Covering Penarth
Our coverage around Penarth (CF64) also includes Cardiff (3 miles to the north) and Whitchurch.
Homes in South Glamorgan
Across Wales you find valley terraces, coastal towns, rural stone houses and newer estates, so access, slopes and local materials all feature in the design.
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
- Structural engineer’s calculations
What will architectural design and planning cost?
What architectural design and planning typically cost. These are guide ranges; the written quote for your house replaces them.
| 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?
Planning decisions in Wales are made by the local council, using permitted development rules set by the Welsh Government rather than England’s. Building regulations in Wales have their own approved documents, and the Party Wall etc. Act 1996 applies to work on shared walls and boundaries.
We prepare applications to Welsh councils and check the Welsh permitted development rules, which differ from England's.
What should I think about before starting?
- Pre-application advice from the council can help on sensitive sites.
- Conservation areas and listed buildings need extra design care and supporting statements.
What happens after I enquire?
- Tell us about the project. Call, use the guide price tool or send the form with a few photos and a postcode.
- Free site visit. We measure up, look at access, drains and the structure, and talk through options and budget.
- Price and paperwork. The design is priced line by line, and we submit the planning and building control applications.
- Construction and completion. One site lead co-ordinates every trade through to the building control certificate.
Architectural design and planning: common questions
How much do extension plans cost?
Typically £3,000 to £7,000 including VAT from measured survey to building regulations drawings, plus council fees.
Do I need a structural engineer?
For steels, new openings, lofts and extensions, yes. We arrange the calculations.
Do you work in Penarth?
Yes. Penarth is within our coverage for architectural design and planning, along with nearby Cardiff and Whitchurch.
Other towns nearby
- Architectural design and planning in Cardiff
- Architectural design and planning in Whitchurch
- Architectural design and planning in Barry
- Architectural design and planning in Caerphilly
Learn more about architectural design and planning, or see every project we cover in Penarth.

