Design and build two-storey extensions in Powys

Powys at a glance

Nation: Wales
Price region: Wales
Postcode areas: LD, NP, SY
Towns covered: 8 listed below, plus surrounding villages
Site visits: Free, no obligation

What a design and build project involves

A design and build project for a two-storey extension involves one team taking responsibility for the whole job: the survey, design, planning or permitted development, structural engineering, building regulations, party wall matters where they apply and the construction itself. You deal with one point of contact instead of coordinating an architect, engineer and builder separately. The design stage is priced first, then the build at a fixed price.

The main places we list in Powys are Newtown (SY16), Brecon (LD3), Welshpool (SY15), Llandrindod Wells (LD1), Knighton (LD7) and Llanidloes (SY17). We cover the villages in between too.

Fees

The design stage is priced in writing before it starts, and the build is a fixed price in writing once the design is agreed.

Rules in Wales

In Wales, design and build covers the Welsh permitted development tests or a householder application (£585), building regulations approval under the Welsh Approved Documents and Party Wall Act notices where needed. We follow the Welsh rules, which allow more under permitted development and differ on energy efficiency.

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

How the stages work

We start with a free site visit, then a design stage priced in writing before it begins. That covers the survey, design, approvals, structural design and building regulations. Once the design is agreed, the build price is fixed in writing before work starts.

Cost checking as you design

Because the people drawing the extension also build it, each design option comes with a guide cost. That avoids the common problem of an approved design that turns out to be too expensive once builders price it.

How we work in Powys

Start at your house
We come to your home in Powys, measure up, check the ground floor walls and roof structure, and note anything near the boundaries.
Plans, then approval
Measured survey, design, then the right approval route for your house. We explain each step before we take it.
Structure and building control
A structural engineer sizes the foundations and steels, and we get building regulations approval before work starts.
Build and sign-off
Vetted teams working under S&K build the extension, and we arrange the building control completion certificate at the end.

Towns we cover in Powys

Design and build two-storey extensions in Powys: questions

Do I have to use you for the build if I pay for the design stage?

No. The design stage is priced separately, so you can take the approved drawings to other builders if you choose. Most people who use design and build carry on to the build, because the design has been costed as it developed.

Who builds my extension?

Your extension is built by vetted teams working under S&K, with the project managed by us from design to completion. You have one point of contact throughout, and the same team that prepared the design is responsible for the build.

When is the build price fixed?

Once the design is agreed and the drawings, structural calculations and specification are complete. Before that we give guide costs at each stage. The fixed price is set out in writing before work starts, and any changes you ask for after that are priced separately before they are made.

Neighbouring areas

All extension services in Powys · About design and build two-storey extensions