94 Oakhill Road Horsham West Sussex RH13 5LQ

1. 6 Nov 2025

   Received by Horsham

2. 12 Nov 2025

   Validated

   Checked as complete and ready for consideration.

3. 7 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.

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

• 28 Highlands Avenue Horsham West Sussex RH13 5LN

  DC/26/0133 Submitted 28 Jan 2026 148m away

  93% historically approved · decision due ~18 May

  Installation of a side dormer (Lawful Development Certificate - Proposed).

  Awaiting decision Lawful development Loft or dormer 8 docs

• 18 Bethune Road Horsham West Sussex RH13 5JP

  DC/26/0152 Submitted 22 Jan 2026 168m away

  Prior Approval for the erection of a single storey rear larger home extension, which would project 4.0m from the rear elevation, comprising a maximum height of 3.65m and an eaves height of 2.75m.

  Granted Prior approval Extension 8 docs
  Small domestic

• 18 Bethune Road Horsham West Sussex RH13 5JP

  DC/25/2039 Submitted 8 Dec 2025 168m away

  Erection of a two storey rear extension.

  Withdrawn Householder Extension 10 docs
  Domestic

• 18 Bethune Road Horsham West Sussex RH13 5JP

  DC/26/0426 Submitted 3 Mar 2026 168m away

  93% historically approved · decision due ~12 May

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

  Awaiting decision Lawful development Extension 6 docs
  Small domestic

• 29 Highlands Avenue Horsham West Sussex RH13 5LW

  DC/23/0295 Submitted 17 Feb 2023 180m away

  Erection of a single storey rear extension.

  Granted Householder Extension 12 docs
  Small domestic

• 29 Highlands Avenue Horsham West Sussex RH13 5LW

  DC/26/0394 Submitted 27 Feb 2026 181m away

  98% historically approved · decision due ~1 May

  Erection of a first floor rear and side extension, and conversion of catslide roof into habitable living space.

  Awaiting decision Householder Extension 13 docs
  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