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Maclise House Marsham Street London SW1P 4JJ

26/03714/FULLRefused

Refused on 23 July 2026

Council decision: Application Refused

Site boundary (council red line)

Proposal

Retention of gas riser on rear elevations at north-western end of building.

Received
5 June 2026
  1. Received5 Jun
  2. Validated15 Jun
  3. Consult.
  4. Target
  5. Decided23 Jul

Decided in 38 days

About this application

This is a planning application at Maclise House Marsham Street London SW1P 4JJ. Westminster has handled 27,108 applications of this type. This one was decided in 38 days, 11 days quicker than Westminster's typical decision time. The site is in the Millbank conservation area, with 5 listed buildings nearby. There have been 3 other applications at this address. We hold 1,247 applications in total for the SW1P postcode area.

Application details

Postcode
SW1P 4JJ

Planning application dates

Date validated
15 June 2026

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Flood zone 3: High probability (rivers and sea)Part of the site
  • Conservation area: Millbank
  • Listed building: Grade II: Maclise House, Millbank EstateOn this site · +1 more
  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed
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.

Associated applications

  1. 2026
    15 Jun

    Retention of gas riser on rear elevations at north-western end of building.

    This applicationRefusedApplication26/03714/FULL
  2. 2026
    15 Jun

    Retention of gas riser on rear elevations at north-western end of building.

    RefusedListed building consentFiled alongside26/03715/LBC

Source: Westminster

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

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