Malthouse Cottage Farm Malthouse Lane Ashington West Sussex RH20 3BU

1. 7 Aug 2026

   Received by Horsham

2. 23 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 2 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Horsham took a median of 56 days over the applications it decided in the last year.

This application is with Horsham for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

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

• Malthouse Farm Malthouse Lane Ashington West Sussex RH20 3BU

  DC/26/0117 Submitted 26 Jan 2026 114m away

  98% historically approved · decision due ~13 Apr

  Conversion of existing garage into a one bedroom annexe.

  Awaiting decision Householder 19 docs
  Domestic

• Moonfleet Mill Lane Ashington West Sussex RH20 3BX

  DISC/26/0138 Submitted 29 Apr 2026 477m away

  98% historically approved · decision due ~24 Jun

  Application for Approval of Details Reserved by Condition 3 to approved application DC/26/0310

  Awaiting decision Conditions

• Moonfleet Mill Lane Ashington West Sussex RH20 3BX

  DC/26/0310 Submitted 20 Feb 2026 477m away

  Erection of an additional storey to one wing of the existing bungalow, and conversion of a flat roof into a pitched roof on the other wing of the existing bungalow. Erection of a detached garage.

  Granted Householder 20 docs
  Domestic

• The White House Mill Lane Ashington Pulborough West Sussex RH20 3BX

  DC/21/1013 Submitted 3 May 2021 498m away

  Erection of a single storey front extension and alterations to fenestration.

  Granted Householder Extension Windows or glazing 9 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/26/1271 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
• DC/26/1252 Awaiting decision

  43 Oriel Road Horsham West Sussex RH12 6AG

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

  4 Aug 2026 Lawful development