3 Southdean Gardens SW19 6NT Data via plota.co.uk

2026/1569 - Householder REGISTERED

Proposal

Alterations including erection of single storey rear extension, and two storey side extension to rear half of the building, including infilling of the stepped flank wall and new windows; erection of rear mansard roof extension to main roof with dormer windows and French doors and safety railings; replacement of the existing flat roof over the front ground floor bay and porch with a pitched roof. [RECONSULTATION - AMENDED DESCRIPTION AND DRAWINGS] Data via plota.co.uk

View original council record ↗Last checked

Application progress

Received
24 Apr 2026
Validated
13 May 2026
Decision
Expected by 8 Jul 2026

This application is under consideration - no decision has been issued yet. Plota predicted a decision soon after comments close on 13 Aug 2026; it is now day 124. The consultation period closed on 13 Aug 2026.

Site constraints 3

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 ↗
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Also on the record
Inside the Wandsworth built-up area.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 11 September 2026. Historic England, the Environment Agency, Natural England 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.

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Important details

Council
Wandsworth
Application type
Householder
Postcode
SW19 6NT
Received
24 Apr 2026
Validated
13 May 2026
Ward
West Hill
Case officer
Show
Applicant
Show
Agent
MOMO & CO. Design Ltd.

Decision outlook

Day 124, past the statutory target. 95% of extensions in Wandsworth are decided within thirteen weeks; extensions of time are common, and the council need not decide on the day. Last seen undecided on 31 Jul 2026.

Day 12468 days past the 56-day target
82%decided within 8 weeks
89%approved
800decided 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

Comments by
13 Aug 2026
Statutory expiry
22 Jun 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