5 Blackett Street SW15 1QG

1. 20 Oct 2025

   Received by Wandsworth

2. 22 Oct 2025

   Validated

   Checked as complete and ready for consideration.

3. 25 Feb 2026

   Decision issued: Approve with Conditions

4. 10 Aug 2026

   Added to PlanIndex

Wandsworth granted permission on 25 February 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• 22 A Hotham Road SW15 1QB

  2019/4474 Submitted 16 Oct 2019 50 yards away

  Erection of a roof extension to main rear roof and above part of rear two-storey addition.

  Granted Full applications Extension 9 docs

• 15 Blackett Street SW15 1QG

  2026/0322 Submitted 23 Jan 2026 50 yards away

  Erection of a dormer extension to main rear roof slope and extension above two-storey rear addition.

  Granted Lawful development Extension Loft or dormer 9 docs

• 15 Blackett Street SW15 1QG

  2026/0321 Submitted 23 Jan 2026 50 yards away

  Alterations including the erection of a single-storey ground floor rear/side extension and a full width mansard roof extension to the main rear roof slope with French doors and safety balustrade

  Granted Householder Extension Loft or dormer +1 10 docs
  Small domestic

• 12 Hotham Road SW15 1QB

  2026/1235 Submitted 30 Mar 2026 50 yards away

  87% historically approved · decision due ~25 May

  LOCATION: 12 Hotham Road, SW15 1QB PROPOSAL: Front Garden: T1 Lime - Crown reduce by up to 1.5m.

  Awaiting decision Trees

• 7 Hotham Road SW15 1QL

  2024/3981 Submitted 15 Nov 2024 50 yards away

  Removal of existing rear dormer roof extension and replacement with mansard roof extension with dormers including with french doors and safety railing.

  Granted Householder Extension Loft or dormer +1 10 docs
  Domestic

• 11 A Borneo Street SW15 1QQ

  2026/0984 Submitted 11 Mar 2026 50 yards away

  Alterations including mansard extension to main rear roof slope with French doors and safety railing, raising the ridge by 150mm and extension above rear addition forming a roof terrace with 1.7m obscure glazed balustrade.

  Granted Full applications Extension Loft or dormer +1 7 docs

• 2025/3832 Refused

  9 Frensham Drive SW15 3EB

  Alterations including erection of mansard roof extension to main rear roof including raising the ridge by 200mm and erection of single-storey rear extension. Formation of roof terrace at first floor level with 1.7m high screen surround.

  Received 24 Oct, published by the council 29 Jul 2026 Householder
• 2026/3241 Withdrawn

  2 Brightwell Crescent SW17 9AE

  Removal of existing fence andf stub trunks of trees and the erection of a new fence with new landscaping.

  Received 10 Sep, published by the council 21 Sep 2026 Householder
• 2026/0948 Granted

  40 Wakehurst Road SW11 6BY

  Excavation to create an enlarge basement including formation of front and rear lightwells with grille over front lightwell.

  Received 10 Mar, published by the council 29 Jul 2026 Householder
• 2026/0923 Granted

  42 A Bickersteth Road SW17 9SQ

  Alterations including erection of mansard roof extension to main rear roof (with French doors and safety railings) and extension above part of two-storey back addition; Formation of roof terrace above two-storey back addition with 1.7m high screen surround. Installation of an external spiral staircase from first floor level to ground floor level.

  Received 9 Mar, published by the council 29 Jul 2026 Householder
• 2026/3222 Withdrawn

  21 Gaskarth Road SW12 9NN

  Erection of an extension to the main rear roof to provide access to a proposed roof terrace with a 1.7m high screen surround above part of the three-storey back addition.

  Received 9 Sep, published by the council 10 Sep 2026 Householder