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• 2022/0055/L Withdrawn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• 2021/2654/P Withdrawn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• 2021/3457/L Withdrawn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• 2022/0055/L Withdrawn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 50 yards 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  Withdrawn Full applications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 50 yards away

  92% 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 50 yards 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 50 yards 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 50 yards 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 50 yards 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

• 2026/0990/P Refused

  1 Bleeding Heart Yard & 19 Greville Street London EC1N 8SJ

  Change of use from office space and restaurant use (Class E) and members club (Sui Generis) to affordable workspace and restaurant use (Class E) and 1 x residential unit on the third and fourth floors (Class C3). Erection of a two-storey roof extension across 19 Greville Street and 1 Bleeding Heart Yard, including alterations at second-floor level to the interior courtyard elevation, ground-floor fenestration changes, and a roof terrace for the associated residential unit.

  Received 26 Mar, published by the council 24 Jul 2026 Full applications
• 2026/3044/P Granted

  London Irish Centre 50-52 Camden Square London NW1 9XB

  Details to discharge Condition 25 Part A (Air Quality Monitoring) of planning permission ref. 2020/1481/P dated 17/05/24 for 'Redevelopment of site to provide new and reconfigured community centre and ancillary residential accommodation (Class D1/ D2) involving alterations to retained buildings at No's. 50, 51 and 52 Camden Square including replacement of two storey 'link' building; demolition of Murray Street and Murray Mews buildings and replacement with part-three / part-four storey building (plus basement level) with second and third floor terraces and new entrance; associated landscaping and cycle parking'.

  Received 20 Jul, published by the council 2 Aug 2026 Full applications
• 2026/4338/P Awaiting decision

  32 Willoughby Road London NW3 1RU

  Details to discharge condition 6 (tree protection methods) of planning permission 2025/4186/P granted 13/11/2025 for 'Demolition of existing two storey outrigger and replacement with part two-storey, part single storey rear extension, loft conversion with dormer and roof light to main roof at rear, new windows to flanking wall, replacement of existing windows and installation of a gate and fence to side'.

  Received 5 Oct, published by the council 9 Oct 2026 Full applications
• 2026/4141/P Awaiting decision

  24 Endell Street London WC2H 9HQ

  Relocation of three air conditioning condenser units to first floor roof, construction of an acoustic enclosure and other associated works.

  Received 5 Oct, published by the council 9 Oct 2026 Full applications
• 2026/3907/P Awaiting decision

  Flat 1 16 Lyndhurst Road London NW3 5NL

  External renovations to the front of the property, including works to the entry porch, steps, replacment front door, installation of metal railings to boundary wall and paving to front garden and erection of a glass roof to the side passage to create a bike shelter.

  Received 5 Oct, published by the council 9 Oct 2026 Full applications