Covering Kilwinning
We work in Kilwinning (KA13) and the places around it, including Irvine, Troon and Kilmarnock.
Homes in Ayrshire
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.
- Building warrant application and completion certificate
- Structural survey of walls and foundations
- Full fit-out of the new rooms
How much does an upward extension cost in Kilwinning?
What bungalow and upward extensions typically cost. These are guide ranges; the written quote for your house replaces them.
| 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 |
How is an upward extension approved in Kilwinning?
Scottish projects follow a different process from England: the council issues a building warrant before work starts and accepts a completion certificate at the end, alongside any planning permission needed. We prepare both applications.
Adding a storey in Scotland needs planning permission and a building warrant.
What should Kilwinning homeowners check first?
- 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.
From first call to completion
- Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
- Free site visit. We measure up, look at access, drains and the structure, and talk through options and budget.
- Design and fixed price. You get drawings and a written price for the agreed specification before anything is ordered.
- Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.
Bungalow and upward extensions: common questions
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.
How long does it take?
About 12 to 24 weeks on site.
Do you work in Kilwinning?
Yes. Kilwinning is within our coverage for bungalow and upward extensions, along with nearby Irvine and Troon.
Other towns nearby
- Bungalow and upward extensions in Irvine
- Bungalow and upward extensions in Troon
- Bungalow and upward extensions in Kilmarnock
- Bungalow and upward extensions in Largs
Learn more about bungalow and upward extensions, or see every project we cover in Kilwinning.

