Bungalow and upward extensions in Dunbartonshire

Covering Dunbartonshire

Our coverage across Dunbartonshire includes Bearsden, Clydebank, Vale of Leven and Bishopbriggs.

Homes in Dunbartonshire

Housing in Scotland includes tenements in the cities, sandstone villas, inter-war and post-war semis and a large number of bungalows, which often suit dormer and upward extensions.

What is an upward extension?

An upward extension adds a new storey on top of an existing house, most often turning a bungalow into a two-storey or chalet-style home. It can double the floor area without using any of the garden.

New first-floor structure, walls and roof
Staircase and changes to the ground floor layout
Full fit-out of the new rooms

What will an upward extension cost?

Use these ranges to budget for bungalow and upward extensions; the survey turns them into a fixed price for the agreed specification.

Bungalow and upward extensions	Guide price incl. VAT
Chalet conversion with dormers (total)	£45,000 to £85,000
New first floor, standard specification	£2,200 to £2,800 per m²
New first floor, good specification	£2,800 to £3,300 per m²
New first floor, high specification	£3,300 to £3,800 per m²

Planning and building rules in Dunbartonshire

In Scotland the key step is the building warrant, which must be granted before work begins. Planning permission is decided separately by the council, and work on shared walls is handled under your title deeds rather than a party wall act.

Adding a storey in Scotland needs planning permission and a building warrant.

What can change the price or programme?

Some bungalow foundations need strengthening before a storey can be added.
The house is exposed while the roof is off, so the sequence is planned tightly.

What are the steps?

Tell us about the project. Call, use the guide price tool or send the form with a few photos and a postcode.
Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.

Questions about an upward extension in Dunbartonshire

How much does it cost to add a storey?

Around £2,200 to £3,800 per square metre of new floor including VAT, or £45,000 to £85,000 for a chalet conversion with dormers.

Do we need to move out?

Often for part of the job, while the roof is off and the new floor is formed. We plan this with you.

Who deals with the council for a project in Dunbartonshire?

We do. We prepare the drawings, submit planning or permitted development paperwork if needed, and arrange building control inspections.

Also covering

Learn more about bungalow and upward extensions, or see every project we cover in Dunbartonshire.