Flat C First And Second Floors 40 Cathnor Road London W12 9JA Data via plota.co.uk

2025/03278/FUL - Full Planning Application Approved
Extensions & alterations

Proposal

Erection of a rear roof extension involving an increase in the ridge height; installation of 2no rooflights in the front roofslope. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
23 Nov 2025
✓
Validated
24 Feb 2026
✓
Approved
18 May 2026

Approved on 18 May 2026 · Last checked 21 Sept 2026

Documents 21

Decision & officer reports 2

PDF DELEGATED_REPORT_OFFICER_ONLY Officer report · 18 May 2026 View ↗ PDF DECISION_NOTICE Planning Permission Decision Notice · 18 May 2026 View ↗

Plans & drawings 17

PDF DWG 1 Drawing · 21 Feb 2026 View ↗ PDF DWG 2 Drawing · 21 Feb 2026 View ↗ PDF DWG 3 Drawing · 21 Feb 2026 View ↗ PDF DWG 4 Drawing · 21 Feb 2026 View ↗ PDF DWG 5 Drawing · 21 Feb 2026 View ↗ PDF DWG 6 Drawing · 21 Feb 2026 View ↗ PDF DWG 7 Drawing · 21 Feb 2026 View ↗ PDF LOCATIONPLAN Drawing · 23 Nov 2025 View ↗ PDF SITELOCATION Drawing · 23 Nov 2025 View ↗ PDF LAYOUT PLAN - PROPOSED_INCLUDED_IN_LAYOUT PLAN - EXISTING Drawing · 23 Nov 2025 View ↗ PDF LAYOUT PLAN - PROPOSED_INCLUDED_IN_LAYOUT PLAN - EXISTING_33436422 Drawing · 23 Nov 2025 View ↗ PDF LAYOUT PLAN - PROPOSED_INCLUDED_IN_LAYOUT PLAN - EXISTING_33436425 Drawing · 23 Nov 2025 View ↗ PDF LAYOUT PLAN - PROPOSED_INCLUDED_IN_LAYOUT PLAN - EXISTING_33436428 Drawing · 23 Nov 2025 View ↗ PDF LAYOUT PLAN - PROPOSED_INCLUDED_IN_LAYOUT PLAN - EXISTING_33436430 Drawing · 23 Nov 2025 View ↗ PDF FORM_1_CIL_ADDITIONAL_INFORMATION Drawing · 23 Nov 2025 View ↗ PDF FORM_9_EXTENSION_EXEMPTION_CLAIM Drawing · 23 Nov 2025 View ↗ PDF TQRQM25327154708985 Drawing · 23 Nov 2025 View ↗

Application forms 1

PDF APPLICATIONFORMREDACTED Application Form Redacted · 23 Nov 2025 View ↗

Other documents 1

PDF ACK_VALID_APPLICATION Acknowledgement letter · 4 Mar 2026 View ↗

All documents on the council site ↗

Site constraints 8

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 ↗
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 363 m away: Thames Tideway Tunnel
The site is 363 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 ↗
Conservation area 18 m away: Coningham and Lime Grove
The edge of the area; work outside it can still affect its setting.
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.
Also on the record
1 listed building within 150 m; Inside the Hammersmith and Fulham built-up area; Public transport access: PTAL 4 (good), TfL 2023, for the 100 m square; Designated open space 37 m away.
Not affected
Not green belt · No scheduled monument at the site

Checked on 2 November 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 area99 m² (1,066 sq ft)
Energy ratingD (65 out of 100), could reach B
PropertyMid-terrace flat, 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 September 2023, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council
Hammersmith and Fulham
Application type
Full Planning Application
Postcode
W12 9JA
Received
23 Nov 2025
Validated
24 Feb 2026
Ward
Coningham
Case officer
Show
Decision
Application Approved
Decision date
18 May 2026
Applicant
Show

How this decision compares

Decided in 83 days from validation, 7 days slower than Hammersmith and Fulham's median of 76 for extensions. Approved, as 98% of extensions here are.

24%decided within 8 weeks
98%approved
508decided 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 →

Public comments

No public comments yet.

Read the comments on the council site ↗

Consultation & key dates

Consultation
4 Mar 2026
Comments by
1 Apr 2026
Statutory expiry
21 Apr 2026

Historical activity at this location

25 nearby applications on record - archival context, not part of the live application.

