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Planning application

12 Stephen Mews London W1T 1AH

Granted Camden 2024/2451/P Full Planning Permission

Works: Extension Small domestic

Read from the description, not a valuation. How we read the register

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Erection of a single storey extension and roof terrace to replace the existing plant housing at roof level. Reconfiguration of front entrance.

As published by the council, reference 2024/2451/P

Application record

Reference
2024/2451/P
Type
Full Planning Permission
Status
Final Decision
Decision
Granted
Received
25 Jun 2024
Validated
23 Jul 2024
Decided
28 Aug 2024
Ward
Bloomsbury
Decision by
Delegated
Postcode
W1T 1AH

Site history

Applications at this address on the Camden register

This site has had 4 applications since 2024: 3 approved, 0 refused.

  • 2025/2304/P Granted

    12 Stephen Mews London W1T 1AH

    Details of condition 4 (materials) of planning permission 2024/2451/P granted 28/08/2024 to 'Erection of a single storey extension and roof terrace to replace the existing plant housing at roof level. Reconfiguration of front entrance'.

    Decided 26 Aug 2025 Full applications
  • 2025/1228/P Granted

    12 Stephen Mews London W1T 1AH

    Replacement of existing 6 x condenser units with 4 x replacement condenser units to flat roof of building, to install active cooling at site.

    Decided 3 Jun 2025 Full applications
  • 2025/2680/P Awaiting decision

    12 Stephen Mews London W1T 1AH

    Installation of three glazed balustrades across the existing double-doors on the front facade.

    Full applications

Timeline

Dates from the published record

  1. 25 Jun 2024

    Received by Camden

  2. 23 Jul 2024

    Validated

    Checked as complete and ready for consideration.

  3. 28 Aug 2024

    Decision issued: Granted

  4. 22 Jul 2026

    Added to PlanIndex

Cases linked to this one on the register

1 later application on the register refers to this one:

  • 2025/2304/P Granted

    12 Stephen Mews London W1T 1AH

    Details of condition 4 (materials) of planning permission 2024/2451/P granted 28/08/2024 to 'Erection of a single storey extension and roof terrace to replace the existing plant housing at roof level. Reconfiguration of front entrance'.

    Decided 26 Aug 2025 Full applications

Documents

Plans, drawings, consultee responses and the officer's report

25 documents 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.

Watch members (£5 a month) open the document list from here.

Open the documents

What this grant of permission means

Camden granted permission on 28 August 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 full applications

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.

Nearby applications

Within 0.3 miles

  • 10 & 11 Percy Street London W1T 1DN

    2013/6982/P 50 yards away

    Installation of air conditioning units on roof (Retrospective)

    Granted Full applications
  • 12 Stephen Mews London W1T 1AH

    2025/2680/P 50 yards away

    92% historically approved

    Installation of three glazed balustrades across the existing double-doors on the front facade.

    Awaiting decision Full applications Windows or glazing
  • 12 Stephen Mews London W1T 1AH

    2025/2304/P 50 yards away

    Details of condition 4 (materials) of planning permission 2024/2451/P granted 28/08/2024 to 'Erection of a single storey extension and roof terrace to replace the existing plant housing at roof level. Reconfiguration of front entrance'.

    Granted Full applications Extension
    Small domestic
  • 10-12 Stephen Mews London W1T 1AQ

    2013/6192/P 50 yards away

    Installation of condenser units on roof of office building (Class B1).

    Granted Full applications
  • 12 Stephen Mews London W1T 1AH

    2025/1228/P 50 yards away

    Replacement of existing 6 x condenser units with 4 x replacement condenser units to flat roof of building, to install active cooling at site.

    Granted Full applications
  • 10-11 Stephen Mews London W1T 1AG

    2020/2090/P 50 yards away

    Relocation of 4 no. condenser units on roof adjacent to existing plant room (north side) and installation of 3 no. new condenser units on roof adjacent to existing plant room (west side).

    Granted Full applications

In Camden

  • 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