77 Erconwald Street,London,Hammersmith And Fulham,W12 0BT Data via plota.co.uk

P/2026/01399/HH - Householder Application Approved

Proposal

Replacement of all existing timber windows with new uPVC double-glazed windows; . removal of existing window to the rear elevation at ground floor level and replacement with new patio doors; removal of existing patio door and adjoining window to the rear elevation at ground floor level and replacement with a single new window; works to include infill brickwork to match the existing external brickwork as closely as possible in colour, texture and bond. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
29 May 2026
✓
Validated
27 Jul 2026
✓
Approved
26 Oct 2026

Approved on 26 Oct 2026 · Last checked 27 Oct 2026

Documents 37

Plans & drawings 23

PDF LocationPlan.pdf Drawing · 25 Jul 2026 View ↗ PDF existing rear elevation .pdf Existing Drawings · 25 Jul 2026 View ↗ PDF proposed rear elevation.pdf Proposed Drawings · 25 Jul 2026 View ↗ PDF Existing ground floor plan.png Existing Drawings · 25 Jul 2026 View ↗ PDF Proposed ground floor plan.png Proposed Drawings · 25 Jul 2026 View ↗ PDF Site boundary.png Drawing · 25 Jul 2026 View ↗ PDF SiteBlock Plan - Existing_included_in_Block plan of the site.pdf Existing Drawings · 25 Jul 2026 View ↗ PDF 01 - Front Elevation - Ground Floor Bay Window.jpeg Existing Drawings · 25 Jul 2026 View ↗ PDF 02 - Front Elevation - First Floor Left Bedroom Window.jpeg Existing Drawings · 25 Jul 2026 View ↗ PDF 03 - Front Elevation - First Floor Right Bedroom Window.jpeg Existing Drawings · 25 Jul 2026 View ↗ PDF 04 - Rear Elevation - Ground Floor Living Room Window.jpeg Existing Drawings · 25 Jul 2026 View ↗ PDF 05 - Rear Elevation - Ground Floor Kitchen Window and Patio Door.jpeg Existing Drawings · 25 Jul 2026 View ↗ PDF 06 - Rear Elevation - First Floor Bedroom Window.jpeg Existing Drawings · 25 Jul 2026 View ↗ PDF 07 - Rear Elevation - First Floor Bathroom Window.jpeg Existing Drawings · 25 Jul 2026 View ↗ PDF 08 - Front Elevation - Whole House.jpeg Existing Drawings · 25 Jul 2026 View ↗ PDF 09 - Rear Elevation - Whole House.jpg Existing Drawings · 25 Jul 2026 View ↗ PDF LocationPlan.pdf Drawing · 29 May 2026 View ↗ PDF existing rear elevation .pdf Existing Drawings · 29 May 2026 View ↗ PDF proposed rear elevation.pdf Proposed Drawings · 29 May 2026 View ↗ PDF Existing ground floor plan.png Existing Drawings · 29 May 2026 View ↗ PDF Proposed ground floor plan.png Proposed Drawings · 29 May 2026 View ↗ PDF Site boundary.png Drawing · 29 May 2026 View ↗ PDF SiteBlock Plan - Existing_included_in_Block plan of the site.pdf Existing Drawings · 29 May 2026 View ↗

All documents on the council site ↗

Site constraints 7

Old Oak & Wormholt conservation area
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 ↗
Local nature reserve 242 m away: Wormwood Scrubs
Work nearby can need a habitats assessment.
Harm to a protected site is only accepted where there is no alternative and an overriding public interest.
Also on the record
National infrastructure project 1200 m away: Thames Tideway Tunnel; Inside the Hammersmith and Fulham built-up area; Public transport access: PTAL 5 (very good), TfL 2023, for the 100 m square; Designated open space 49 m away.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building 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.

Building

Floor area75 m² (807 sq ft)
Energy ratingD (64 out of 100), could reach B
PropertyMid-terrace house, 4 habitable rooms
Built1900 to 1929
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in October 2024, 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
W12 0BT
Received
29 May 2026
Validated
27 Jul 2026
Ward
College Park And Old Oak
Case officer
Show
Decision
APPLICATION APPROVED
Decision date
26 Oct 2026
Applicant
Show

How this decision compares

Decided in 91 days from validation, 16 days slower than Hammersmith and Fulham's median of 75 for extensions. Approved, as 98% of extensions here are.

25%decided within 8 weeks
98%approved
385decided 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
11 Aug 2026
Comments by
9 Sept 2026
Site or press notice
19 Aug 2026
Statutory expiry
21 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

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.