59 MERTON AVENUE HILLINGDON UB10 9BL

1. 23 Mar 2026

   Received by Hillingdon

2. 6 May 2026

   Decision issued: Permitted

3. 12 Aug 2026

   Added to PlanIndex

Hillingdon granted permission on 6 May 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• 73 MERTON AVENUE HILLINGDON UB10 9BL

  77860/APP/2023/404 Submitted 13 Feb 2023 0m away

  Erection of single storey outbuilding to rear and front porch extension (Application for a Certificate of Lawful Development for a Proposed Development)

  Granted Full applications Extension 7 docs
  Small domestic

• 44 WINDSOR AVENUE HILLINGDON MIDDLESEX UB10 9AU

  63415/APP/2025/2451 Submitted 22 Sep 2025 151m away

  Erection of single storey rear extension

  Granted Full applications Extension 9 docs
  Small domestic

• 69 WINDSOR AVENUE UXBRIDGE UB10 9AU

  79832/APP/2026/903 Submitted 10 Apr 2026 151m away

  Erection of a single storey rear extension (Application for a Certificate of Lawful Development for a Proposed Development)

  Granted Full applications Extension 7 docs
  Small domestic

• 27 MERTON AVENUE HILLINGDON MIDDLESEX UB10 9BN

  56978/APP/2021/2452 Submitted 19 Jun 2021 179m away

  Single storey rear extension

  Granted Full applications Extension 8 docs
  Small domestic

• 63 RICHMOND AVENUE HILLINGDON UB10 9BH

  79751/APP/2026/42 Submitted 7 Jan 2026 198m away

  Conversion of roof space to habitable use to include hip to gable extension, rear dormer, 2x front roof lights (Application for a Certificate of Lawful Development for a Proposed Development)

  Granted Full applications Extension Loft or dormer 6 docs

• 18 WINDSOR AVENUE HILLINGDON UB10 9AT

  76393/APP/2021/2631 Submitted 2 Jul 2021 225m away

  Single storey rear extension

  Granted Full applications Extension 8 docs
  Small domestic

• 80149/APP/2026/1572 Granted

  14 LADYGATE LANE RUISLIP HA4 7QU

  Erection of single storey side and rear wraparound extension, a front porch, amendments to fenestration and roof lights to the front, side and rear sloped roof, following the removal of the rear chimney and garden shed. (Description Amended)

  24 Jun 2026 Full applications
• 79879/APP/2026/1749 Granted

  21 NORTH AVENUE HAYES UB3 2JE

  Erection of part single storey, part double storey rear extension

  13 Jul 2026 Full applications
• 74889/APP/2026/1363 Granted

  32 MANOR ROAD HAYES UB3 2DG

  Erection of a first-floor rear extension.

  1 Jun 2026 Full applications
• 53073/APP/2026/1645 Granted

  50 MINET DRIVE HAYES UB3 3JW

  Erection of a part single storey, part two storey extension to the rear

  1 Jul 2026 Full applications
• 80172/APP/2026/1717 Refused

  6 SQUIRRELS TRADING ESTATE VIVEASH CLOSE HAYES UB3 4RZ

  Change of use from Class B8 to Class E retail

  8 Jul 2026 Full applications