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 Purley?
In Purley, a set of architectural drawings typically costs £2,000–£5,750 for planning and building regulations drawings for a typical extension, including VAT at 20% (standard rate). We start from a UK-wide guide and adjust it for London, where labour and materials are typically about 30% above average. Council application fees are extra.
| Size or type | Guide range |
|---|---|
| Planning and building regulations drawings for a typical extension | £2,000–£5,750 |
| Larger or more complex projects | £5,750–£7,250 |
The biggest cost drivers are:
- Project size and complexity
- Planning or building regulations stage
- Structural engineer’s fees
- Number of design options
Use the guide price tool to see how size and specification change the figure, then ask for a written, itemised quote.
Planning and building regulations in Purley
Whether you need planning permission depends on your house and its location 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
The work we manage on a set of architectural drawings:
- Planning drawings: plans, elevations, site and location plans
- Building regulations drawings and specification
- 3D views on request
- Design options and sketch layouts
- Party wall drawings where needed
- Structural calculations coordinated
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 Purley
Victorian and Edwardian terraces dominate many London streets, which is why side return, wraparound and mansard projects are so common here.
From CR8 outwards, we take on projects throughout Purley and the surrounding parts of Greater London.
How it works
- 01
Survey and brief
We visit, talk through what you want and record the existing building.
- 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 Purley
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 Purley?
Yes. We prepare architectural drawings across Purley, including postcodes CR8. Every project starts with a free home visit.
Can I use the drawings with another builder?
Yes. Drawings you pay for are yours to use for the project.
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.
How much does a set of architectural drawings cost in Purley?
In Purley, a set of architectural drawings typically costs £2,000–£5,750 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.