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1, Mallard Drive, Slough, SL1 5BW

Y/01067/002Permitted Development with ConsultationRefused
Outline / PiP

Refused on 19 February 2026

Council decision: Prior Approval; RefusedDelegated (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

The erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 5.00m, with a maximum height of 3.00m, and an eaves height of 2.75m

Received
8 January 2026
Decision level
Delegated (officer decision)
Ward
Cippenham Green
  1. Received8 Jan
  2. Validated9 Jan
  3. Consult.
  4. Target20 Feb
  5. Decided19 Feb

Decided in 41 days (council typically 56)

About this application

This is an outline application for a single storey rear extension at 1, Mallard Drive, Slough, SL1 5BW. Slough has handled 1,136 applications of this type. This one was decided in 42 days, 2 weeks quicker than Slough's typical decision time. There has been 1 other application at this address. In the past year there have been 52 applications across Cippenham Green. We hold 1,885 applications in total for the SL1 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.See what's approved near your address

Application details

Postcode
SL1 5BW
Application type
Permitted Development with Consultation
Scale / size
Small
District
West

Planning application dates

Date validated
9 January 2026
Target decision date
20 February 2026
Application expires
3 February 2026

Planning decision

Statutory period
42 days

Publicity

First advertised
12 January 2026
Site notice start
12 January 2026

Additional information

UPRN
AP3RG4845H047WWGWD

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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