15 Ghyll Crescent Horsham West Sussex RH13 6BG

1. 21 Oct 2025

   Received by Horsham

2. 4 Nov 2025

   Validated

   Checked as complete and ready for consideration.

3. 5 Jan 2026

   Decision issued: Application 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.

Tree applications cover work to protected trees: those under a tree preservation order need consent for pruning or felling, and trees in a conservation area need six weeks written notice before work starts. The council assesses the amenity value of the tree and can refuse consent, approve it with conditions, or in conservation areas make a preservation order in response.

More on trees applications in our guide

• 16 Ghyll Crescent Horsham West Sussex RH13 6BG

  DC/26/0962 Submitted 15 Jun 2026 21m away

  98% historically approved · decision due ~10 Aug

  Erection of a first floor side extension over the existing garage, and alterations to fenestration.

  Awaiting decision Householder Extension Windows or glazing 10 docs
  Domestic

• 17 Ghyll Crescent Horsham West Sussex RH13 6BG

  DC/26/0081 Submitted 19 Jan 2026 43m away

  Surgery to 1 x Maple

  Granted Trees 4 docs

• 175 St Leonards Road Horsham West Sussex RH13 6BD

  DC/26/1306 Submitted 3 Aug 2026 139m away

  98% historically approved · decision due ~28 Sep

  Erection of a single storey rear extension and associated alterations.

  Awaiting decision Householder Extension 8 docs
  Small domestic

• 185 St Leonards Road Horsham West Sussex RH13 6BD

  DC/25/1977 Submitted 1 Dec 2025 179m away

  Prior Approval for the erection of a single storey rear larger home extension, which would project 3.50m from the rear elevation, comprising a maximum height of 3.30m and eaves height of 2.90m.

  Withdrawn Prior approval Extension 16 docs
  Small domestic

• 185 St Leonards Road Horsham West Sussex RH13 6BD

  DC/26/0174 Submitted 2 Feb 2026 179m away

  Demolition of existing conservatory and erection of a single storey rear extension. Replacement of flat roof on existing single storey extension.

  Granted Householder Extension Demolition 22 docs
  Small domestic

• 187 St Leonards Road Horsham West Sussex RH13 6BD

  DC/05/1959 Submitted 10 Aug 2005 183m away

  Single-storey rear extension

  Granted Full applications Extension
  Small domestic

• DC/26/1357 Awaiting decision

  3 Cavendish Close Horsham West Sussex RH12 5HX

  Surgery to 1 x Oak

  24 Aug 2026 Trees
• DC/26/1343 Awaiting decision

  7 Deacon Place Southwater West Sussex RH13 9GY

  Surgery to 1 x Ash

  21 Aug 2026 Trees
• DC/26/1334 Awaiting decision

  3 Greenacre Close Storrington West Sussex RH20 4QG

  Surgery to 2 x Oak trees

  19 Aug 2026 Trees
• DC/26/1337 Awaiting decision

  5 Gaskyns Close Rudgwick West Sussex RH12 3HE

  Surgery to 1 x Ash tree and Small Hazel Trees

  19 Aug 2026 Trees
• DC/26/1328 Awaiting decision

  Burford House Rambledown Lane West Chiltington West Sussex RH20 2NW

  Surgery to 2 x Oaks, 1 x Silver Birch and 1 x Maple

  17 Aug 2026 Trees