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Marylebone Institute School House 29 Cosway Street London NW1 6TH

21/01842/COGADFApproval of Details (Council's own Full)Approved
Discharge / amendments

Approved on 20 May 2021

Council decision: Application PermittedDelegated (officer decision)

Approximate location: the centre of the postcode, not the exact property.

Proposal

Details of samples of the facing materials, sample panels of brickwork, samples of a typical scalloped/ fluted brick facade bay, and details to all new facades pursuant to conditions 4, 6, 7, and 8 of planning permission dated 14 April 2021 (RN:20/08120/COFUL).

Received
23 March 2021
Decision level
Delegated (officer decision)
Ward
Church Street
Agent
Peter Brett Associates LLP
  1. Received23 Mar
  2. Validated25 Mar
  3. Consult.
  4. Target20 May
  5. Decided20 May

Decided in 56 days (council typically 49)

About this application

This is an application to discharge conditions at Marylebone Institute School House 29 Cosway Street London NW1 6TH. Westminster has handled 3,063 applications of this type. This one was decided in 58 days, 9 days longer than Westminster's typical decision time. The site is in the Lisson Grove conservation area, with 4 listed buildings nearby. There have been 4 other applications at this address. In the past year there have been 33 applications across Church Street. We hold 3,181 applications in total for the NW1 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.Planning something similar? See what gets approved on your street

Application details

Postcode
NW1 6TH
Application type
Approval of Details (Council's own Full)
Scale / size
Large

Planning application dates

Date validated
25 March 2021
Target decision date
20 May 2021

Applicant and agent

Agent
Peter Brett Associates LLP
Agent address
33 Bowling Green Lane London EC1R 0BJ United Kingdom

Planning decision

Statutory period
56 days

Additional information

Planning Portal ID
PP-09619678
Comments
0
Documents
163

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations at the address point. Ones next to the site may also apply.

  • Conservation area: Lisson Grove
  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed
  • Brownfield land register: Marylebone Institute School House 29 Cosway Street London NW1 6THRegister site at or near this address · +1 more
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (21)

flood storage areas, listed buildings, 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 and heritage coasts.

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.

Associated applications

  1. 2021
    23 Mar

    Details of samples of the facing materials, sample panels of brickwork, samples of a typical scalloped/…

    This applicationApprovedDischarge of conditions21/01842/COGADF
  2. 2020
    18 Dec

    Variation of condition 1 of planning permission dated 29 March 2019 (RN 17/11404/COFUL

    ApprovedVariation of conditions (s73)Part of20/08120/COFUL

Source: Westminster

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

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