55 Thames Avenue Haydon Wick Swindon SN25 3NR

1. 26 Aug 2026

   Received by Swindon

2. 2 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 21 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Swindon took a median of 49 days over the applications it decided in the last year.

This application is with Swindon for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• 70 Thames Avenue Haydon Wick Swindon SN25 3NR

  S/HOU/25/1492 Submitted 14 Nov 2025 94m away

  Erection of garage extension (single storey front) and first floor side and rear extension

  Granted Householder Extension 7 docs
  Small domestic

• 36 Thames Avenue Haydon Wick Swindon SN25 3NP

  S/HOU/24/0546 Submitted 13 May 2024 101m away

  Erection of a single storey rear extension.

  Granted Householder Extension 6 docs
  Small domestic

• 2 Trent Road Haydon Wick Swindon SN25 3LT

  S/HOU/24/0986 Submitted 28 Aug 2024 112m away

  Erection of two storey side and two storey rear extension.

  Granted Householder Extension 6 docs
  Domestic

• 2 Windrush Road Moredon Swindon SN25 3BS

  S/HOU/21/0895 Submitted 20 May 2021 206m away

  Erection of a single storey side and rear extension.

  Refused Householder Extension 16 docs
  Small domestic

• 39 Severn Avenue Haydon Wick Swindon SN25 3LL

  S/HOU/21/1147 Submitted 1 Jul 2021 238m away

  Erection of a single storey rear extension

  Granted Householder Extension 7 docs
  Small domestic

• 86 Severn Avenue Haydon Wick Swindon SN25 3ND

  S/HOU/24/0386 Submitted 4 Apr 2024 265m away

  Erection of a single storey rear extension.

  Granted Householder Extension 9 docs
  Small domestic

• S/LDP/26/1080 Awaiting decision

  7 Morse Street Swindon SN1 5QP

  Certificate of Lawfulness (proposed) for loft conversion with rear dormers and single storey rear extension.

  1 Sep 2026 Lawful development
• S/LDP/26/1079 Awaiting decision

  93 Curtis Street Swindon SN1 5LR

  Certificate of Lawfulness (proposed) for loft conversion with rear dormers.

  1 Sep 2026 Lawful development
• S/LDP/26/1015 Granted

  24 Bradley Road Upper Stratton Swindon SN2 7QB

  Certificate of Lawfulness (Proposed) for a loft conversion with hipped to gabled roof.

  14 Aug 2026 Lawful development
• S/LDP/26/1081 Awaiting decision

  168 Beatrice Street Gorse Hill Swindon SN2 1BD

  Certificate of Lawfulness (proposed) for loft conversion with rear dormers.

  28 Aug 2026 Lawful development
• S/LDP/26/1073 Awaiting decision

  5 Bay Tree Court Pinehurst Swindon SN2 1TQ

  Certificate of Lawfulness (Proposed) for the erection of a rear dormer window.

  27 Aug 2026 Lawful development