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Planning application

43 MELLOW LANE EAST HAYES

Awaiting decision Hillingdon 23831/APP/2026/1866

Works: Loft or dormer Windows or glazing

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

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)

As published by the council, reference 23831/APP/2026/1866

Application record

Reference
23831/APP/2026/1866
Status
Approval
Received
28 Jul 2026

Site history

Applications at this address on the Hillingdon register

This site has had 2 applications since 2026: 1 approved, 0 refused.

  • 23831/APP/2026/508 Granted

    43 MELLOW LANE EAST HAYES

    Erection of single storey rear extension, following the demolition of an existing rear canopy

    Decided 22 Apr 2026 Full applications

Timeline

Dates from the published record

  1. 28 Jul 2026

    Received by Hillingdon

  2. 7 Aug 2026

    Added to PlanIndex

  3. 7 Aug 2026

    Status changed to Approval

    Previously Undecided.

  4. Decision

    Awaiting decision

    Decision expected by 22 September 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    Hillingdon took a median of 58 days over the applications it decided in the last year.

What happens while it is decided

This application is with Hillingdon for determination, against a statutory target of eight weeks. Over the last year Hillingdon's median decision took 58 days. More in our guide to how long planning decisions take.

About this record

The published feed does not state which type of application this is; the register entry on Hillingdon's portal will say. Our guide explains the common types.