What is a set of architectural drawings?

Architectural design turns your ideas into drawings that a council and a builder can work from. It starts with a measured survey of the house, then design options, planning drawings and, once approved, detailed building regulations drawings and specifications.
How much does a set of architectural drawings cost in West Sussex?
In West Sussex, a set of architectural drawings typically costs £1,750–£5,000 for planning and building regulations drawings for a typical extension, including VAT at 20% (standard rate). Prices across the South East are typically 12% above the UK average for this kind of work, which is reflected in the range for West Sussex. Council application fees are extra.
| Size or type | Guide range |
|---|---|
| Planning and building regulations drawings for a typical extension | £1,750–£5,000 |
| Larger or more complex projects | £5,000–£6,250 |
Your quote will depend mainly on:
- Project size and complexity
- Planning or building regulations stage
- 3D visuals
- Number of design options
Your exact price depends on the survey and drawings. The guide price tool gives a quick range in the meantime.
Planning and building regulations in West Sussex
Before anything is built in West Sussex, we confirm which approvals apply in England. In England drawings are prepared to suit the local planning authority’s validation list and, later, building control.
Where work involves a shared wall, building on the boundary, or digging foundations within 3 metres of a neighbour’s building and deeper than its foundations (or within 6 metres for deeper work), the Party Wall etc. Act 1996 applies and notices must be served before work starts.
We check this for your address before design work starts, so there are no surprises later.
What we handle
What we take care of:
- Measured survey of the existing house
- Party wall drawings where needed
- Building regulations drawings and specification
- Design options and sketch layouts
- 3D views on request
- Planning drawings: plans, elevations, site and location plans
How long does it take?
Allow 2 to 6 weeks for drawings, depending on complexity. If the drawings are for a planning application, add the council’s decision period once they are submitted.
Building in West Sussex
The South East has a broad mix of housing, from Victorian terraces in the towns to post-war semis and newer estates, so extension types vary street by street.
Towns we cover in West Sussex include Crawley, Worthing, Bognor Regis, Littlehampton, Horsham and Haywards Heath.
How it works
- 01
Measured survey
We visit and measure the house so the drawings start from accurate information.
- 02
Concept design
Options for layout and appearance, revised until you are happy.
- 03
Drawings and documents
The drawings and forms the council and building control need.
- 04
Approval
We follow the application through to a decision and pass on the approved drawings.
Questions about architectural drawings in West Sussex
How much does a set of architectural drawings cost in West Sussex?
In West Sussex, a set of architectural drawings typically costs £1,750–£5,000 for planning and building regulations drawings for a typical extension, including VAT at 20% (standard rate). Your fixed price depends on the survey and drawings.
Can I use the drawings with another builder?
Yes. Drawings you pay for are yours to use for the project.
Do I need an architect?
Not necessarily. For extensions and lofts, an architectural technician’s drawings are common. For complex or sensitive sites, an architect may be better.
Do you prepare architectural drawings in West Sussex?
Yes. We prepare architectural drawings across West Sussex, including postcodes BN11, BN12, BN13, BN14 and BN15. Every project starts with a free home visit.
How long do drawings take?
Typically 2 to 6 weeks from survey, depending on revisions.
