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Planning application PAC/2025/3121

Prior Approval: Change of use from Commercial, Business and Service (Use Class E) to Dwellinghouses (Use Class C3)Awaiting decision
Prior approval
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

Prior Approval for the change of use of Saracen House from offices (Use Class E) to a residential (Use Class C3) compromising of 12 flats with associated cycle and refuse storage.

Submitted
15 October 2025
  1. Received15 Oct
  2. Validated
  3. Consult.
  4. Target
  5. Decided

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View on the council's site

About this application

This is a planning application for a change of use. Hounslow has handled 27 applications of this type. It has been with the council since 15 October 2025 and is still awaiting a decision. The site is in the Isleworth Riverside conservation area, with 5 listed buildings nearby. In the past year there have been 111 applications across Isleworth.

57% of prior approval: change of use from commercial, business and service (use class e) to dwellinghouses (use class c3) applications at London Borough of Hounslow were approved. Across all application types, the council typically decides in about 8 weeks (median).

Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street

Application details

Reference
PAC/2025/3121
Application type
Prior Approval: Change of use from Commercial, Business and Service (Use Class E) to Dwellinghouses (Use Class C3)

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: Isleworth Riverside
  • Listed building: Grade II: The Old Blue SchoolOn or next to this site · +1 more
  • Article 4 direction: Dwellinghouses (C3) to small HMOs (C4) - borough-wide Article 4 Direction
  • Brownfield land register: Saracen House, Swan StreetRegister site at or near this address · +1 more

Possibly incomplete for this council: tree preservation orders.

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.

Source: Hounslow

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

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For applicants and trades

Before the decision

You may need a flood risk assessment. Drainage & flood risk consultants near this site

The site is in flood zone 3 (Environment Agency).

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