20 SEATON GARDENS RUISLIP HA4 0AX

1. 3 Mar 2026

   Received by Hillingdon

2. 19 Mar 2026

   Validated

   Checked as complete and ready for consideration.

3. 18 May 2026

   Decision issued: Permitted

4. 12 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.

More on full applications applications in our guide

• LAND TO THE REAR OF 45 SEATON GARDENS RUISLIP HA4 0BB

  70507/APP/2021/1208 Submitted 25 Mar 2021 136m away

  Erection of a two storey dwelling with associated access, parking and amenity space

  Refused Full applications 15 docs
  Domestic

• 44 HATHERLEIGH ROAD RUISLIP MIDDLESEX HA4 6AU

  55279/APP/2021/2752 Submitted 13 Jul 2021 152m away

  Conversion of roof space to habitable use to include a rear dormer, 2 front roof lights and conversion of roof from hip to gable end with new gable end window (Application for a Certificate of Lawful Development for a Proposed Development)

  Granted Full applications Loft or dormer Windows or glazing 5 docs

• 65 CORNWALL ROAD RUISLIP HA4 6AJ

  80067/APP/2026/1162 Submitted 14 May 2026 159m away

  86% historically approved · decision due ~9 Jul

  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 with new gable end window (Application for a Certificate of Lawful Development for a Proposed Development)

  Awaiting decision Loft or dormer Windows or glazing

• 65 CORNWALL ROAD RUISLIP HA4 6AJ

  80067/APP/2026/1158 Submitted 11 May 2026 159m away

  Erection of a porch, single storey side and rear wraparound extension with patio area.

  Granted Full applications Extension 4 docs
  Small domestic

• 49B CORNWALL ROAD RUISLIP HA4 6AJ

  75042/APP/2019/3379 Submitted 14 Oct 2019 159m away

  Conversion of roofspace to habitable use to include a rear dormer, 2 front rooflights and conversion of roof from hip to gable end with a new gable end window (Application for a Certificate of Lawful Development for a Proposed Development)

  Granted Full applications Loft or dormer Windows or glazing 6 docs

• 5 NORTHDOWN CLOSE RUISLIP HA4 6JY

  77820/APP/2023/307 Submitted 1 Feb 2023 197m away

  Retrospective application for the erection of a wooden pergola structure with roof and rear timber fencing

  Withdrawn Full applications 15 docs

• 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