4 Thornbury Avenue Southampton SO15 5BR

1. 13 Aug 2026

   Validated

   Checked as complete and ready for consideration.

2. 17 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 8 October 2026, 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 54 days over the applications it decided in the last year.

This application is with Southampton 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.

This page mirrors an entry on the statutory planning register that Southampton is required to keep. The published feed for this record does not state which type of application it is, which is common for older entries and for some council systems; the register entry on the council portal will say, alongside the case officer and any consultation dates.

Every planning application follows the same broad path: submission, validation, publicity, then a decision by officers or committee. Our guide to planning application types explains the common types and what each can approve.

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

  22/00584/ELDC Submitted 13 Apr 2022 0m 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

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

  23/00503/ELDC Submitted 19 Apr 2023 0m away

  95% historically approved · decision due ~14 Jun

  Application for a lawful development certificate for existing use as a sui generis house in multiple occupation (HMO) for 7 persons.

  Awaiting decision Lawful development 2 docs

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

  24/00937/ELDC Submitted 7 Aug 2024 42m 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

  26/00312/FUL Submitted 17 Apr 2026 42m 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 77m 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

• 134 Hill Lane Southampton SO15 5DD

  21/00959/FUL Submitted 22 Jun 2021 83m away

  Retention of outbuilding on rear of property

  Granted Full applications 10 docs