10 Langthorne Street,London,Hammersmith And Fulham,SW6 6JY Data via plota.co.uk

Proposal

Erection of a rear extension at second floor level, over part of the existing back addition, following removal of existing chimney stack; erection of a single storey rear extension, to the side and rear of the existing back addition, following demolition of existing side return extension; installation of a new openable rooflight and 7no. solar photovoltaic panels to the existing flat roof at main roof level; installation of an Air Conditioning Heat Pump unit and 3no. solar photovoltaic panels to the flat roof of the proposed rear extension at second floor level; installation of a sash window to replace 2no. existing windows to the rear elevation at first floor level. Data via plota.co.uk

View original council record ↗Last checked

Application progress

Validated
15 Jul 2026
Received
17 Jul 2026
Decision
Expected by 9 Sept 2026

This application is under consideration - no decision has been issued yet. Plota predicts a decision around 14 Sept 2026, from Hammersmith and Fulham's recent demolitions. The consultation period closed on 19 Aug 2026.

Documents 29

All documents on the council site ↗

Site constraints 4

Flood zone 2, rivers and sea
Medium chance: between a 1 in 100 and 1 in 1,000 annual chance from rivers, or 1 in 200 to 1 in 1,000 from the sea. Any development here needs a flood risk assessment. Defences are not counted.
The Environment Agency flood map for planning. Homes in zone 3 must also pass the sequential test. Surface water flooding is a separate map.
Flood map ↗
Crabtree conservation area
Also 49. Demolition needs planning permission and permitted development is restricted.
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.
Air quality management area: Hammersmith and Fulham 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
Inside the Hammersmith and Fulham built-up area.
Not affected
Not green belt · No listed building at the site · 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

Postcode
SW6 6JY
Received
17 Jul 2026
Validated
15 Jul 2026
Ward
Palace And Hurlingham
Case officer
Show
Applicant
Show
Agent
Clare Castle-Smith / Willow & Wren Studio Ltd

Decision outlook

Day 61, past the statutory target. 83% of demolitions in Hammersmith and Fulham are decided within thirteen weeks, which runs to 14 Oct 2026; extensions of time are common, and the council need not decide on the day. Last seen undecided on 12 Sept 2026.

Day 615 days past the 56-day target
42%decided within 8 weeks
94%approved
37decided in the last year

Plota live figures for demolitions decided by Hammersmith and Fulham in the last twelve months, from validation. Hammersmith and Fulham decision record →

Consultation & key dates

Consultation
17 Jul 2026
Comments by
19 Aug 2026
Site or press notice
29 Jul 2026
Statutory expiry
9 Sept 2026
Hammersmith and Fulham
Planning Authority Score
3.7/10
Below average
#210 of 296 councils
Relevant to this application:
Householder decisions

Hammersmith and Fulham is one of the slowest councils in England for householder decisions, ranking #281 out of 296. The council extends the time limit on 63% of applications - one of the highest rates in England. Expect your application to take longer than the standard deadline. Householder applications are more likely to be approved here than most councils, with a 99% approval rate vs 90% nationally.

Among the slowest councils in England
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
Hammersmith and Fulham decision statistics
Based on MHCLG data, the year to March 2026
95%
Overall approval rate
Above avg (87%) #20 of 296
99%
Householder approved
Above avg (90%) #4 of 296
33%
Decided in 8 weeks
Below avg (63%) #281 of 296
63%
Extended time limit
Above avg (41%) #275 of 296
97%
Minor dwellings approved
209 decided (1-9 homes)
100%
Major dwellings approved
1 decided (10+ homes)
92%
Change of use approved
37 decided
1,321
Total decisions
60 refused in the year to March 2026