2A COLBROOK AVENUE HAYES UB3 1TG

1. 6 Feb 2026

   Received by Hillingdon

2. 7 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 3 April 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.

This application is with Hillingdon for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

This page mirrors an entry on the statutory planning register that Hillingdon is required to keep. The published feed for this record does not state which type of application it is, which is common for older entries and for some council systems; the register entry on the council portal will say, alongside the case officer and any consultation dates.

Every planning application follows the same broad path: submission, validation, publicity, then a decision by officers or committee. Our guide to planning application types explains the common types and what each can approve.

• 54 WALTHAM AVENUE HAYES UB3 1TB

  69504/APP/2021/1599 Submitted 22 Apr 2021 125m away

  Use as 2 self-contained flats ( 1 x 2 bedroom and 1 x 1 bedroom) (Application for a Certificate of Lawful Development for an Existing Development)

  Granted Full applications New dwelling 6 docs

• 56 COLBROOK AVENUE HAYES UB3 1TQ

  17025/APP/2026/1772 Submitted 16 Jul 2026 131m away

  86% historically approved · decision due ~10 Sep

  Erection of a single storey rear extension for use as a conservatory.

  Decided Extension
  Small domestic

• 69 COLBROOK AVENUE HAYES UB3 1TQ

  74944/APP/2019/3577 Submitted 31 Oct 2019 131m away

  Single storey rear extension

  Granted Full applications Extension 9 docs
  Small domestic

• Flat 1 99 DAWLEY ROAD HAYES UB3 1LX

  79842/TRE/2025/336 Submitted 23 Dec 2025 136m away

  86% historically approved · decision due ~17 Feb

  TPO 358 T8 & T10 2x Lime crown lift removing 3m.

  Awaiting decision Trees

• 100 DAWLEY ROAD HAYES UB3 1NE

  39285/APP/2017/2325 Submitted 26 Jun 2017 186m away

  Erection of a single storey rear extension, which would extend beyond the rear wall of the original house by 4 metres, for which the maximum height would be 3.7 metres, and for which the height of the eaves would be 3 metres

  Granted Full applications Extension 4 docs
  Small domestic

• 8 WINDSOR GARDENS HAYES UB3 1QY

  76558/APP/2021/2423 Submitted 16 Jun 2021 244m away

  Detached outbuilding to rear for use as storage/gym/play room following demolition of existing garage/store (Application for Certificate of Lawful Development for a Proposed Development)

  Granted Full applications Demolition 6 docs