12 Longfield Street SW18 5RE

1. 13 Jan 2026

   Received by Wandsworth

2. 21 Jan 2026

   Validated

   Checked as complete and ready for consideration.

3. 2 Mar 2026

   Decision issued: Approve No Conditions

4. 10 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

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

• 12 Longfield Street SW18 5RE

  2025/4565 Submitted 17 Dec 2025 0m away

  Alterations including erection of a mansard extension (with French doors and safety rail) to the main rear roof, including raising the ridge and chimney stack by 600mm; Erection of an extension above the two-storey back addition; Erection of a single storey rear and side extension; Removal of shopfront, installation of white rendered banding detail and 2 x timber sash windows and bricking up to match existing; Installation of a replacement timber front entrance door; Removal of existing front porch.

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

• 15 Longfield Street SW18 5RD

  2026/1157 Submitted 24 Mar 2026 26m away

  Non-material amendment to planning permission dated 25/07/2025 ref 2025/1889 ( Alterations including erection of ground floor side/rear extension, first floor rear extension and extension over the existing two storey rear addition. Remodelling at roof level with rooflights to front elevation ) to allow changes to the windows.

  Granted Amendments Extension Loft or dormer +1 6 docs

• 3 Longfield Street SW18 5RD

  2021/2221 Submitted 11 May 2021 31m away

  Alterations including erection of replacement first floor rear extension with roof extension above, enlargement of door and window openings to rear single storey extension and installation of bifold doors.

  Refused Householder Extension Windows or glazing 6 docs
  Small domestic

• 28 Standen Road London SW18 5TQ

  2023/0359 Submitted 30 Jan 2023 76m away

  Alterations including erection of an extension to main rear roof (with French doors and safety railings) and extension above two storey back addition.

  Refused Householder Extension Windows or glazing 8 docs
  Domestic

• 28 Standen Road London SW18 5TQ

  2023/0360 Submitted 30 Jan 2023 76m away

  Alterations including erection of a single storey rear/side extension.

  Granted Householder Extension 7 docs
  Small domestic

• Flat First Floor 34 Standen Road SW18 5TQ

  2021/0582 Submitted 8 Feb 2021 84m away

  Alterations to the rear first floor to change a window to a Juliette balcony, alterations to the second floor to create a roof amenity area.

  Granted Full applications Windows or glazing 6 docs

• 2026/3093 Awaiting decision

  208 Franciscan Road SW17 8HG

  Lawful development for loft conversion.

  27 Aug 2026 Lawful development
• 2026/2857 Withdrawn

  11 Brookwood Road SW18 5BL

  Erection of timber framed pergola in rear garden.

  10 Aug 2026 Lawful development
• 2026/2842 Withdrawn

  18 Bowman Mews SW18 5TN

  Erection of a single-storey ground floor rear extension.

  7 Aug 2026 Lawful development
• 2026/2763 Withdrawn

  47 Honeywell Road SW11 6EQ

  Installation of solar PV equipment.

  30 Jul 2026 Lawful development
• 2026/2744 Withdrawn

  249-253 Queenstown Road SW8 3NP

  Installation of a freestanding tensile fabric canopy

  30 Jul 2026 Lawful development