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Penthouse Flat Tenby Mansions Nottingham Street London W1U 5ER

21/02993/FULLApplication for full Planning PermissionApproved
Full

Approved on 27 July 2021

Council decision: Application PermittedDelegated (officer decision)

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

Proposal

Replacement of the slate cladding to the rear, replacement of the flat roof, demolition of rear chimney stacks and introduction of new roof windows to the front roof slope and replacement of windows to the rear elevation.

Received
6 May 2021
Decision level
Delegated (officer decision)
Public comments
1
Ward
Marylebone High Street
Agent
Syte Architects
  1. Received6 May
  2. Validated6 May
  3. Consult.
  4. Target1 Jul
  5. Decided27 Jul

Decided in 82 days (council typically 49)

About this application

This is a full planning application for demolition at Penthouse Flat Tenby Mansions Nottingham Street London W1U 5ER. Westminster has handled 4,484 applications of this type. This one was decided in 82 days, 5 weeks longer than Westminster's typical decision time. The site is in the Harley Street conservation area, with 7 listed buildings nearby. There are no previous applications recorded at this address. We hold 1,068 applications in total for the W1U postcode area.

86% of full 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
W1U 5ER
Application type
Application for full Planning Permission
Scale / size
Small

Planning application dates

Date validated
6 May 2021
Consultation expiry
16 June 2021
Target decision date
1 July 2021

Applicant and agent

Agent
Syte Architects
Architect profile
SYTE ARCHITECTS LIMITED
Agent address
10 Golden Square London W1F 9JA

Planning decision

Statutory period
56 days

Publicity

Last advertised
26 May 2021
Advertisement expiry
16 June 2021
Site notice start
17 May 2021
Site notice end
7 June 2021

Additional information

Planning Portal ID
PP-09805091
Documents
19

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: Harley Street
  • 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.

Source: Westminster

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

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