58 Dagnan Road SW12 9LQ Data via plota.co.uk

2026/2052 - Application for Full Permission Approved

Proposal

Alterations including erection of mansard extension to main roof with extension above part of two-storey rear addition and formation of roof terrace with 1.7m obscure glazed surround. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
2 Jun 2026
✓
Validated
23 Jun 2026
✓
Approved
5 Aug 2026

Approved on 5 Aug 2026 · Delegated Standard · Last checked 2 Oct 2026

Site constraints 6

Heliport CAA Height Restrictions
Archaeological priority area
An assessment or field evaluation may be asked for before ground works.
The council or Historic England considers archaeology likely here. A desk-based assessment, and sometimes trial trenching, can be asked for with the application.
Air quality management area: Wandsworth AQMA
The council has declared the area as failing an air quality objective.
Schemes that add traffic, parking or combustion plant are assessed against the area's action plan and may need an air quality assessment.
Council record ↗
Conservation area 7 m away: Dinsmore Road
The edge of the area; work outside it can still affect its setting.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
Council document ↗
Heliport CAA Height RestrictionsCouncil record
Recorded by the council for this site.
Council site ↗
Also on the record
Inside the Wandsworth built-up area; Public transport access: PTAL 3 (moderate), TfL 2023, for the 100 m square.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building at the site

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.

Sales history 5

Last sold for £740,000 in April 2024. Terraced house, leasehold.

More than one property is recorded at this address: HM Land Registry does not always give the flat or unit.

30 April 2024£740,000
1 October 2010£395,000Flat or maisonette
20 June 2006£334,000Flat or maisonette
7 June 2002£250,000Flat or maisonette
16 November 1998£144,000Flat or maisonette

Sale prices from HM Land Registry's price paid record, matched to this application by its address.

Building

Floor area79 m² (850 sq ft)
Energy ratingC (70 out of 100)
PropertyMid-terrace flat, 4 habitable rooms
Built1900 to 1929
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in December 2023, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council
Wandsworth
Application type
Application for Full Permission
Postcode
SW12 9LQ
Received
2 Jun 2026
Validated
23 Jun 2026
Ward
Balham
Case officer
Show
Target decision
31 Jul 2026
Decision
Approve with Conditions
Decision date
5 Aug 2026
Decision level
Delegated Standard
Applicant
Show
Agent
Studio 136 Architects Ltd

How this decision compares

Decided in 43 days from validation, 5 days faster than Wandsworth's median of 48 for extensions. Approved, as 88% of extensions here are.

79%decided within 8 weeks
88%approved
1,194decided in the last year

Plota live figures for extensions decided by Wandsworth in the last twelve months, from validation. Wandsworth decision record →

Consultation & key dates

Alt. reference
14975516
Comments by
14 Jul 2026
Statutory expiry
14 Jul 2026
Wandsworth
Planning Authority Score
4.8/10
Below average
#164 of 296 councils
Relevant to this application:
Householder decisions

Wandsworth ranks #172 out of 296 councils for householder decision speed. Householder applications are slightly more likely to be approved here (92%) than the national average (90%).

These figures are council-wide context, not a prediction for this application. View full council performance
Wandsworth decision statistics
Based on MHCLG data, the year to March 2026
90%
Overall approval rate
Above avg (87%) #120 of 296
92%
Householder approved
Above avg (90%) #168 of 296
62%
Decided in 8 weeks
Below avg (63%) #172 of 296
37%
Extended time limit
Below avg (41%) #124 of 296
89%
Minor dwellings approved
680 decided (1-9 homes)
81%
Major dwellings approved
16 decided (10+ homes)
72%
Change of use approved
36 decided
2,062
Total decisions
206 refused in the year to March 2026

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.