Grangemouth, Forth Valley
Kitchen-diner rear extension in Grangemouth
An open-plan kitchen, dining and family room that opens straight onto the garden. If you live in Grangemouth and want to know what a kitchen-diner rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
We cover Grangemouth (FK3) as part of our Forth Valley work. For Grangemouth kitchens we plan the extraction route and the island drainage before the slab is poured, so nothing has to be chased in later.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
How much does a kitchen-diner rear extension cost in Grangemouth?
Guide prices for a kitchen-diner rear extension in Grangemouth start from our Scotland rate of £1,800–£2,940 per square metre, including VAT. Prices in Scotland sit a little below our West Midlands baseline; building warrant fees and drawings are budgeted separately.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £21,500–£35,500 |
| 4 m wide × 5 m deep (20 m²) | £36,000–£59,000 |
| 4 m wide × 6 m deep (24 m²) | £43,500–£70,500 |
We put a fixed price in writing once the design is agreed, and explain any provisional sums such as foundations.
Do you need planning permission for a kitchen-diner rear extension in Grangemouth?
Here is how the rules in Scotland apply to a kitchen-diner rear extension in Grangemouth.
Scottish householder permitted development (Class 1A) covers many single-storey rear extensions, with a 3 metre eaves limit, a 4 metre height limit and, within 1 metre of a boundary, a depth limit of 3 metres for terraced houses or 4 metres for others. Conservation areas are excluded, and you need a building warrant whatever the planning position.
Scotland has no larger-extension prior approval route; extensions beyond permitted development need a planning application.
Classes 1A and 1B do not apply in conservation areas, and listed buildings need listed building consent. We check your house's planning history and any conservation area before drawing, so the route is clear before you spend on plans.
What are homes in Grangemouth like to extend?
Post-war semis and terraces are common around Grangemouth, and many have room for a single-storey rear extension within Class 1A limits.
How a kitchen-diner rear extension in Grangemouth comes together
Survey visit
We visit free of charge, measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
Paperwork handled
Planning or permitted development, the building warrant, structural design and neighbour agreements are all handled by us.
Written price, then build
Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.
Kitchen-diner rear extensions near Grangemouth
Close by, we work in Falkirk, about 2.5 miles away, and Stenhousemuir, about 3.7 miles away.
- Kitchen-diner rear extension in Falkirk
- Kitchen-diner rear extension in Stenhousemuir
- Kitchen-diner rear extension in Bo'ness
- Kitchen-diner rear extension in Linlithgow
- Kitchen-diner rear extension in Alloa
Other work in Grangemouth:
FAQ
Kitchen-diner rear extension questions in Grangemouth
Do I need a party wall agreement?
Scotland has no Party Wall Act; we agree access and protection with your neighbour in writing instead.
Can I live at home while the extension is built?
Usually yes. Most of the work is outside until the back wall is opened near the end, and that stage is screened off.
How big should a kitchen-diner be?
Around 25 to 35 m² for the combined kitchen, dining and seating areas suits most family homes. Your survey shows what fits the house.
Can you match the brick or stone on my Grangemouth house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Can I get a price without a visit?
Our online guide-price tool gives a range in a couple of minutes. A written price needs a survey.
Is the site visit in Grangemouth free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.