120 St Mary Street Southampton SO14 1PG

1. 9 Jul 2026

   Received by Southampton

2. 25 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 3 September 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 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 full applications in a median of 56 days. More in our guide to how long planning decisions take.

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.

• 121 St Mary Street Southampton SO14 1PG

  26/00058/FUL Submitted 20 Jan 2026 50 yards away

  Installation of additional front door.

  Granted Full applications 6 docs

• 120 St Mary Street Southampton City Of Southampton SO14 1PG

  22/01026/FUL Submitted 8 Aug 2022 50 yards away

  Conversion of existing 1st and 2nd floor 2 bedroom dwelling in to 2 dwellings (2x1 bed flats) with associated storage - and the retention of ground floor shop with bedsit above. No external changes

  Granted Full applications New dwelling 17 docs
  Several homes

• 126 St Mary Street Southampton SO14 1PG

  22/00882/DIS Submitted 15 Jun 2022 50 yards away

  Application for approval of details reserved by condition 2(Refuse & Recycling) and 3(Bicycle storage) of permission 20/01288/PAC3 for prior approval for a change of use of part of the ground floor from shop (use class A1) to residential (use class C3)

  Granted Conditions 6 docs

• 121 St Mary Street Southampton SO14 1PG

  26/00903/PA2A Submitted 3 Aug 2026 50 yards away

  Permitted Development Assessment - Prior Approval sought for an additional 1 storey to provide 1 x two bed flat

  Refused

• 126 St Mary Street Southampton SO14 1PG

  20/01288/PAC3 Submitted 22 Sep 2020 50 yards away

  Prior approval for a change of use of part of the ground floor from shop (use class A1) to residential (use class C3)

  Granted Prior approval 12 docs

• 126 St Mary Street Southampton SO14 1PG

  20/00833/PLDC Submitted 30 Jun 2020 50 yards away

  Application for a lawful development certificate for 2 x proposed first floor dwellings (1 x 1 bed and 1 x studio [Class C3]).

  Granted Lawful development 8 docs

• 26/01148/FUL Awaiting decision

  135 Bellemoor Road Southampton SO15 7QW

  Erection of a two-storey detached three-bedroom dwelling.

  Full applications
• 26/01192/FUL Awaiting decision

  35 High Road Southampton SO16 2JE

  Retrospective application for conversion of 2 flats to form 4 flats (2 x 1 bed 2 x bedsits)

  Full applications
• 26/01100/FUL Awaiting decision

  21-25 Northam Road Southampton SO14 0NZ

  Alterations and reconfiguration of site from two commercial units (Use Class E) 2x1-bedroom flats and a dwelling to provide 3x1-bedroom flats, 1 x 2-bedroom flat and one ground floor commercial unit (Use Class E), together with replacement bay window to front elevation

  Full applications
• 26/01227/FUL Awaiting decision

  37 Portswood Road Southampton SO17 2ET

  Formation of vehicular access with dropped kerb.

  Full applications
• 26/01226/FUL Awaiting decision

  15 Boldrewood Road Southampton SO16 7BW

  Erection of single storey rear extension with balcony above and roof alterations including dormer windows to facilitate loft conversion.

  Full applications