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Basement And Ground Floor 38 Montagu Square London W1H 2LL

25/09024/ADFULLApproval of Details (Full PP)Refused
Discharge / amendments

Refused on 21 January 2026

Council decision: Application RefusedDelegated (officer decision)

Approximate site (title boundary)
Boundary © HM Land Registry, © Ordnance Survey · details

This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.

Proposal

Details of the new rooflights, demonstrating that these are conservation rooflights pursuant to condition 4 (B) of listed building dated 28th December 2023 (RN: 23/07347/LBC)

Received
12 December 2025
Decision level
Delegated (officer decision)
Ward
Marylebone
Agent
Peek Architecture Ltd
  1. Received12 Dec
  2. Validated12 Dec
  3. Consult.
  4. Target6 Feb
  5. Decided21 Jan

Decided in 40 days (council typically 49)

About this application

This is an application to discharge conditions at Basement And Ground Floor 38 Montagu Square London W1H 2LL. Westminster has handled 3,063 applications of this type. This one was decided in 40 days, 9 days quicker than Westminster's typical decision time. The site is in the Portman Estate conservation area, with 20 listed buildings nearby. There have been 8 other applications at this address. In the past year there have been 171 applications across Marylebone. We hold 896 applications in total for the W1H postcode area.

92% of conditions applications at City of Westminster were approved. Across all application types, the council typically decides in about 7 weeks (median).

Based on decided applications received in the last 3 years.See what's approved near your address

Application details

Postcode
W1H 2LL
Application type
Approval of Details (Full PP)
Scale / size
Small

Planning application dates

Date validated
12 December 2025
Target decision date
6 February 2026

Applicant and agent

Agent
Peek Architecture Ltd
Agent address
9 Lauderdale Parade Maida Vale London W9 1LU

Planning decision

Statutory period
56 days

Additional information

Planning Portal ID
PP-14561754
Comments
0
Documents
5

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Portman Estate
  • Listed building: Grade II: 37-39, Montagu Square W1On this site · +4 more
  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (21)

flood storage areas, tree preservation orders, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.

A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.

Data © Crown copyright and others · sources and licences

Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.

© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.

© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.

Contains Ordnance Survey data © Crown copyright and database right 2026.

Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.

Planning history at this site

8 other applications at this property, newest first.

  1. 2026
    11 Feb

    Variation of Condition 1 and alteration to the wording of Conditions 3 and 4 of planning permission dated 24…

    ApprovedVariation of conditions (s73)26/00837/FULL
  2. 2026
    10 Feb

    Variation of condition 4(b) of listed building consent dated 28 December 2023 (RN 23/07347/LBC

    ApprovedListed building consent26/01422/LBC
  3. 2025
    24 Jan

    Details of new external doors sections and elevations, new rooflights demonstrating that these are…

    ApprovedDischarge of conditions25/00478/ADLBC
  4. 2025
    24 Jan

    Details of the new external doors (sections and elevations at 1:5 and 1:10), new rooflight/s (1:5, 1:10, 1:20…

    ApprovedDischarge of conditions25/00477/ADFULL
  5. 2024
    6 Nov

    Internal alterations to ground and first floor.

    PendingListed building consent24/07759/LBC
  6. 2024
    1 Nov

    Variation of Condition 1 of planning permission dated 28th December 2023 (RN: 23/07346/FULL

    PendingVariation of conditions (s73)24/07664/FULL

Source: Westminster

Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.

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