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 Caernarfon?
In Caernarfon, 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). Prices across Wales are typically 8% below the UK average for this kind of work, which is reflected in the range for Caernarfon. 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 |
Your quote will depend mainly on:
- Number of design options
- Planning or building regulations stage
- 3D visuals
- Measured survey complexity
A guide range is only a starting point: the guide price tool gives an instant figure for your size, and a free survey turns it into a fixed quote.
Planning and building regulations in Caernarfon
Whether you need planning permission depends on your house and its location in Wales. In Wales drawings are prepared to suit the council’s validation requirements and Welsh building regulations.
Building regulations in Wales are set by the Welsh Government. Approval comes from the council’s building control service or a registered building control approver, with inspections during the work and a completion certificate at the end.
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:
- 3D views on request
- Building regulations drawings and specification
- Measured survey of the existing house
- Structural calculations coordinated
- Planning drawings: plans, elevations, site and location plans
- Party wall drawings where needed
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 Caernarfon
Wales has many terraced valley streets, stone cottages and post-war estates, so extension designs are shaped by slopes, materials and local character.
Our Caernarfon coverage includes postcode districts LL55, and we also work in nearby places such as Bangor, Holyhead and Llandudno.
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
Drawings and documents
The drawings and forms the council and building control need.
- 04
Submission and follow-up
We submit the application and deal with questions from the council or building control.
Questions about architectural drawings in Caernarfon
How much does a set of architectural drawings cost in Caernarfon?
In Caernarfon, 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.
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.
Do you prepare architectural drawings in Caernarfon?
Yes. We prepare architectural drawings across Caernarfon, including postcodes LL55. 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.