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 Colwyn Bay?
In Colwyn Bay, a set of architectural drawings typically costs £1,500–£4,250 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 Wales, where labour and materials are typically about 8% below average. Council application fees are extra.
| Size or type | Guide range |
|---|---|
| Planning and building regulations drawings for a typical extension | £1,500–£4,250 |
| Larger or more complex projects | £4,250–£5,250 |
What moves the price most:
- 3D visuals
- Structural engineer’s fees
- Planning or building regulations stage
- Project size and complexity
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 Colwyn Bay
The approval route for Colwyn Bay is set by planning law in Wales. In Wales drawings are prepared to suit the council’s validation requirements and Welsh building regulations.
The Party Wall etc. Act 1996 applies in Wales, so notices must be served before work on a shared wall, on the boundary, or excavation close to a neighbour’s foundations.
At the survey we check your house’s planning history and any restrictions, and tell you which route applies.
What we handle
Handled as part of most architectural drawings:
- 3D views on request
- Design options and sketch layouts
- Tender-ready drawing pack
- Building regulations drawings and specification
- Planning drawings: plans, elevations, site and location plans
- 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 Colwyn Bay
Wales has many terraced valley streets, stone cottages and post-war estates, so extension designs are shaped by slopes, materials and local character.
Our Colwyn Bay coverage includes postcode districts LL29, and we also work in nearby places such as Llandudno, Rhyl and Prestatyn.
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
Application drawings
Plans, elevations and supporting documents prepared for the council.
- 04
Approval
We follow the application through to a decision and pass on the approved drawings.
Questions about architectural drawings in Colwyn Bay
Do you prepare structural calculations?
We coordinate a chartered structural engineer for calculations and beam designs.
Do you prepare architectural drawings in Colwyn Bay?
Yes. We prepare architectural drawings across Colwyn Bay, including postcodes LL29. Every project starts with a free home visit.
How much does a set of architectural drawings cost in Colwyn Bay?
In Colwyn Bay, a set of architectural drawings typically costs £1,500–£4,250 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.
How long do drawings take?
Typically 2 to 6 weeks from survey, depending on revisions.
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.
