158, Trelawney Avenue, Slough, SL3 8RU

This site has had 2 applications since 2026: 1 approved, 0 refused.

• P/12422/001 Withdrawn

  158, Trelawney Avenue, Slough, SL3 8RU

  Lawful development certificate for proposed loft conversion with rear dormer.

  Decided 3 Jun 2026

1. 10 Jun 2026

   Received by Slough

2. 25 Jul 2026

   Added to PlanIndex

3. 26 Aug 2026

   Decision issued: Approved with Conditions; Informatives

Slough granted permission on 26 August 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

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.

• 158, Trelawney Avenue, Slough, SL3 8RU

  P/12422/001 Submitted 10 Apr 2026 50 yards away

  Lawful development certificate for proposed loft conversion with rear dormer.

  Withdrawn Loft or dormer

• 136, Trelawney Avenue, Slough, SL3 8RU

  P/21162/000 Submitted 23 Sep 2026 50 yards away

  78% historically approved · decision due ~18 Nov

  Lawful Development Certificate for a proposed single storey front extension, sin

  Status unknown Extension
  Small domestic

• 43, Ryvers Road, Slough, SL3 8RZ

  Y/20922/001 Submitted 27 Nov 2025 50 yards away

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

  Granted Prior approval Extension
  Small domestic

• 43, Ryvers Road, Slough, SL3 8RZ

  Y/20922/000 Submitted 6 Oct 2025 50 yards away

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

  Refused Prior approval Extension
  Small domestic

• 11 & 13, Ryvers Road, Langley, SL3 8RZ

  P/20755/000 Submitted 20 Jan 2025 50 yards away

  Construction of a first floor rear extensions

  Granted Full applications Extension 4 docs

• 11, Ryvers Road, Slough, SL3 8RZ

  P/20545/001 Submitted 4 Jun 2024 50 yards away

  Lawful development certificate for a proposed loft conversion with rear dormer and 3no front roof lights

  Granted Outline Loft or dormer 3 docs

• P/21185/000 Awaiting decision

  4, Hunstanton Close, Colnbrook, Slough, SL3 0RL

  Conversion of garage into habitable room

  Received 9 Oct, published by the council 12 Oct 2026 Full applications
• P/16962/002 Awaiting decision

  1, Odencroft Road, Slough, SL2 2BS

  Construction of a part single storey, part two storey side and rear extension to existing dwelling.

  Received 9 Oct, published by the council 12 Oct 2026 Full applications
• P/20300/007 Awaiting decision

  28, Gilliat Road, Slough, SL1 3QX

  Installation of air conditioning unit to the external rear wall.

  Received 8 Oct, published by the council 12 Oct 2026 Full applications
• P/21181/000 Awaiting decision

  96, Grasmere Avenue, Slough, SL2 5JF

  Construction of a single storey front & rear and two storey side extension

  Received 7 Oct, published by the council 12 Oct 2026 Full applications
• P/08479/003 Awaiting decision

  11, Ives Road, Slough, Slough, SL3 8PB

  Retrospective application for the retention of a single storey rear extension built to an increase height.

  Received 7 Oct, published by the council 12 Oct 2026 Full applications