Planning application
12 Longfield Street SW18 5RE
Works: Extension Loft or dormer Windows or glazing Small domestic
Read from the description, not a valuation. How we read the register
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
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.
As published by the council, reference 2025/4565
Application record
- Reference
- 2025/4565
- Type
- Householder
- Status
- Granted As published: FINAL DECISION
- Decision
- Granted As published: Approve with Conditions
- Received
- 17 Dec 2025
- Validated
- 6 Jan 2026
- Decided
- 4 Mar 2026
- Ward
- Southfields
- Decision by
- Delegated Standard
- Postcode
- SW18 5RE
Site history
Applications at this address on the Wandsworth register
This site has had 2 applications since 2025: 2 approved, 0 refused.
-
2026/0154 Granted
12 Longfield Street SW18 5RE
Erection of rear roof extension to part of main rear roof and above two-storey back addition.
Timeline
Dates from the published record
-
17 Dec 2025
Received by Wandsworth
-
6 Jan 2026
Validated
Checked as complete and ready for consideration.
-
4 Mar 2026
Decision issued: Approve with Conditions
-
10 Aug 2026
Added to PlanIndex
Documents
Plans, drawings, consultee responses and the officer's report
10 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Watch members (£5 a month) open the document list from here.
Open the documentsWhat this grant of permission means
Wandsworth granted permission on 4 March 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.
About householder applications
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.
Nearby applications
Within 0.3 miles
-
12 Longfield Street SW18 5RE
Erection of rear roof extension to part of main rear roof and above two-storey back addition.
Granted Lawful development Extension 11 docs -
15 Longfield Street SW18 5RD
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
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 docsSmall domestic -
266-268 Gardeners Arms Merton Road SW18 5JL
Change of use of first and second floors from sui generis to residential (Class C3) to provide 5 x 1-bedroom flats.
Granted Full applications New dwelling 15 docs -
28 Standen Road London SW18 5TQ
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 docsDomestic -
28 Standen Road London SW18 5TQ
Alterations including erection of a single storey rear/side extension.
Granted Householder Extension 7 docsSmall domestic
Other householder applications
In Wandsworth
-
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.
-
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.
-
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.
-
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.
-
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.