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158, Trelawney Avenue, Slough, SL3 8RU

P/12422/001Certificate Proposed (Use/Development)Withdrawn
Outline / PiP

Withdrawn on 3 June 2026

Council decision: Withdrawn by ApplicantDelegated (officer decision)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 proposed loft conversion with rear dormer.

Received
10 April 2026
Decision level
Delegated (officer decision)
Ward
Langley Marish
  1. Received10 Apr
  2. Validated10 Apr
  3. Consult.
  4. Target5 Jun
  5. Decided3 Jun

Decided in 54 days (council typically 56)

About this application

This is an outline application for a loft conversion at 158, Trelawney Avenue, Slough, SL3 8RU. Slough has handled 1,136 applications of this type. It was withdrawn 54 days after it was submitted, before a decision was made. There has been 1 other application at this address. In the past year there have been 50 applications across Langley Marish. 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 8RU
Application type
Certificate Proposed (Use/Development)
Scale / size
Small

Planning application dates

Date validated
10 April 2026
Target decision date
5 June 2026

Planning decision

Statutory period
56 days

Publicity

First advertised
13 April 2026
Site notice start
13 April 2026

Additional information

Planning Portal ID
PP-14845547
UPRN
100080339820

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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