Architectural design and planning in Carmarthen

Covering Carmarthen

We work in Carmarthen (SA31) and the places around it, including Llanelli, Ammanford and Pontarddulais.

Homes in Dyfed

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 is included in architectural design and planning in Carmarthen?

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.

Measured survey of the existing house
Submission and liaison with the planning officer
Building regulations drawings and specification

How much should I budget for architectural design and planning?

Guide prices for architectural design and planning, including VAT where it applies. Your fixed price is confirmed in writing after the survey.

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

How is architectural design and planning approved in Carmarthen?

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 can change the price or programme?

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.

How does the project run?

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.
We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.

What people ask before starting

How much do extension plans cost?

Typically £3,000 to £7,000 including VAT from measured survey to building regulations drawings, plus council fees.

Can I use your drawings with another builder?

Yes. If you buy drawings on their own, they are yours to use.

Can you visit a house in Carmarthen to quote?

Yes. After a short call we arrange a site visit to measure up and agree what the design needs to do, then send a written price.

Other towns nearby

Learn more about architectural design and planning, or see every project we cover in Carmarthen.