oc:hillingdon:23831/APP/2026/1866Planning Application oc:hillingdon:23831/APP/2026/1866
Planning application at 43 MELLOW LANE EAST HAYES, Hillingdon. View planning documents, track the decision and get email alerts on updates.
Conversion of roof space to habitable use to include a rear dormer, front roof lights, conversion of roof from hip to gable end with new gable end window (Application for a Certificate of Lawful Development for a Proposed Development)
23831/APP/2026/1866
43 MELLOW LANE EAST HAYES
This is a planning application for a dormer extension at 43 MELLOW LANE EAST HAYES. Hillingdon has handled 5,467 applications of this type and approves 80% of them, typically deciding them in 56 days. It was submitted on 28 July 2026 and is still awaiting a decision. There has been 1 other application at this address. We hold 906 applications in total for the UB4 postcode area.
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Application Details
Applicant & Agent
Planning Application Dates
Planning Decision
Publicity
Appeal
Additional Information
Source: Hillingdon