Planning application
36 Rookwood Park Horsham West Sussex RH12 1UB
Works: Extension Small domestic
Read from the description, not a valuation. How we read the register
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Erection of a single storey rear flat roof extension, formation of new patio door opening and front entrance door. (Lawful Development Certificate - Proposed).
As published by the council, reference DC/26/1206
Application record
- Reference
- DC/26/1206
- Type
- Certificate Proposed Lawful Use/Dev
- Status
- Registered
- Received
- 29 Jul 2026
- Validated
- 11 Aug 2026
- Ward
- Trafalgar
- Parish
- Horsham TC
- Decision by
- Delegated Decision
- Postcode
- RH12 1UB
Timeline
Dates from the published record
-
29 Jul 2026
Received by Horsham
-
11 Aug 2026
Validated
Checked as complete and ready for consideration.
-
16 Aug 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 6 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.
Who's behind it
Company information only, from the register and Companies House
Agent on file, an architecture practice
6 applications on PlanIndex · across 4 councils
Trade members see who it is, their full track record, and every application they have filed.
See who's behind itDocuments
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 documentsWhat 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.
Nearby applications
Within 500 metres
-
The Barn 24 Rookwood Park Horsham West Sussex RH12 1UB
Demolition of existing rear conservatory and erection of replacement single-storey extension, conversion of roof with front and rear rooflights, and conversion of garage into living accommodation.
Granted Householder Extension Loft or dormer +1 9 docsSmall domestic -
4 Rookwood Park Horsham West Sussex RH12 1UB
Demolition of existing conservatory and erection of a single storey rear orangery. Removal of existing bay window to study and erection of a single storey rear extension. Installation of new dining room window to the front/side elevation.
Granted Householder Extension Demolition +1 10 docsSmall domestic -
-
87 Cootes Avenue Horsham West Sussex RH12 2AF
Erection of a single storey rear extension.
Granted Householder Extension 11 docsSmall domestic -
9 Rookwood Park Horsham West Sussex RH12 1UB
Conversion of loft to include rear dormer with triangular central fenestration. Installation of 5 nos velux window a and a triangular central fenestration to front elevation. Internal alterations to ground and first floors.
Granted Householder Loft or dormer Windows or glazing 37 docsDomestic -
Wedgwood Farthings Hill Horsham West Sussex RH12 1TS
98% historically approved · decision due ~17 Jul
Demolition of existing conservatory and erection of a part single and part two storey rear extension with first floor terrace. Erection of an acoustic fence to the north-west boundary and alterations to the existing entrance gates and piers.
Awaiting decision Householder Extension Demolition 8 docsSmall domestic
Other lawful development applications
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).
-
DC/26/1028 Granted
17 Purton Road Horsham West Sussex RH12 2HB
Erection of a single storey rear infill extension (Lawful Development Certificate - Proposed).
-
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)
-
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).
-
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).