48 Keston Road London Southwark SE15 4JB Data via plota.co.uk

26/AP/2499 - Householder Application Approved

Proposal

Construction of a single storey side infill and rear extension to form a 'L' shaped wrap around extension. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
21 Aug 2026
✓
Validated
2 Sept 2026
✓
Approved
9 Oct 2026

Approved on 9 Oct 2026 · Delegated Panel - Complex · Last checked 11 Oct 2026

Documents 16

All documents on the council site ↗

Site constraints 4

Air quality management area: Southwark 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 ↗
2 listed buildings within 150 m
Nearest: St Johns and St Clements School, Grade II, 34 m away · 2 Grade II
The site itself is not listed. Listed building consent is needed for work that affects the special interest of a listed building, inside or out, on top of planning permission. Setting can be a consideration for buildings nearby; there is no fixed radius.
Show all 2 with distances
Historic England ↗
Also on the record
Inside the Southwark built-up area; Public transport access: PTAL 4 (good), TfL 2023, for the 100 m square.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument 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.

Building

Floor area132 m² (1,421 sq ft)
Energy ratingC (73 out of 100), could reach B
PropertyMid-terrace house, 6 habitable rooms
Built1900 to 1929
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

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

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Important details

Council
Southwark
Application type
Householder Application
Postcode
SE15 4JB
Received
21 Aug 2026
Validated
2 Sept 2026
Ward
Goose Green
Parish
Dulwich
Case officer
Show
Target decision
27 Oct 2026
Decision
Householder - GRANTED
Decision date
9 Oct 2026
Decision level
Delegated Panel - Complex
Applicant
Show

How this decision compares

Decided in 37 days from validation, 14 days faster than Southwark's median of 51 for extensions. Approved, as 93% of extensions here are.

75%decided within 8 weeks
93%approved
657decided in the last year

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

Public comments

1comment received
1 objecting

4 neighbours consulted · Last counted 11 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Statutory expiry
27 Oct 2026
Env. assessment
No
Southwark
Planning Authority Score
7/10
Good
#64 of 296 councils
Relevant to this application:
Householder decisions

Southwark is faster than most councils at deciding householder applications, ranking #54 out of 296. Householder applications are slightly more likely to be approved here (95%) than the national average (90%).

Faster than most councils
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
Southwark decision statistics
Based on MHCLG data, the year to March 2026
92%
Overall approval rate
Above avg (87%) #93 of 296
95%
Householder approved
Above avg (90%) #92 of 296
78%
Decided in 8 weeks
Above avg (63%) #54 of 296
37%
Extended time limit
Below avg (41%) #122 of 296
92%
Minor dwellings approved
259 decided (1-9 homes)
86%
Major dwellings approved
14 decided (10+ homes)
82%
Change of use approved
38 decided
1,622
Total decisions
132 refused in the year to March 2026

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.