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Planning application

28 Highlands Avenue Horsham West Sussex RH13 5LN

Awaiting decision Horsham DC/26/0133 Certificate Proposed Lawful Use/Dev

Works: Loft or dormer

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

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

As published by the council, reference DC/26/0133

Application record

Reference
DC/26/0133
Type
Certificate Proposed Lawful Use/Dev
Status
Registered
Received
28 Jan 2026
Validated
23 Mar 2026
Ward
Forest
Parish
Forest NC
Decision by
Delegated Decision
Postcode
RH13 5LN

Timeline

Dates from the published record

  1. 28 Jan 2026

    Received by Horsham

  2. 23 Mar 2026

    Validated

    Checked as complete and ready for consideration.

  3. 12 Aug 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 18 May 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.

Who's behind it

Company information only, from the register and Companies House

Agent on file, a construction firm registered in Cheadle

1 application on PlanIndex

Trade members see who it is, their full track record, and every application they have filed.

See who's behind it

Documents

Plans, drawings, consultee responses and the officer's report

8 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

Trade members open them from here.

Open the documents

What happens while it is decided

The process from here

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.

About lawful development applications

How this application type works

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

Nearby applications

Within 500 metres

In Horsham

  • 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