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 Caerphilly?
In Caerphilly, 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). That range is adjusted for Wales, where domestic building work typically costs around 8% below the national 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 |
The biggest cost drivers are:
- Structural engineer’s fees
- Project size and complexity
- Planning or building regulations stage
- 3D visuals
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 Caerphilly
Before anything is built in Caerphilly, we confirm which approvals apply 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.
If the answer is not clear-cut, we can apply for formal confirmation before you commit to the build.
What we handle
On a typical set of architectural drawings we handle:
- Tender-ready drawing pack
- Design options and sketch layouts
- Measured survey of the existing house
- Planning drawings: plans, elevations, site and location plans
- Structural calculations coordinated
- Building regulations drawings and specification
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 Caerphilly
Terraced houses in Welsh towns often have narrow plots, which suits rear and side return extensions and rear dormers.
If your home is in Caerphilly or close by in Risca, Pontypridd and Blackwood, a free home visit is the first step.
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
Approval
We follow the application through to a decision and pass on the approved drawings.
Questions about architectural drawings in Caerphilly
Can I use the drawings with another builder?
Yes. Drawings you pay for are yours to use for the project.
Do you prepare structural calculations?
We coordinate a chartered structural engineer for calculations and beam designs.
Do you prepare architectural drawings in Caerphilly?
Yes. We prepare architectural drawings across Caerphilly, including postcodes CF83. Every project starts with a free home visit.
How long do drawings take?
Typically 2 to 6 weeks from survey, depending on revisions.
How much does a set of architectural drawings cost in Caerphilly?
In Caerphilly, 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.