Planning application
21 Ballantine Street SW18 1AL
Works: Extension Loft or dormer 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 mansard roof extension to main rear roof including raising the ridge by 300mm and extension above part of two-storey back addition
As published by the council, reference 2026/1402
Application record
- Reference
- 2026/1402
- Type
- Householder
- Status
- Granted As published: FINAL DECISION
- Decision
- Granted As published: Approve with Conditions
- Received
- 14 Apr 2026
- Validated
- 27 Apr 2026
- Decided
- 9 Jun 2026
- Ward
- Wandsworth Town
- Decision by
- Delegated Standard
- Postcode
- SW18 1AL
Site history
Applications at this address on the Wandsworth register
This site has had 2 applications since 2023: 2 approved, 0 refused.
-
2023/0776 Granted
21 Ballantine Street SW18 1AL
Erection of mansard extension to main rear roof including raising of ridge by 300mm; and extension above part of two-storey rear addition
Timeline
Dates from the published record
-
14 Apr 2026
Received by Wandsworth
-
27 Apr 2026
Validated
Checked as complete and ready for consideration.
-
9 Jun 2026
Decision issued: Approve with Conditions
-
10 Aug 2026
Added to PlanIndex
Documents
Plans, drawings, consultee responses and the officer's report
17 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 9 June 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
-
21 Ballantine Street SW18 1AL
Erection of mansard extension to main rear roof including raising of ridge by 300mm; and extension above part of two-storey rear addition
Granted Householder Extension Loft or dormer 18 docsDomestic -
13 Ballantine Street SW18 1AL
Rear garden: Purple Plum (T1) - Reduce crown by 1m from the tips and crown thin by 15% and crown clean.
Decided Trees 3 docs -
4 Ballantine Street SW18 1AL
Alterations including erection of mansard roof extension to main rear roof (with French doors and safety railings) including raising the ridge by 300mm and extension above two-storey back addition. Rooflights to front roofslope
Granted Householder Extension Loft or dormer +1 14 docsDomestic -
34 Dalby Road SW18 1AW
T1 - Ceanothus - we would like to remove this tree as it is in decline and has been severely pruned in the past. It is not a good specimen. [This is regarded as a shrub rather than a tree: notification not required - application withdrawn.]
Withdrawn Trees 2 docs -
27 Dalby Road SW18 1AW
Erection of a dormer extension to main rear roof slope and above two-storey rear addition.
Withdrawn Lawful development Extension Loft or dormer 6 docs -
27 Dalby Road Wandsworth SW18 1AW
Alterations including erection of a mansard extension to main rear roof (with french doors with safety railings) and including raising the main roof ridge by 350mm with the addition of two rooflights to the front roof slope and extension above two storey back addition
Granted Householder Extension Loft or dormer +1 8 docsDomestic
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.