20 SUNNINGDALE AVENUE RUISLIP MIDDLESEX HA4 9SR

1. 21 Jun 2017

   Received by Hillingdon

2. 15 Aug 2017

   Decision issued: Permitted

3. 23 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

• 26 SUNNINGDALE AVENUE RUISLIP HA4 9SR

  74313/APP/2019/689 Submitted 26 Feb 2019 0m away

  Single storey rear extension

  Granted Full applications Extension 7 docs
  Small domestic

• 26 SUNNINGDALE AVENUE RUISLIP HA4 9SR

  74313/APP/2018/3969 Submitted 9 Nov 2018 0m away

  Single storey rear extension involving demolition of existing conservatory

  Granted Full applications Extension Demolition 7 docs
  Small domestic

• 14 SUNNINGDALE AVENUE RUISLIP MIDDLESEX HA4 9SR

  73946/APP/2018/2529 Submitted 9 Jul 2018 0m away

  Single storey side/rear extension.

  Granted Full applications Extension 7 docs
  Small domestic

• 20 SUNNINGDALE AVENUE RUISLIP MIDDLESEX HA4 9SR

  66769/APP/2017/2937 Submitted 10 Aug 2017 0m away

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

  Granted Full applications Extension 7 docs
  Small domestic

• 20 SUNNINGDALE AVENUE RUISLIP MIDDLESEX HA4 9SR

  66769/APP/2017/2270 Submitted 21 Jun 2017 0m 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 metres, and for which the height of the eaves would be 2.77 metres

  Granted Full applications Extension 5 docs
  Small domestic

• 22 SUNNINGDALE AVENUE RUISLIP HA4 9SR

  72443/APP/2016/4533 Submitted 19 Dec 2016 0m 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

• 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