Planning application
26 Hearnville Road SW12 8RR
Works: Extension Loft or dormer Windows or glazing
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Erection of a dormer extension to main rear roof slope with french doors and safety balustrade.
As published by the council, reference 2026/0319
Application record
- Reference
- 2026/0319
- Type
- Certificate of Lawfulness - Proposed
- Status
- FINAL DECISION
- Decision
- Approve No Conditions
- Received
- 23 Jan 2026
- Validated
- 5 Feb 2026
- Decided
- 17 Mar 2026
- Ward
- Balham
- Decision by
- Delegated Standard
- Postcode
- SW12 8RR
Site history
Applications at this address on the Wandsworth register
This site has had 2 applications since 2026: 2 approved, 0 refused.
-
2026/0312 Granted
26 Hearnville Road SW12 8RR
Alterations including erection of single-storey rear/side extension.
Timeline
Dates from the published record
-
23 Jan 2026
Received by Wandsworth
-
5 Feb 2026
Validated
Checked as complete and ready for consideration.
-
17 Mar 2026
Decision issued: Approve No Conditions
-
10 Aug 2026
Added to PlanIndex
Documents
Plans, drawings, consultee responses and the officer's report
8 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 this grant of permission means
Wandsworth granted permission on 17 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 lawful development applications
A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.
Nearby applications
Within 500 metres
-
26 Hearnville Road SW12 8RR
Alterations including erection of single-storey rear/side extension.
Granted Householder Extension 8 docsSmall domestic -
18 Tantallon Road SW12 8DG
Proposed basement incorporating front and rear lightwells
Granted Householder 11 docsDomestic -
Chestnut Grove Academy 45 Chestnut Grove SW12 8JZ
Non-material amendment to planning permission dated 28/02/2020 ref 2019/3673 (Erection of two-storey sixth form centre building adjacent to the west school boundary to facilitate increased school capacity (from 5.5 forms of entry to 7 forms of entry) together with associated reconfiguration of hard/soft landscaping.) to change the wording of condition 15 from prior commencement to prior to future installation.
Granted Amendments 5 docs -
Hornsby House Primary School Hearnville Road SW12 8RS
Alterations including erection of two-storey rear extension to the main school building.
Granted Full applications Extension 35 docs -
Chestnut Grove Academy 45 Chestnut Grove SW12 8JZ
89% historically approved · decision due ~7 Sep
Permanent retention of three-storey building for education (F.1 use).
Awaiting decision -
Flat First Floor 34 Tantallon Road SW12 8DG
Alterations including erection of mansard roof extension to main rear roof (with French doors and safety railings) including raising the ridge by 150mm ; formation of roof terrace above two-storey back addition with raised access dormer and 1.7m high screen surround.
Granted Full applications Extension Loft or dormer +1 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