
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
-
2024/1729/P Withdrawn
21 Mornington Crescent London Camden NW1 7RG
Erection of outbuilding to the rear of garden for use as a studio office with associated landscaping.
-
2025/4167/P Awaiting decision
Flat A 21 Mornington Crescent London NW1 7RG
Conversion of maisonette into two self contained flats at ground and lower ground, replacement of window with door and infill at lower ground floor and cycle storage to rear
-
2025/0938/L Withdrawn
Flat A, 21 Mornington Crescent Camden London NW1 7RG
Conversion of existing maisonette to two self-contained flats, excavation of existing front cellar vaults to accommodate bathroom and utility room and infill of front lightwell under entrance footbridge
-
2021/2654/P Withdrawn
21 Mornington Crescent London NW1 7RG
Two storey rear extension at lower and ground floor level and associated works and the reconfiguration of the internal layout.
-
2022/0055/L Withdrawn
21 Mornington Crescent London NW1 7RG
Construction of an outbuilding to the rear of garden for the use as a studio office including associated landscaping. See planning permission application 2021/5608/P for associated plans and documents
-
2025/4472/L Awaiting decision
Flat A 21 Mornington Crescent London NW1 7RG
Conversion of maisonette into two self contained flats at ground and lower ground with internal alterations, replacement of window with door and infill at lower ground floor and cycle storage to rear
Other full applications applications
In Camden
-
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)."
-
2026/3202/P Awaiting decision
Flat 1 94 Goldhurst Terrace London NW6 3HS
Erection of a single storey rear extension.
-
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
-
2026/3229/P Awaiting decision
52 Neal Street London WC2H 9PA
Alterations to the shopfront and installation of awnings.
-
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.