Planning application
30 Gassiot Road SW17 8LA
Works: Extension
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Erection of an extension above the two-storey back addition.
As published by the council, reference 2026/0599
Application record
- Reference
- 2026/0599
- Type
- Certificate of Lawfulness - Proposed
- Status
- FINAL DECISION
- Decision
- Approve No Conditions
- Received
- 12 Feb 2026
- Validated
- 26 Feb 2026
- Decided
- 15 Apr 2026
- Ward
- Tooting Bec
- Decision by
- Delegated Standard
- Postcode
- SW17 8LA
Timeline
Dates from the published record
-
12 Feb 2026
Received by Wandsworth
-
26 Feb 2026
Validated
Checked as complete and ready for consideration.
-
15 Apr 2026
Decision issued: Approve No Conditions
-
10 Aug 2026
Added to PlanIndex
Documents
Plans, drawings, consultee responses and the officer's report
7 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.
Trade members open them from here.
Open the documentsWhat a grant of permission means
The process from here
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.
About lawful development applications
How this application type works
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.
Nearby applications
Within 500 metres
-
30 Gassiot Road SW17 8LA
Non material amendment to planning permission dated 22/04/2025 ref 2024/4226 (Alterations including the erection of a single-storey rear/side extension, formation rear dormer roof extension to main rear roof slope, addition of 2No. roof lights to front roof slope and erection of extension above part of two-storey back addition with inset roof terrace. Installation of Air Source Heat Pumps to roofs of ground floor and main roof extensions.) to allow the extension of glass across majority of length of side extension roof. Reduce length of sliding doors. Remove inset terrace. Replace perforated brickwork with window. Installation of rooflight on the flat roof back addition. Removal of chimney stack on first floor.
Refused Amendments Extension Loft or dormer +1 4 docsSmall domestic -
28 Eswyn Road SW17 8TP
Alterations including erection of dormer roof extension to main rear roof. Erection of single storey rear extension.
Granted Householder Extension Loft or dormer 17 docsSmall domestic -
34 Eswyn Road SW17
Erection of single-storey rear extension to extend beyond the rear wall of the existing dwellinghouse by 4.44m, the total height of the proposed extension is 3.65m and the height of the eaves is 2.85m.
Granted Prior approval Extension 8 docsSmall domestic -
Flat Part First Floor 17 Gassiot Road SW17 8LB
Alterations including erection of mansard roof extension to main rear roof and extension above part of two-storey back addition.
Granted Full applications Extension Loft or dormer 8 docs -
29 Eswyn Road SW17 8TR
Alterations including erection of roof extension to main rear roof and extension above part of two-storey back addition.
Granted Lawful development Extension 8 docs -
37 Eswyn Road SW17 8TR
Alterations including erection of roof extension to main rear roof (with French doors and safety railings) and extension above two-storey back addition.
Granted Lawful development Extension Windows or glazing 7 docs
Other lawful development applications
In Wandsworth
-
2026/3093 Awaiting decision
208 Franciscan Road SW17 8HG
Lawful development for loft conversion.
-
2026/2857 Withdrawn
11 Brookwood Road SW18 5BL
Erection of timber framed pergola in rear garden.
-
2026/2842 Withdrawn
18 Bowman Mews SW18 5TN
Erection of a single-storey ground floor rear extension.
-
2026/2763 Withdrawn
47 Honeywell Road SW11 6EQ
Installation of solar PV equipment.
-
2026/2744 Withdrawn
249-253 Queenstown Road SW8 3NP
Installation of a freestanding tensile fabric canopy