Within ~100m

Nearby activity

2025 Approved
44 Coningham Road, London, W12 8BJ
Installation of new double glazed timber sash windows to replace existing, to the front e…
2025/01128/FUL
2025 Approved
21 Cathnor Road, London, W12 9JD
Pruning of 2no. Prunus (Cherry) trees (T1 & T2) in the front garden, subject to Tree Pres…
2025/02192/TPO
2025 Approved
50 Cathnor Road, London, W12 9JA
Replacement of all existing timber windows to the front elevation with new double-glazed…
2025/02120/FUL
2025 Approved
47 Coningham Road, London, W12 8BS
Replacement of all existing single glazed timber framed windows to the front elevation wi…
2025/00089/FUL
2025 Approved
53 Coningham Road, London, W12 8BS
Replacement of all existing single glazed timber framed windows and existing double glaze…
2025/00091/FUL
2025 Approved
68 Coningham Road, London, W12 8BH
Replacement of all existing single glazed timber framed windows to the front elevation wi…
2025/00666/FUL
2025 Approved
48 Coningham Road, London, W12 8BJ
Replacement of all existing single glazed timber framed windows to the front elevation wi…
2025/00090/FUL
2025 Approved
Flat A, 30 Stowe Road, London, W12 8BW
Pruning of a sycamore tree in the rear garden, subject to Tree Preservation Order TPO/31/…
2025/00519/TPO
2024 Approved
61 Coningham Road, London, W12 8BS
Replacement of all existing single glazed timber sash windows with new double glazed timb…
2024/01290/FUL
2025 Approved
55 Coningham Road, London, W12 8BS
Replacement all existing single glazed timber framed windows with new double glazed (slim…
2025/00094/FUL
2025 Approved
59 Coningham Road, London, W12 8BS
Replacement all existing single glazed timber framed windows with new double glazed (slim…
2025/00092/FUL
2025
75 Coningham Road, London, W12 8BS
(T1 - T2) - 2x Sycamore (Acer pseudoplatanus) - front garden - heavily pollarded - 15cm r…
2025/00462/TREE
2024 Approved
37 Coningham Road, London, W12 8BP
Replacement of all existing single glazed timber framed windows to the front elevation wi…
2024/02294/FUL
2024 Approved
32 Coningham Road, London, W12 8BJ
Replacement of existing single glazed timber framed windows with new double glazed timber…
2024/01696/FUL
2024 Approved
34 Coningham Road, London, W12 8BJ
Replacement of existing single glazed timber framed windows with new double glazed timber…
2024/01695/FUL
2024 Approved
17 Coningham Road, London, W12 8BP
Replacement of existing single glazed timber framed windows with new double glazed timber…
2024/01698/FUL
2025
77 Coningham Road, London, W12 8BS
Replacement of all existing single glazed timber framed windows to the front elevation wi…
2025/00093/FUL
2024 Approved
21 Coningham Road, London, W12 8BP
Replacement of all existing single glazed timber framed windows to the front elevation wi…
2024/01462/FUL
2024 Approved
25 Coningham Road, London, W12 8BP
Replacement of all existing single glazed timber framed windows to the front elevation wi…
2024/01452/FUL
2024 Approved
39 Coningham Road, London, W12 8BP
Replacement of all existing single glazed timber framed windows to the front elevation wi…
2024/01461/FUL
2016 Approved
70 Coningham Road London W12 8BH
Erection of a single storey rear extension to the side of the existing back addition at l…
2016/01134/FUL
2016 Withdrawn
Maisonette A 76 Cathnor Road London W12 9JA
Erection of a single storey rear extension, to the side of the existing back addition at…
2016/00316/FUL
2016 Approved
Maisonette A 76 Cathnor Road London W12 9JA
Erection of a rear lower ground floor extension, erection of rear addition extension and…
2016/00198/FUL
2016 Approved
Maisonette A 47 Cathnor Road London W12 9JB
Erection of a single storey rear extension, to the side of the existing back addition fol…
2016/00088/FUL
2016 Approved
78 Coningham Road London W12 8BH
Rear garden. T1) Sycamore, reduce crown by 35% (3m); shape to balance.
2016/00403/TREE
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
Source: MHCLG planning statistics · See full council rankings

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.