Skip to content
PlanIndex Get alerts
Menu

Planning application

147 HERLWYN AVENUE RUISLIP

Awaiting decision Hillingdon 31120/APP/2026/723

Works: Extension Small domestic

Read from the description, not a valuation. How we read the register

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

Proposal

Removal of the original kitchen half-width outrigger, and replacement with a single storey rear extension, revision to the side access door

As published by the council, reference 31120/APP/2026/723

Application record

Reference
31120/APP/2026/723
Status
Approval
Received
20 Mar 2026
Validated
20 Mar 2026
Decided
15 May 2026

Site history

Applications at this address on the Hillingdon register

This site has had 4 applications since 2023: 2 approved, 0 refused.

  • 31120/APP/2026/720 Awaiting decision

    147 HERLWYN AVENUE RUISLIP

    Conversion of roof space to habitable use to include hip to gable extension, rear dormer, 4 x front roof lights. Erection of an outbuilding (Application for a Certificate of Lawful Development for a Proposed Development)

    Decided 14 May 2026
  • 147 HERLWYN AVENUE RUISLIP

    Erection of a single storey rear extension following the demolition of existing garage and outrigger extension with amendments to fenestration

    Decided 22 May 2023 Full applications
  • 147 HERLWYN AVENUE RUISLIP

    Conversion of roof space to habitable use to include a rear dormer, 3 front roof lights and conversion of roof from hip to gable end. Erection of outbuilding to rear garden (Application for a Certificate of Lawful Development for a Proposed Development)

    Decided 22 May 2023 Full applications

Timeline

Dates from the published record

  1. 20 Mar 2026

    Received by Hillingdon

  2. 15 May 2026

    Decision issued

  3. 7 Aug 2026

    Added to PlanIndex

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 57 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.