18 Cromwell Grove, London, W6 7RG Data via plota.co.uk
Proposal
Demolition of the existing roof and erection of a new replacement roof comprising of a side dormer roof extension involving an increase in the ridge height by 350mm together with 1no rooflight in the front roofslope and 1no rooflight above the main flat roof at roof level; erection of a rear extension at third floor level, on top of the existing back addition; replacement of the existing window with a door to the rear elevation and to the side of upper ground floor back addition; alterations to the roof of lower ground floor back addition to include the replacement of existing rooflight with a walk on flat rooflight and erection of railings around the flat roof in connection with the formation of a roof terrace; increasing the height of part of the rear garden fencing facing eastern elevation; reconfiguration of the rear garden, including the partial lowering of the raised section of the garden, together with associated hard and soft landscaping works. Data via plota.co.uk
Application progress
This application is under consideration - no decision has been issued yet. Plota predicts a decision between 27 Oct 2026 and 12 Nov 2026, from Hammersmith and Fulham's recent extensions. Comments are open until 30 Sept 2026.
Comment on this application ↗Documents 16
Statements & assessments 3
Plans & drawings 8
Application forms 2
Site constraints 4
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
- Council
- Hammersmith and Fulham
- Postcode
- W6 7RG
- Received
- 2 Sept 2026
- Validated
- 1 Sept 2026
- Ward
- Addison
- Case officer
- Show
- Applicant
- Show
- Agent
- Glen Christen / Bonnystreet (Town) Planning Limited
Decision outlook
Day 11 of the 56-day target. Hammersmith and Fulham usually decides extensions by day 65.
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
- 2 Sept 2026
- Comments by
- 30 Sept 2026
- Site or press notice
- 9 Sept 2026
- Statutory expiry
- 27 Oct 2026
Historical activity at this location
26 previous applications on record - archival context, not part of the live application.
Previous applications at this address
Nearby activity
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.
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18 Cromwell Grove, London, W6 7RG
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