59 Ondine Road London Southwark SE15 4EA Data via plota.co.uk

26/AP/1034 Approved

Proposal

Certificate of lawfulness (proposed) for erection of a rear dormer extension to the rear roof slope, with the addition of 3 rooflights to the front roof slope and 3 rooflights to the pitched roof over the rear outrigger, including the removal of a chimney breast on the rear roof slope, and alterations to the fenestration to the side of a semi-detached house. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
10 Apr 2026
✓
Validated
13 Apr 2026
✓
Approved
13 May 2026

Approved on 13 May 2026 · Last checked 7 Jul 2026

Documents 17

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 ↗
Also on the record
1 listed building within 150 m; Tree preservation order 17 m away: 39 Marsden Road; Inside the Southwark built-up area.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 25 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.

Sales history 1

Last sold for £935,000 in March 2026. Semi-detached house, freehold.

18 March 2026£935,000

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

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Important details

Council
Southwark
Postcode
SE15 4EA
Received
10 Apr 2026
Validated
13 Apr 2026
Target decision
7 Jun 2026
Decision
Certificate of Lawfulness Prop- GRANTED
Decision date
13 May 2026

How this decision compares

Decided in 30 days from validation, 21 days faster than Southwark's median of 51 for extensions. Approved, as 93% of extensions here are.

75%decided within 8 weeks
93%approved
647decided in the last year

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

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

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