Design and build two-storey extensions in Glasgow and Dunbartonshire

Glasgow and Dunbartonshire at a glance

Nation: Scotland
Price region: Scotland
Postcode areas: G
Towns covered: 19 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 standards, 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 Glasgow and Dunbartonshire are Glasgow (G1), Bearsden (G13), Newton Mearns (G77), Clydebank (G81), Vale of Leven (G82) and Bishopbriggs (G22). 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 Scotland

In Scotland, design and build covers the Class 1B check or a householder application (£371), the building warrant from the council's building standards service before work starts, and the completion certificate at the end. There is no Party Wall Act, so we handle neighbour matters under common law and title deeds.

Approval in Scotland: Householder planning application: £371. Councils have two months to decide a local planning application.

Building standards: A building warrant from the council's building standards service before work starts, and a completion certificate at the end. Scotland uses its own Technical Handbooks.

There is no Party Wall Act in Scotland. Shared walls and boundaries are governed by title deeds and common law, so we speak to neighbours early and record the condition of shared structures.

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 standards. 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 Glasgow and Dunbartonshire

Measure and listen
A visit to Glasgow and Dunbartonshire to understand how you live in the house now and what the extra rooms need to do, plus a first look at the structure.
Choose the approval route
Some designs fit permitted development, most need a householder application. We decide which applies in Scotland before drawing in detail.
Price it properly
Once the engineer's calculations are in, we fix the build price in writing, with a clear list of what's included.
Build
Foundations, walls, floor, roof, windows, then first and second fix. We break through into the house as late as we can.

Towns we cover in Glasgow and Dunbartonshire

Design and build two-storey extensions in Glasgow and Dunbartonshire: questions

What is the difference between design and build and using an architect?

With an architect, you appoint them for the design and approvals, then find and manage a builder separately. With design and build, one team does both, so cost, buildability and approvals are considered together and there is one point of contact. Some people still prefer to hire an architect separately.

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.

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.

Neighbouring areas

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