West Sussex · RH12, RH13
Architectural Design in Horsham
Architectural design covers turning a brief into buildable drawings — concept layouts, elevations and 3D visuals, then progressing an agreed scheme to planning-application standard and finally to detailed Building Regulations drawings a builder can price and construct from.
In Horsham, that covers Roffey, Holbrook, Littlehaven, Denne, Trafalgar, Broadbridge Heath, Southwater, Warnham, Colgate. Horsham's town centre retains a historic core of timber-framed and Georgian buildings around the Carfax and Causeway, surrounded by Victorian villas, interwar suburbs and newer developments on the town's edges. The surrounding villages and countryside sit close to the South Downs, which shapes both the property styles and the planning context for extension and renovation work.
Coverage
Areas we cover in Horsham for architectural design
Property styles in Horsham
Horsham has a strong stock of period cottages and Victorian villas in and around the town centre, alongside 20th-century family housing in the surrounding estates and larger detached homes in the outlying villages. Extension and loft conversion potential varies significantly between the historic core and the more recent suburbs.
Planning considerations
Horsham District Council is the local planning authority. The town centre, including the Causeway, is a conservation area with a number of listed buildings, meaning alterations to visible elevations, windows and materials are more tightly controlled. Some outlying villages also have their own conservation area designations, which we check before advising on likely planning routes.
How it works
Our architectural design process
- 01
Brief and site survey
Understanding what you want from the project, a measured survey of the existing property, and a review of planning constraints.
- 02
Concept design
Initial layout and massing options for your review, testing what the site and planning policy can realistically support.
- 03
Developed design
Refining the agreed concept into a full scheme — floor plans, elevations and sections — ready for planning submission where needed.
- 04
Planning submission
Preparing and submitting the planning application (or confirming permitted development where it applies), and handling any queries from the planning authority.
- 05
Technical design
Progressing the approved scheme to Building Regulations drawings, coordinated with structural calculations, ready to build from.
- 06
Handover to construction
Drawings and specification pass directly into the build programme, with the design team available through construction for any site queries.
Also in this area
Other services we provide in Horsham
Nearby coverage
Architectural Design in nearby areas
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FAQs
Architectural Design in Horsham: FAQs
Do you provide architectural design across all of Horsham?
Yes, we cover the RH12 and RH13 postcode areas in full, including Roffey, Holbrook, Littlehaven, Denne, Trafalgar, Broadbridge Heath, Southwater, Warnham, Colgate.
Do I need an architect for a home extension?
Not always by law, but a well-developed design makes both planning permission and the build itself go more smoothly — particularly for anything beyond a simple single-storey extension. We can advise at the initial consultation what level of design your specific project needs.
Can you handle the planning application for me?
Yes, preparing and submitting the planning application (or confirming the project falls under permitted development) is part of the service, including responding to any queries the planning authority raises.
Is Horsham town centre a conservation area?
Yes, the historic core around the Carfax and Causeway is a conservation area with a number of listed buildings, which affects what changes can be made without planning permission or listed building consent.
Get a quote for architectural design in Horsham
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Last reviewed 2026-07-19.