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

P/2026/01991/HH - Householder Application REGISTERED: Under Assessment

Proposal

Erection of a rear roof extension with 8no solar panels above the main flat roof at roof level; erection of a rear extension at second floor level over part of the existing back addition with 6no solar panels above the roof of the back addition; erection of a single storey rear extension, to the side and rear of the existing back addition; excavation of the front and rear garden to form lightwells in connection with the creation of a new basement; erection of a single storey outbuilding in the rear garden; installation of 3no rooflights in the front roofslope; alterations to part of the roof of back addition to incorporate a flat roof and the erection of opaque glass screens around the flat roof at second floor level to the rear elevation in connection with its use as a terrace; installation of French and a Juliet balcony to replace the existing window to the rear elevation and installation of a new window opening to the side of rear back addition at first floor level. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
3 Aug 2026
✓
Validated
4 Aug 2026
Decision
Expected by 29 Sept 2026

Under consideration

No decision has been issued yet. Plota predicts a decision by 25 Oct 2026, from Hammersmith and Fulham's recent extensions.

The consultation period closed on 3 Sept 2026.

Documents 23

All documents on the council site ↗

Site constraints 6

Flood zone 3, rivers and sea
High chance: a 1 in 100 or greater annual chance from rivers, or 1 in 200 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 ↗
National infrastructure project 121 m away: Thames Tideway Tunnel
The site is 121 m from the project boundary. Waste water treatment, decided. The project page says whether consent was granted.
Nationally significant infrastructure projects (power stations, electricity lines, pipelines, major roads and railways, harbours, airports and reservoirs) are consented by a Secretary of State under the Planning Act 2008, after an examination by the Planning Inspectorate, rather than by the council. The boundary is the one the Inspectorate consults on and can change as the scheme does. Projects are shown within 2 km of the site.
Planning Inspectorate project page ↗
Also on the record
Inside the Hammersmith and Fulham built-up area; Public transport access: PTAL 3 (moderate), TfL 2023, for the 100 m square.
Not affected
Not green belt · No listed building at the site · No scheduled monument at the site

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, 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 1

Last sold for £1,390,000 in October 2024. Terraced house, freehold.

18 October 2024£1,390,000

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

Building

Floor area123 m² (1,324 sq ft)
Energy ratingD (63 out of 100), could reach B
PropertyEnd-terrace house, 5 habitable rooms
Built1900 to 1929
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

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

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Important details

Application type
Householder Application
Postcode
SW6 6JY
Received
3 Aug 2026
Validated
4 Aug 2026
Ward
Palace And Hurlingham
Case officer
Show
Applicant
Show

Decision outlook

Day 66 of the 56-day target. Hammersmith and Fulham usually decides extensions by day 72.

Day 666 days to the predicted decision (day 72)
28%decided within 8 weeks
98%approved
382decided in the last year

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

Consultation & key dates

Consultation
6 Aug 2026
Comments by
3 Sept 2026
Site or press notice
12 Aug 2026
Statutory expiry
29 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

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.