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8 Montagu Mews North London W1H 2JU

24/01980/NMANon-material amendmentsAwaiting decision
Discharge / amendments
Approximate location: the centre of the postcode, not the exact property.

Proposal

Amendments to planning permission dated 28th April 2023 (RN 23/02830/FULL) for the Erection of mansard roof at no.8 to extend existing single family dwelling, and re-demising of rear sunroom and courtyard from no.8 to no.7 to be used association with the existing single family dwelling at no.7. Installation of new windows and door on the side elevation and new windows and doors on front. NAMLEY, The internal layouts of have been reconfigured; On the South Elevation, the windows, doors and shutters at ground floor level have been amended. The previously consented scheme had timber windows, doors and shutters that required a large aperture to be formed down to ground level. The proposed scheme now shows timber sash windows with the aperture only around 1000mm from street level; On the West Elevation, the arrangement of windows and door at ground level have been amended. The previously consented scheme had a significantly larger amount of glazing and timber panelling, whereas the proposed scheme lowers the existing window opening and the extent of timber panelling has been reduced; On the West Elevation, the arrangement of windows at first floor have been amended. The previously consented scheme increased the sizes of existing openings to install larger windows, whereas the proposed scheme has new windows installed in the existing openings; Generally, the arrangement of the timber sash windows has been amended from 6 over 6 sash to 3 over 3 sash; The rooflight positions have been amended to suit the reconfigured second floor layout and upstands have been added so the roof lights can be installed following the manufacturer's recommendations; On the South Elevation at ground floor level, the previously consented window opening has been removed; On the East Courtyard Elevation the surface mounted pipe has been removed; In summary, the amendments to the scheme propose less demolition and less change to the existing condition than the consented 23/02830/FULL application.

Received
22 March 2024
Decision due
19 April 2024
Ward
Marylebone
Agent
TDO Architecture
  1. Received22 Mar
  2. Validated22 Mar
  3. Consult.
  4. Target19 Apr
  5. Decided

About this application

This is an application to amend a permission at 8 Montagu Mews North London W1H 2JU. Westminster has handled 604 applications of this type. It has been with the council since 22 March 2024 and is still awaiting a decision. The site is in the Portman Estate conservation area, with 20 listed buildings nearby. There have been 3 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.

88% of amendment 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
W1H 2JU
Application type
Non-material amendments
Scale / size
Small

Planning application dates

Date validated
22 March 2024

Applicant and agent

Agent
TDO Architecture
Agent address
80 Great Suffolk Street London SE1 0BE

Planning decision

Statutory period
28 days

Additional information

Planning Portal ID
PP-12912593
Comments
0
Documents
15

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: Portman Estate
  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (22)

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, 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.

Associated applications

  1. 2024
    22 Mar

    Amendments to planning permission dated 28th April 2023 (RN 23/02830/FULL

    This applicationPendingNon-material amendment24/01980/NMA
  2. 2024
    20 Mar

    Demolition of existing one bedroom dwelling (7 Montagu Mews North) and replacement with a new three bedroom…

    PendingFull Planning Permission ApplicationFiled alongside24/01842/FULL

Source: Westminster

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

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