256, Trelawney Avenue, Slough, SL3 7UD

1. 8 Oct 2015

   Received by Slough

2. 12 Oct 2015

   Validated

   Checked as complete and ready for consideration.

3. 31 Oct 2016

   Decision issued: Withdrawn by Applicant

4. 21 Sep 2026

   Added to PlanIndex

The applicant withdrew this application before Slough decided it, and is free to submit a revised scheme at any time. More in our guide to what happens after a planning decision.

An outline application tests the principle of developing a site, holding back details such as appearance and landscaping as reserved matters for later approval. More in our guide to planning application types.

• 298, Trelawney Avenue, Slough, SL3 7UD

  P/06724/003 Submitted 23 Sep 2021 50 yards away

  Retrospective application for a single storey rear extension

  Refused Full applications Extension 3 docs
  Small domestic

• The Langley Academy Of Science, Trelawney Avenue, Langley, Berkshire, SL3 7UD

  TEL/2023/20 Submitted 31 May 2023 50 yards away

  to install electronic communications apparatus/development ancillary to radio

  Decided

• 242 Trelawney Avenue, Slough, SL3 7UD

  P/20189/000 Submitted 29 Mar 2023 50 yards away

  Removal of existing shopfront and replacement with new compliant ppc aluminium framed shopfront with automatic sliding door

  Granted Full applications Windows or glazing 4 docs

• 252, Trelawney Avenue, Slough, SL3 7UD

  P/06724/005 Submitted 14 Apr 2026 50 yards away

  78% historically approved · decision due ~10 Jun

  Construction of a single storey rear extension and bin store

  Status unknown Full applications Extension
  Small domestic

• 234, Trelawney Avenue, Slough, SL3 7UD

  P/06785/005 Submitted 22 Jun 2026 50 yards away

  Construction of a single storey rear extension

  Granted Full applications Extension
  Small domestic

• Land to the rear of Trelawney Avenue, Slough, Berkshire, SL3 7UD

  P/21088/000 Submitted 8 Jun 2026 50 yards away

  Demolition of an existing storage building to create two adjoined two storey uni

  Granted Full applications Demolition

• P/03591/004 Withdrawn

  19, Iona Crescent, Slough, SL1 6JH

  Lawful Development Certificate for a proposed loft conversion to create habitable accommodation with 2no. dormers to the side elevation.

  Received 11 Feb, published by the council 25 Jul 2026 Outline
• P/00378/034 Status unknown

  235, Farnham Road, Slough, Slough, SL2 1DE

  Outline application with all matters reserved for the demolition of the existing

  Received 9 Sep, published by the council 10 Sep 2026 Outline
• P/00431/014 Granted

  Substation, Stirling Road, Slough, SL1 4ST

  Lawful Development Certificate for a proposed erection of a switch house building to accommodate a new 132kV GIS (Gas Insulated Switchgear) switchboard and associated switch rooms.

  Received 20 May, published by the council 25 Jul 2026 Outline
• P/11987/004 Awaiting decision

  23, The Myrke, Slough, SL3 9AB

  Lawful development certificate for a proposed single storey rear outbuilding

  Received 20 Aug, published by the council 21 Sep 2026 Outline
• P/08015/003 Refused

  45, Thurston Road, Slough, SL1 3JW

  Lawful development certificate for the proposed change of use from C3 (dwelling) to C4 (HMO)

  Received 12 May, published by the council 25 Jul 2026 Outline