Planning application
21 Mornington Crescent London Camden NW1 7RG
Works: Extension
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Construction of a rear extension at ground level and lower ground floor level and reconfiguration of internal layout at lower ground and ground floor level.
As published by the council, reference 2023/0735/L
Application record
- Reference
- 2023/0735/L
- Type
- Listed Building Consent
- Status
- Final Decision
- Decision
- Granted
- Received
- 31 Jan 2023
- Validated
- 21 Feb 2023
- Decided
- 29 Apr 2024
- Ward
- Regents Park
- Decision by
- Members Briefing
- Postcode
- NW1 7RG
Site history
Applications at this address on the Camden register
This site has had 2 applications since 2023: 1 approved, 0 refused.
-
2024/1729/P Withdrawn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.
Timeline
Dates from the published record
-
31 Jan 2023
Received by Camden
-
21 Feb 2023
Validated
Checked as complete and ready for consideration.
-
29 Apr 2024
Decision issued: Granted
-
22 Jul 2026
Added to PlanIndex
Documents
Plans, drawings, consultee responses and the officer's report
1 document on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Trade members open them from here.
Open the documentsWhat this grant of permission means
Camden granted permission on 29 April 2024, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.
About heritage and listed building applications
Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.
Nearby applications
Within 500 metres
-
21 Mornington Crescent London Camden NW1 7RG
Erection of outbuilding to the rear of garden for use as a studio office with associated landscaping.
Withdrawn Full applications -
Flat A 21 Mornington Crescent London NW1 7RG
91% historically approved · decision due ~2 Dec
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
Awaiting decision Full applications New dwelling Extension +1 8 docs -
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
Withdrawn Heritage and listed buildings New dwelling Extension -
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.
Withdrawn Full applications Extension -
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
Withdrawn Heritage and listed buildings -
Flat A 21 Mornington Crescent London NW1 7RG
96% historically approved · decision due ~2 Dec
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
Awaiting decision Heritage and listed buildings New dwelling Extension +1 1 doc
Other heritage and listed building applications
In Camden
-
2026/0825/L Granted
88 Frognal London NW3 6XB
Discharge of condition 4 (a) Plan, elevation and section drawings of all new internal doors at a scale of 1:10 with typical moulding and architrave details at a scale of 1:1. b) Plan, elevation and section drawings, including jambs, head and cill, of all new windows and doors, including garage doors and windows, at a scale of 1:10 with typical glazing bar details at 1:1) of 2025/3436/L (External works comprising demolition of existing conservatory and erection of single-storey ground floor extension; demolition of existing garage and erection of replacement garage; alterations and repairs to roof; repair and minor alterations to building facade; provision of new hard and soft landscaping. Interior works comprising general remodelling works; minor changes to planform and openings; installation of new mechanical and electrical services throughout)
-
2026/2946/L Awaiting decision
Flat 1, 73 Eton Avenue London NW3 3EU
Replacement of existing defective rear lean-to conservatory with a new slimline powder-coated aluminium framed conservatory with clear double glazing, on the exact same footprint as existing.
-
2026/3754/L Awaiting decision
10 Great Ormond Street London Camden WC1N 3RB
Coversion of 3 flats into 4 and internal alterations to the listed building
-
2026/2194/L Withdrawn
Dunboyne Road Estate Dunboyne Road London NW3 2YY
Installation of Air Source and Water Source Heat Pumps in basement car park with associated acoustic and security enclosures; installation of PV Panels on roof of Blocks 1, 2 and 3; removal of existing gas boilers and associated plant; installation of a new estate-wide heating network including Heat Interface Units, radiators, pipework and associated infrastructure to serve Flats 1-71; excavation of trenches and installation of below-ground heating, water and electrical infrastructure; and associated ancillary works.
-
2026/3773/L Awaiting decision
47 Kelly Street London NW1 8PG
Replacement of concrete roof tiles with slate roof tiles (Retrospective)