21 Adelphi Crescent Hayes UB4 8LZ
Proposal
Erection of a single storey detached building to the rear for use as a residential annexe
- Received
- 20 March 2024
- Decided
- 5 June 2024
- Council
- London Borough of Hillingdon
- Ward
- CHARVILLE 2022
- ReceivedReceived20 Mar
- ValidatedValidated8 Apr
- Consult.Consultation2 May
- TargetTarget Date6 Jun
- DecidedDecided5 Jun
Decided in 58 days (council typically 56)
This is a full planning application for an outbuilding at 21 ADELPHI CRESCENT HAYES UB4 8LZ. Hillingdon has handled 4,983 applications of this type and approves 81% of them, typically deciding them in 56 days. This one was decided in 77 days, 3 weeks longer than Hillingdon's median. There have been 4 other applications at this address. In the past year there have been 110 applications across CHARVILLE 2022. We hold 1,050 applications in total for the UB4 postcode area.
Application Details
Applicant & Agent
Planning Application Dates
Planning Decision
Publicity
Appeal
Additional Information
Source: Hillingdon
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
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Associated applications
- 202628 Jan
non-material amendment to planning permission ref. 78333/APP/2024/723
ApprovedNon-material amendmentAmendment78333/APP/2026/240 - 202526 Nov
Non-material amendment to planning permission ref. 78333/APP/2024/723
ApprovedNon-material amendmentAmendment78333/APP/2025/2994 - 202420 Mar
Erection of a single storey detached building to the rear for use as a residential annexe
This applicationApprovedFull78333/APP/2024/723
Planning history at this site
2 other applications at this property, newest first.
Planning constraints
Designations at the address point. Ones next to the site may also apply.
- Article 4 direction: Residential extensions
- Flood zone 1: Low probability (rivers and sea)
Possibly incomplete for this council: tree preservation orders.
Also checked, none recorded (22)
flood storage areas, conservation areas, listed buildings, 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 2026-10-09. 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.
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