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100 Parliament Street London SW1A 2BQ

17/09009/LBCListed Building Consent ApplicationApproved
Discharge / amendments

Approved on 21 November 2017

Council decision: Application PermittedDelegated (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

Variation of Condition 1 of listed building consent dated 23 December 2016 (RN: 16/10603) for 'Installation of secondary glazing, internal alterations and installation of new rooftop plant'. Namely, to allow internal alterations.

Received
10 October 2017
Decision level
Delegated (officer decision)
Ward
St James's
  1. Received10 Oct
  2. Validated10 Oct
  3. Consult.
  4. Target5 Dec
  5. Decided21 Nov

Decided in 42 days (council typically 49)

About this application

This is a heritage application for window replacement at 100 Parliament Street London SW1A 2BQ. Westminster has handled 2,677 applications of this type. This one was decided in 42 days, 7 days quicker than Westminster's typical decision time. The site is in the Whitehall conservation area, with 19 listed buildings nearby. There have been 12 other applications at this address. In the past year there have been 478 applications across St James's. We hold 1,263 applications in total for the SW1A postcode area.

93% of heritage 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
SW1A 2BQ
Application type
Listed Building Consent Application
Scale / size
Small

Planning application dates

Date validated
10 October 2017
Consultation expiry
17 November 2017
Target decision date
5 December 2017
Decision issued
22 November 2017

Applicant and agent

Agent
Feilden + Mawson
Agent address
21-27 Lamb's Conduit Street London WC1N 3NL

Planning decision

Statutory period
56 days

Publicity

Last advertised
27 October 2017
Advertisement expiry
17 November 2017

Additional information

Comments
0
Documents
5

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

Also checked, none recorded (19)

flood storage areas, tree preservation orders, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, 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.

Planning history at this site

12 other applications at this property, newest first.

  1. 2026
    27 Aug

    Internal alterations.

    ApprovedListed building consent26/05896/LBC
  2. 2026
    2 Jun

    Internal alterations to EP2.

    ApprovedListed building consent26/03616/LBC
  3. 2026
    21 May

    Iinternal alterations. (CONFIDENTIAL)

    ApprovedListed building consent26/03368/LBC
  4. 2026
    14 Apr

    Internal Alterations.

    ApprovedCert of Law - Prposed works to LB26/02479/CLLB
  5. 2026
    29 Jan

    Internal alterations

    ApprovedListed building consent26/00537/LBC
  6. 2025
    18 Dec

    Listed building consent for internal alterations across EP2. (CONFIDENTIAL)

    ApprovedListed building consent25/09178/LBC

Source: Westminster

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

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