Covering Llantwit Major
Llantwit Major is about 14 miles west of Cardiff. We also cover Cowbridge (4 miles to the north-east), Bridgend and Barry.
Homes in South Glamorgan
Welsh homes include long terraces built into hillsides, stone cottages and modern estates, and sloping sites often shape how and where an extension can go.
What do you get with architectural design and planning?
Designing and building under one roof means the drawings are priced as they are drawn, so there are fewer surprises when the quote arrives. If you only need drawings and a planning application, we can do that and you are free to use any builder.
- Design options and 3D views
- Submission and liaison with the planning officer
- Building regulations drawings and specification
How much should I budget for architectural design and planning?
Use these ranges to budget for architectural design and planning; the survey turns them into a fixed price for the agreed specification.
| Architectural design and planning | Guide price incl. VAT |
|---|---|
| Measured survey and existing drawings | £500 to £1,200 |
| Planning drawings and application | £1,200 to £3,000 |
| Building regulations drawings and specification | £1,000 to £2,500 |
| Structural calculations | £500 to £2,000 |
What approvals does architectural design and planning need in Wales?
In Wales the planning rules, including what counts as permitted development, are set by the Welsh Government, and Welsh building regulations differ in places from England’s. We check both against your house before drawings are finalised, and handle party wall notices where needed.
We prepare applications to Welsh councils and check the Welsh permitted development rules, which differ from England's.
What can affect architectural design and planning?
- Planning and building regulations are separate approvals; most projects need building regulations even when planning is not needed.
- Conservation areas and listed buildings need extra design care and supporting statements.
From first call to completion
- Tell us about the project. Call, use the guide price tool or send the form with a few photos and a postcode.
- We visit and measure. A surveyor checks the house, the boundaries and the ground, and discusses what is realistic.
- Design and fixed price. You get drawings and a written price for the agreed specification before anything is ordered.
- Construction and completion. One site lead co-ordinates every trade through to the building control certificate.
Your questions answered
Can I use your drawings with another builder?
Yes. If you buy drawings on their own, they are yours to use.
Do I need a structural engineer?
For steels, new openings, lofts and extensions, yes. We arrange the calculations.
Do you work in Llantwit Major?
Yes. Llantwit Major is within our coverage for architectural design and planning, along with nearby Cowbridge and Bridgend.
Also covering
- Architectural design and planning in Cowbridge
- Architectural design and planning in Bridgend
- Architectural design and planning in Barry
- Architectural design and planning in Porthcawl
Learn more about architectural design and planning, or see every project we cover in Llantwit Major.

