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 Gorseinon?
In Gorseinon, 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). Building costs in Wales run about 8% below the UK average, and the figures for Gorseinon are adjusted to reflect that. Council application fees are extra.
| Size or type | Guide range |
|---|---|
| Planning and building regulations drawings for a typical extension | £1,500–£4,250 |
| Larger or more complex projects | £4,250–£5,250 |
The main things that change the cost:
- Measured survey complexity
- Number of design options
- Structural engineer’s fees
- 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 Gorseinon
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.
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:
- Structural calculations coordinated
- Party wall drawings where needed
- Measured survey of the existing house
- Tender-ready drawing pack
- Building regulations drawings and specification
- Design options and sketch layouts
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 Gorseinon
Wales has many terraced valley streets, stone cottages and post-war estates, so extension designs are shaped by slopes, materials and local character.
Our Gorseinon coverage includes postcode districts SA4, and we also work in nearby places such as Llanelli, Swansea and Clydach.
How it works
- 01
Survey and brief
We visit, talk through what you want and record the existing building.
- 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 Gorseinon
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.
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.
How much does a set of architectural drawings cost in Gorseinon?
In Gorseinon, 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 you prepare architectural drawings in Gorseinon?
Yes. We prepare architectural drawings across Gorseinon, including postcodes SA4. 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.
