2B Thornbury Avenue Southampton City Of Southampton SO15 5BR

1. 19 Apr 2023

   Received by Southampton

2. 20 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 14 June 2023, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Southampton took a median of 55 days over the applications it decided in the last year.

This application is with Southampton for determination, against a statutory target of eight weeks. Over the last year Southampton decided lawful development applications in a median of 56 days. More in our guide to how long planning decisions take.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 2A Thornbury Avenue Southampton City Of Southampton SO15 5BR

  22/00584/ELDC Submitted 13 Apr 2022 50 yards away

  Application for a lawful development certificate for existing use as a sui generis house in multiple occupation (HMO) for 8 persons.

  Granted Lawful development 5 docs

• 4 Thornbury Avenue Southampton SO15 5BR

  26/00877/ELDC Submitted 13 Aug 2026 50 yards away

  95% historically approved · decision due ~8 Oct

  Application for a lawful development certificate for the existing use as a house in multiple occupation (HMO, Class C4).

  Awaiting decision Lawful development 2 docs

• Flats 2 and 4 15 Thornbury Avenue Southampton SO15 5BQ

  24/00937/ELDC Submitted 7 Aug 2024 50 yards away

  Application for a lawful development certificate for existing conversion of maisonette into 2 flats (1x2 and 1x1 bed).

  Granted Lawful development New dwelling 5 docs
  Several homes

• 39 Thornbury Avenue Southampton SO15 5BQ

  24/00880/DIS Submitted 12 Aug 2024 50 yards away

  Application for approval of details reserved by conditions 3(Refuse) and 4(Cycle storage) of permission 21/01649/FUL for dwelling & annexe

  Granted Conditions 5 docs
  Domestic

• 39 Thornbury Avenue Southampton SO15 5BQ

  26/00312/FUL Submitted 17 Apr 2026 50 yards away

  Change of use from Residential Dwelling (Class C3) to Hotel (Class C1)

  Refused Full applications 6 docs
  Domestic

• 36 Thornbury Avenue Southampton SO15 5BR

  21/01071/FUL Submitted 14 Jul 2021 100 yards away

  Removal of condition 3 sought to remove the personal restriction of the business and variation of condition 4 sought to increase staff members on planning permission ref. 05/00382/FUL.

  Granted Full applications 7 docs

• 26/01031/PLDC Awaiting decision

  231 Winchester Road Southampton SO16 6TP

  Application for a lawful development certificate for proposed use of part of the premises for pet care and treatment facility.

  Received 8 Sep, published by the council 10 Sep 2026 Lawful development
• 26/00980/PLDC Awaiting decision

  Unit C Atlantic Works Oakley Road Southampton SO16 4LL

  Application for a lawful development certificate for proposed use as indoor sport, recreation or fitness (Class E(d)).

  Received 21 Aug, published by the council 27 Aug 2026 Lawful development
• 26/00954/ELDC Awaiting decision

  5 Windrush Road Southampton SO16 9DE

  Application for a lawful development certificate for the existing use as a house in multiple occupation (HMO, Class C4).

  Received 17 Aug, published by the council 24 Aug 2026 Lawful development
• 26/00650/PLDC Refused

  158 Millbrook Road East Southampton SO15 1JR

  Application for a lawful development certificate for proposed use as offices (use class E).

  Received 4 Jun, published by the council 25 Jul 2026 Lawful development
• 26/00626/ELDC Granted

  82 Newcombe Road Southampton SO15 2FS

  Application for a lawful development certificate for the existing use as a house in multiple occupation (HMO, Class C4).

  Received 29 May, published by the council 25 Jul 2026 Lawful development