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391, Trelawney Avenue, Slough, SL3 7TU

P/20218/000Certificate Proposed (Use/Development)Approved
Outline / PiP

Approved on 13 July 2023

Council decision: Approved Grant CLU/D;InformativesDelegated (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

Lawful development certificate for a proposed single storey rear extension.

Received
23 May 2023
Decision level
Delegated (officer decision)
  1. Received23 May
  2. Validated23 May
  3. Consult.
  4. Target18 Jul
  5. Decided13 Jul

Decided in 51 days (council typically 56)

About this application

This is an outline application for a single storey rear extension at 391, Trelawney Avenue, Slough, SL3 7TU. Slough has handled 1,136 applications of this type. This one was decided in 51 days, 5 days quicker than Slough's typical decision time. There has been 1 other application at this address. We hold 2,642 applications in total for the SL3 postcode area.

79% of outline applications at Slough Borough Council 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

Postcode
SL3 7TU
Application type
Certificate Proposed (Use/Development)
Scale / size
Medium

Planning application dates

Date validated
23 May 2023
Target decision date
18 July 2023
Application expires
3 August 2023

Planning decision

Statutory period
72 days

Publicity

First advertised
24 May 2023
Site notice start
24 May 2023

Additional information

Planning Portal ID
PP-12182857
UPRN
AP5PG78T58C464WG30
Documents
3

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Flood zone 1: Low probability (rivers and sea)

Not published by this council, so not checked: Article 4 directions. Ask the council if these matter.

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 2026-11-03. 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: Slough

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