Planning application
171 Trentham Street SW18 5DH
Works: Extension 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
Erection of a single storey rear and side extension.
As published by the council, reference 2026/1158
Application record
- Reference
- 2026/1158
- Type
- Householder
- Status
- Granted As published: FINAL DECISION
- Decision
- Granted As published: Approve with Conditions
- Received
- 24 Mar 2026
- Validated
- 7 Apr 2026
- Decided
- 18 May 2026
- Ward
- Southfields
- Decision by
- Delegated Standard
- Postcode
- SW18 5DH
Site history
Applications at this address on the Wandsworth register
This site has had 2 applications since 2026: 2 approved, 0 refused.
-
2026/1159 Granted
171 Trentham Street SW18 5DH
Erection of an extension to the main rear roof, and an extension above the two-storey back addition.
Timeline
Dates from the published record
-
24 Mar 2026
Received by Wandsworth
-
7 Apr 2026
Validated
Checked as complete and ready for consideration.
-
18 May 2026
Decision issued: Approve with Conditions
-
10 Aug 2026
Added to PlanIndex
Documents
Plans, drawings, consultee responses and the officer's report
6 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 18 May 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
-
171 Trentham Street SW18 5DH
Erection of an extension to the main rear roof, and an extension above the two-storey back addition.
Granted Lawful development Extension 6 docs -
168 Trentham Street SW18 5DJ
Prior approval for erection of single-storey rear extension to extend beyond the rear wall of the existing dwellinghouse by 4m, the total height of the proposed extension is 3.7m and the height of the eaves is 2.75m.
Granted Prior approval Extension 16 docsSmall domestic -
157 Astonville Street SW18 5AQ
Erection of single storey rear and side extension.
Granted Householder Extension 7 docsSmall domestic -
157 Astonville Street SW18 5AQ
Alterations including erection of roof extension to main rear roof and roof extension above two storey back addition.
Granted Lawful development Extension 8 docs -
Flat First Floor 153 Astonville Street SW18 5AQ
Alterations including erection of mansard roof extension to main rear roof (with French doors and safety railings) including raising the main roof ridge height by 250mm; erection of extension above part of two-storey back addition; formation of second floor rear roof terrace above part of back addition with 1.7m high screen surround.
Granted Full applications Extension Loft or dormer +2 14 docs -
74 Revelstoke Road SW18 5PB
Alterations including erection of a replacement 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.
Granted Full applications Extension Roofing +1 7 docs
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.