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 Caterham?
In Caterham, 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 Caterham. 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 |
The main things that change the cost:
- Number of design options
- Measured survey complexity
- Structural engineer’s fees
- Planning or building regulations stage
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 Caterham
Here is how the rules work for a set of architectural drawings 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.
Our first visit includes a check of your planning history, so you know the route before paying for drawings.
What we handle
On a typical set of architectural drawings we handle:
- Building regulations drawings and specification
- Structural calculations coordinated
- 3D views on request
- Party wall drawings where needed
- Design options and sketch layouts
- Tender-ready drawing pack
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 Caterham
Commuter towns across the South East have many 1930s and post-war semis that suit rear extensions and hip-to-gable loft conversions.
Projects in Caterham (CR3) are surveyed in person before we quote, so the price reflects your actual property.
How it works
- 01
Measured survey
We visit and measure the house so the drawings start from accurate information.
- 02
Design options
Sketch layouts to agree the approach before detailed drawing starts.
- 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 Caterham
What are building regulations drawings?
More detailed drawings and specifications showing structure, insulation, fire safety, drainage and ventilation, used for building control approval and pricing.
Do you prepare architectural drawings in Caterham?
Yes. We prepare architectural drawings across Caterham, including postcodes CR3. Every project starts with a free home visit.
How long do drawings take?
Typically 2 to 6 weeks from survey, depending on revisions.
Do you prepare structural calculations?
We coordinate a chartered structural engineer for calculations and beam designs.
How much does a set of architectural drawings cost in Caterham?
In Caterham, 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.
