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 Sunbury-on-Thames?
In Sunbury-on-Thames, 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). The guide for Sunbury-on-Thames reflects typical costs in the South East, roughly 12% above the UK-wide figure. 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:
- 3D visuals
- Planning or building regulations stage
- Structural engineer’s fees
- Project size and complexity
For a figure based on your own measurements, try the guide price tool, then book a free home visit for a fixed quote.
Planning and building regulations in Sunbury-on-Thames
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.
Building regulations approval comes from the council’s building control service or a registered building control approver. The work is inspected at key stages, such as foundations, drainage and insulation, and a completion certificate is issued at the end.
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:
- Tender-ready drawing pack
- Structural calculations coordinated
- 3D views on request
- Design options and sketch layouts
- Building regulations drawings and specification
- Measured survey of the existing house
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 Sunbury-on-Thames
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.
From KT12 outwards, we take on projects throughout Sunbury-on-Thames and the surrounding parts of Surrey.
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
Application drawings
Plans, elevations and supporting documents prepared for the council.
- 04
Submission and follow-up
We submit the application and deal with questions from the council or building control.
Questions about architectural drawings in Sunbury-on-Thames
How much does a set of architectural drawings cost in Sunbury-on-Thames?
In Sunbury-on-Thames, 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.
What drawings are needed for planning?
Usually existing and proposed floor plans and elevations, a block plan and a location plan. Some councils need more.
Can I use the drawings with another builder?
Yes. Drawings you pay for are yours to use for the project.
Do you prepare architectural drawings in Sunbury-on-Thames?
Yes. We prepare architectural drawings across Sunbury-on-Thames, including postcodes KT12 and TW16. Every project starts with a free home visit.
How long do drawings take?
Typically 2 to 6 weeks from survey, depending on revisions.
