21 Mornington Crescent London NW1 7RG

This site has had 5 applications since 2021: 1 approved, 1 refused.

• 2023/0439/P Granted

  21 Mornington Crescent London NW1 7RG

  Construction of a rear extension at ground level and lower ground floor level.

  Decided 29 Apr 2024 Full applications
• 2022/0055/L Withdrawn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

  Decided 19 Jul 2022 Heritage and listed buildings
• 2021/2654/P Withdrawn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.

  Decided 19 Apr 2022 Full applications
• 2021/3457/L Withdrawn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.

  Decided 19 Apr 2022 Heritage and listed buildings

1. 16 Nov 2021

   Received by Camden

2. 7 Jan 2022

   Validated

   Checked as complete and ready for consideration.

3. 25 Oct 2022

   Decision issued: Refused

4. 22 Jul 2026

   Added to PlanIndex

1 later application on the register refers to this one:

• 2022/0055/L Withdrawn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

  Decided 19 Jul 2022 Heritage and listed buildings

This application is at appeal, which passes the decision from Camden to the planning inspectorate, and the outcome will replace the council's decision. More in our guide to what happens after a planning decision.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• 21 Mornington Crescent London Camden NW1 7RG

  2024/1729/P 0m away

  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  Withdrawn Full applications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

  2025/4167/P Submitted 1 Oct 2025 0m away

  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

  2025/0938/L 0m away

  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

  2021/2654/P 0m away

  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

  2022/0055/L 0m away

  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

  2025/4472/L Submitted 19 Sep 2025 0m away

  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

• 2026/2516/P Withdrawn

  31 Loveridge Road London Camden NW6 2DU

  Amalgamation of the existing three self-contained one-bedroom flats into a single-family dwelling house; demolition and replacement of existing outrigger; erection of a single-storey rear wrap-around extension; erection of a rear dormer extension; creation of a roof terrace above outrigger; replacement of existing windows with timber double glazed units; installation of rooflights to front roofslope; and installation of an air source heat pump in rear garden.

  16 Jun 2026 Full applications
• 2026/3830/P Awaiting decision

  Euston Tower 286 Euston Road London NW1 3DP

  Deed of variation to allow more flexibility with Affordable housing payments for redevelopment of Euston Tower comprising retention of parts of the existing building (including central core, basement and foundations) and erection of a new building incorporating these retained elements, to provide a 32-storey mixed-use building providing offices and research and development floorspace (Class E(g)) and office, retail, café and restaurant space (Class E) and Enterprise Space (Class E/F) at ground and first floors, and associated external terraces; public realm enhancements, including new landscaping and provision of new publicly accessible steps and ramp; short and long stay cycle storage; servicing; refuse storage; plant and other ancillary and associated work.

  4 Sep 2026 Full applications
• 2026/3282/P Granted

  5 Berkley Road London NW1 8XX

  Installation of 1no. above ground gas riser from the basement flat to the meter box at first floor (retrospective)

  31 Jul 2026 Full applications
• 2026/0483/P Granted

  100 Avenue Road London NW3 3HF

  Discharge of details for condition 47 (surface water run off details) of planning permission 2026/0404/P granted on 19/06/2026 for " Variation of conditions (2 plan numbers); 8 (quantum of commercial space); 13 (commercial windows); 15 (Wind Microclimate); 19 (commercial windows); 24 (Air quality); 34 (development quantum); 40 (Circular Economy); 44 (designing out crime); 45 (Fire Strategy); 46 (SuDS); 48 (Community facility removed), 48 (wheelchair units), 49 (TfL health and safety) to planning permission ref. 2025/0852/P (for demolition of building and provision of a mixed-use residential-led development) to secure alterations to the external appearance; internal residential and commercial space layouts; omission of community floorspace and increased affordable housing provision; cycle and car parking; hard and soft landscaping, and other associated amendments”

  9 Feb 2026 Full applications
• 2026/2697/P 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.

  3 Sep 2026 Full applications