Building regulations for two-storey extensions in Dyfed

Dyfed at a glance

Nation: Wales
Price region: Wales
Postcode areas: SA, SY
Towns covered: 21 listed below, plus surrounding villages
Site visits: Free, no obligation

What a building regulations application involves

Building regulations approval for a two-storey extension involves preparing technical drawings and a specification that show how the extension meets the rules on structure, fire safety, insulation, ventilation, electrics and drainage, getting them approved and having the work inspected. At the end you receive a completion certificate.

The main places we list in Dyfed are Llanelli (SA15), Ammanford (SA18), Aberystwyth (SY24), Carmarthen (SA31), Haverfordwest (SA61) and Milford Haven (SA73). We cover the villages in between too.

Fees

Technical drawings and specification are a guide of £1,500–£4,000. The council's building control fee depends on the value of the work; we confirm every fee in writing before the design stage starts.

Rules in Wales

In Wales, building regulations approval follows the Welsh Approved Documents, which differ from England's in places, notably Part L for energy efficiency. Approval comes from the council's building control service or a registered approver. The structure, fire, ventilation and drainage checks are broadly similar, with a completion certificate at the end.

Approval in Wales: Householder planning application: £585. Councils normally decide householder applications within 8 weeks.

Building regulations: Building regulations approval under the Welsh Approved Documents, which differ from England's in places (notably energy efficiency).

The Party Wall etc. Act 1996 applies in Wales, so notices may be needed for work on or near a shared wall or boundary.

Getting the design right

Full plans and inspections

Full plans approval checks the design before work starts, which we recommend for two-storey extensions. Building control then inspects key stages, such as foundations, damp-proofing, drainage and insulation, before issuing the completion certificate.

How we work in Dyfed

Look at the house
We start in Dyfed with a free visit: measurements, photos, a look at the loft and drains, and a frank chat about budget.
Get it approved
Once you're happy with the design we submit it to the council for Dyfed and deal with any questions from the planning officer.
Technical design
We prepare the building regulations drawings, structural calculations and specification so the build price can be fixed.
On site
One project lead runs the job, keeps you updated and arranges inspections at each stage until completion.

Towns we cover in Dyfed