125, Thirlmere Avenue, Slough, SL1 6EB

1. 14 Sep 2026

   Received by Slough

2. 14 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 9 November 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Slough took a median of 56 days over the applications it decided in the last year.

This application is with Slough for determination, against a statutory target of eight weeks. Over the last year Slough decided full applications in a median of 59 days. More in our guide to how long planning decisions take.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• 46, Priory Road, Slough, SL1 6DR

  Y/02549/001 Submitted 16 Feb 2026 93m away

  The erection of a single storey rear extension, which would extend beyond the re

  Granted Prior approval Extension
  Small domestic

• 121, Thirlmere Avenue, Slough, SL1 6EB

  P/20144/000 Submitted 9 Feb 2023 165m away

  Replacement windows to front and rear elevation of ground floor flat

  Granted Full applications Windows or glazing 3 docs

• 33, Buttermere Avenue, Slough, SL1 6EF

  P/20961/000 Submitted 9 Dec 2025 175m away

  Construction of a single storey rear and part side extension for disabled use an

  Granted Full applications Extension
  Small domestic

• 99 Huntercombe Lane North Slough Slough SL1 6DT

  PL/25/3274/SA Submitted 29 Aug 2025 203m away

  Single storey side extension to replace existing attached garage, single storey rear extension, loft conversion into habitable accommodation incorporating side dormers, rooflights, additional front window and enlargement of existing rear window opening and additional hardstanding.

  Refused Lawful development Extension Loft or dormer +1 8 docs
  Small domestic

• 99 Huntercombe Lane North Slough Slough SL1 6DT

  PL/25/5900/SA Submitted 28 Nov 2025 205m away

  Certificate of Lawfulness for proposed single storey side extension to replace the existing garage and a dormer loft extension to the existing roof

  Granted Lawful development Extension Loft or dormer 8 docs
  Small domestic

• 10, Anslow Place, Slough, SL1 6EA

  P/21027/000 Submitted 18 Mar 2026 231m away

  Construction of a proposed installation of new extraction ducting to the side el

  Granted Full applications

• P/11818/004 Awaiting decision

  7, Langley Broom, Slough, SL3 8NB

  Construction of a front proch and balcony with balustrade to front and side with

  17 Sep 2026 Full applications
• P/21158/000 Status unknown

  10, Dumbarton Way, Slough, SL3 7UR

  Construction of a single storey rear extension, front porch with changes to fene

  17 Sep 2026 Full applications
• P/21143/000 Awaiting decision

  2, Brands Road, Slough, SL3 8QP

  Construction of a proposed single storey front extension to form porch, garage c

  17 Sep 2026 Full applications
• P/13879/002 Awaiting decision

  101, Hatton Avenue, Slough, SL2 1NF

  Construction of a proposed part single storey, part two storey rear extension to

  17 Sep 2026 Full applications
• P/01222/005 Awaiting decision

  220, Stoke Poges Lane, Slough, SL1 3LJ

  Construction of a single storey detached outbuilding to be used as a office/chil

  17 Sep 2026 Full applications