Planning application
4 Riverside Horsham West Sussex RH12 1NX
Works: Extension
Relates to DC/26/0364
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Non Material Amendment to previously approved application DC/26/0364 (Erection of a two storey side extension) to step the extension in off the boundary by 100mm.
As published by the council, reference DC/26/1118
Application record
- Reference
- DC/26/1118
- Type
- Non-Material Amendments Application
- Status
- Decided
- Decision
- Granted As published: Application Permitted
- Received
- 13 Jul 2026
- Validated
- 13 Jul 2026
- Decided
- 4 Aug 2026
- Ward
- Denne
- Parish
- Horsham TC
- Decision by
- Delegated Decision
- Postcode
- RH12 1NX
Site history
Applications at this address on the Horsham register
This site has had 2 applications since 2026: 1 approved, 0 refused.
-
DC/26/0364 Decided
4 Riverside Horsham West Sussex RH12 1NX
Erection of a two storey side extension.
Timeline
Dates from the published record
-
13 Jul 2026
Received by Horsham
-
4 Aug 2026
Decision issued: Application Permitted
-
4 Aug 2026
Added to PlanIndex
Related applications
Cases linked to this one on the register
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DC/26/0364 Decided
4 Riverside Horsham West Sussex RH12 1NX
Erection of a two storey side extension.
Who's behind it
Company information only, from the register and Companies House
Commercial Drawing Service Agent, registered in Epsom
Active · incorporated 1995 · Epsom
80 applications on PlanIndex · across 9 councils · 92% granted
Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.
See their track recordDocuments
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.
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Open the documentsWhat this grant of permission means
Horsham granted permission on 4 August 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.
About amendment applications
An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
4 Riverside Horsham West Sussex RH12 1NX
98% historically approved · decision due ~5 May
Erection of a two storey side extension.
Decided Householder Extension 15 docsDomestic -
7 Riverside Horsham West Sussex RH12 1NX
Erection of a first floor side extension and single-storey rear extension.
Granted Householder Extension 14 docsSmall domestic -
17 The Crescent Horsham West Sussex RH12 1NA
98% historically approved · decision due ~15 Oct
Demolition of existing single storey front extension and erection of replacement single storey front extension, erection of a single storey rear extension, installation of front and rear dormer windows, alterations to fenestration, installation of a rooflight, erection of a roof terrace, and associated landscaping works.
Awaiting decision Householder Extension Loft or dormer +2 11 docsSmall domestic -
Summerbank 11 The Crescent Horsham West Sussex RH12 1NA
Demolition of existing rear extension and erection of a single storey rear extension.
Granted Householder Extension Demolition 12 docsSmall domestic -
8 The Crescent Horsham West Sussex RH12 1NB
Erection of a single storey rear extension.
Granted Householder Extension 13 docsSmall domestic -
Managers Office Hills Place Horsham West Sussex RH12 1XT
Surgery to 1x Common Yew, 1x Copper Beech, 2x Sycamore, 1x Common Elder. Fell 1x Jacquemont's Birch.
Granted Trees 5 docs
Other amendment applications
In Horsham
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DC/26/1447 Refused
The Hollyhocks 6 Stane Street Adversane West Sussex RH14 9JJ
Non Material Amendment to previously approved application DC/23/1258 (Construction of single storey rear extension. Replacement of windows throughout. Removal of asbestos and reconfiguration of ground and first floor layouts) Redesign of proposed roof form.
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DC/26/1443 Split decision
Lacewood Lodge Priory Fields Monastery Lane Storrington West Sussex
Non Material Amendment to previously approved application DC/25/1329 (Change of use of volunteers agricultural storage barn to 1 no. residential unit) relocation of drain to front of building, installation of back door, west facing sliding glass door, kitchen window to eastern elevation and installation of flue.
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DC/26/1292 Granted
Denver Storage Okehurst Lane Billingshurst West Sussex RH14 9HR
Removal of Conditions 11, 19, 20, 21, 27, 38 and 39 of previously approved application DC/22/1458 (Demolition of the existing building and erection of 3no storage units (Use Class B8), incorporating vehicular access, landscaping, and on-site parking provision) relating to water neutrality.
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DC/26/1191 Granted
The Old Piggery Fryern Road Storrington Pulborough West Sussex RH20 4BJ
Variation of Conditions 1 and 13 to previously approved application DC/26/0357 (Conversion, change of use and alterations and extensions to existing building to form 1no. detached self-build dwelling and associated works) relating to amended plans, layout and materials.
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DC/26/1410 Granted
Moralee Farm Haglands Lane West Chiltington West Sussex RH20 2QS
Non Material Amendment to previously approved application DC/22/2322 (Erection of a rural worker's dwelling and agricultural building) to amend the ground floor plan.