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 Windsor?
In Windsor, 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). Building costs in the South East run about 12% above the UK average, and the figures for Windsor are adjusted to reflect that. 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:
- Project size and complexity
- Planning or building regulations stage
- Structural engineer’s fees
- 3D visuals
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 Windsor
The approval route for Windsor is set by planning law 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
Handled as part of most architectural drawings:
- Building regulations drawings and specification
- Measured survey of the existing house
- 3D views on request
- Design options and sketch layouts
- Planning drawings: plans, elevations, site and location plans
- 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 Windsor
Commuter towns across the South East have many 1930s and post-war semis that suit rear extensions and hip-to-gable loft conversions.
Our Windsor coverage includes postcode districts SL4, and we also work in nearby places such as Slough, Egham and Staines.
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
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 Windsor
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 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 structural calculations?
We coordinate a chartered structural engineer for calculations and beam designs.
How much does a set of architectural drawings cost in Windsor?
In Windsor, 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.
Do you prepare architectural drawings in Windsor?
Yes. We prepare architectural drawings across Windsor, including postcodes SL4. Every project starts with a free home visit.