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The Mansion House St Helens Square York YO1 9QN

25/02307/LBCApproved
Discharge / amendments

Approved on 9 January 2026

Council decision: Approve

Site boundary (council red line)

Proposal

Variation of condition 2 of permitted application 24/01876/LBC to vary works to second floor windows

Received
17 November 2025
  1. Received17 Nov
  2. Validated18 Nov
  3. Consult.
  4. Target
  5. Decided9 Jan

Decided in 52 days

About this application

This is a planning application for window replacement at The Mansion House St Helens Square York YO1 9QN. York has handled 3,707 applications of this type. This one was decided in 52 days, 4 days quicker than York's typical decision time. The site is in the Central Historic Core conservation area, with 20 listed buildings nearby. There have been 3 other applications at this address. We hold 333 applications in total for the YO1 postcode area.

Application details

Postcode
YO1 9QN

Planning application dates

Date validated
18 November 2025

Applicant and agent

Architect profile
BUTTRESS ARCHITECTS LTD

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

Not published by this council, so not checked: tree preservation orders. Ask the council if these matter.

Also checked, none recorded (19)

flood storage areas, 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.

Planning history at this site

1 other application at this property, newest first.

  1. 2025
    26 Mar

    Condition 7(a) of 24/01875/FUL

    ApprovedDischarge of conditionsAOD/25/00089

Source: York

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