7 Primrose Copse Horsham West Sussex RH12 5PY

1. 22 Feb 2023

   Received by Horsham

2. 18 Apr 2023

   Decision issued: Application Permitted

3. 26 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 lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• 54 Primrose Copse Horsham West Sussex RH12 5PZ

  DC/26/0935 Submitted 10 Jun 2026 71m away

  93% historically approved · decision due ~5 Aug

  Conversion of loft with rear dormer and 2no. front rooflights (Lawful Development Certificate - Proposed).

  Awaiting decision Lawful development Loft or dormer 10 docs

• 1 Burns Close Horsham West Sussex RH12 5PE

  DC/25/1721 Submitted 24 Oct 2025 150m away

  Removal of existing boundary and erection of a new 1.8m high close board timber fence with a trellis above.

  Granted Householder 18 docs
  Small domestic

• 24 Burns Close Horsham West Sussex RH12 5PF

  DC/26/0016 Submitted 7 Jan 2026 162m away

  Erection of a two storey side extension, erection of a front porch, alterations to fenestration, and associated alterations to access and landscaping.

  Granted Householder Extension Windows or glazing 12 docs
  Small domestic

• 21 Byron Close Horsham West Sussex RH12 5PA

  DC/24/1303 Submitted 27 Aug 2024 196m away

  Surgery to 2x trees.

  Granted Trees 5 docs

• 4 Fivens Place Horsham West Sussex RH12 5AS

  DC/26/0368 Submitted 27 Feb 2026 206m away

  Prior Approval for the erection of a single storey rear larger home extension, which would project 3.60m from the rear elevation, comprising a maximum height of 2.70m and eaves height of 2.20m.

  Granted Prior approval Extension 6 docs
  Small domestic

• 3 Coleridge Close Horsham West Sussex RH12 5PB

  DC/26/0277 Submitted 17 Feb 2026 248m away

  Erection of a single storey front bay extension.

  Granted Householder Extension 13 docs
  Small domestic

• DC/26/1062 Granted

  Hayes Farm, Unit 3 Gay Street Pulborough West Sussex RH20 2HL

  Use of premises (Unit 3) as a light-industrial workshop for the purpose of joinery construction (Lawful Development Certificate - Existing).

  3 Jul 2026 Lawful development
• DC/26/1028 Granted

  17 Purton Road Horsham West Sussex RH12 2HB

  Erection of a single storey rear infill extension (Lawful Development Certificate - Proposed).

  25 Jun 2026 Lawful development
• DC/26/1265 Awaiting decision

  Malthouse Cottage Farm Malthouse Lane Ashington West Sussex RH20 3BU

  Use of land forming part of the domestic curtilage of Malthouse Cottage Farm for the stationing of a mobile home to provide an ancillary annex to the house (Lawful Development Certificate - Proposed)

  7 Aug 2026 Lawful development
• DC/26/1271 Awaiting decision

  Waterside Five Oaks Road Slinfold West Sussex RH13 0RL

  Formation of hardstanding on a date four years previous (Lawful Development Certificate - Existing).

  7 Aug 2026 Lawful development
• DC/26/1319 Awaiting decision

  Little Meadow Kerves Lane Horsham West Sussex RH13 6ES

  Erection of outbuilding for use as a garage/gym and workshop. (Lawful Development Certificate - Proposed).

  5 Aug 2026 Lawful development