79 Lambs Farm Road Horsham West Sussex RH12 4LE

1. 13 Jan 2026

   Received by Horsham

2. 9 Mar 2026

   Decision issued: Application Permitted

3. 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

• 79 Lambs Farm Road Horsham West Sussex RH12 4LE

  DC/26/0543 Submitted 27 Mar 2026 0m away

  Erection of single storey side and rear extension.

  Granted Householder Extension 19 docs
  Small domestic

• 1 Greenfields Way Horsham West Sussex RH12 4LF

  DC/23/0319 Submitted 21 Feb 2023 28m away

  Erection of a two-storey side extension and creation of turning area on existing driveway.

  Granted Householder Extension 11 docs
  Domestic

• 88 Lambs Farm Road Horsham West Sussex RH12 4LA

  DC/26/1174 Submitted 10 Jul 2026 89m away

  98% historically approved · decision due ~17 Sep

  Demolition of existing garage and rear sun room and erection of single storey side and rear extension and front porch, and replacement of front tile hanging with timber cladding.

  Awaiting decision Householder Extension Demolition 10 docs
  Small domestic

• 1 Lambs Farm Close Horsham West Sussex RH12 4JZ

  DC/26/0110 Submitted 23 Jan 2026 104m away

  Erection of a first floor side extension. Erection of a front entrance porch. Installation of bi-folding doors to the rear elevation. Installation of a window to the side elevation.

  Granted Householder Extension Windows or glazing 15 docs
  Small domestic

• 5 Lambs Farm Close Horsham West Sussex RH12 4JZ

  DC/25/2071 Submitted 11 Dec 2025 108m away

  Erection of a first-floor side extension over existing garage, erection of front porch and associated alterations.

  Granted Householder Extension 12 docs
  Small domestic

• 65 Lambs Farm Road Horsham West Sussex RH12 4JJ

  DC/26/0066 Submitted 16 Jan 2026 133m away

  Erection of a single storey rear infill and 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