Rear extension design, approvals and build across the UKCall 0800 088 6341 · Online guide price
Rear Extensionsrear-extensions.co.uk 0800 088 6341 Get a guide price

Kirkcaldy, Fife

Semi-detached rear extension in Kirkcaldy

Semi-detached rear extension in Kirkcaldy: single or two-storey extensions for semi-detached houses, with side access and one party wall. We measure the house, show you what the rules allow, price it in writing and build it.

Kirkcaldy is covered from our Fife round, including KY1 and KY2. Semi-detached houses are common across Fife, and their side access makes rear extensions quicker to build.

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 semi-detached rear extension cost in Kirkcaldy?

A semi-detached rear extension in Kirkcaldy is priced at £1,800–£2,940 per square metre including VAT as a guide, before kitchen fit-out and fees. Prices in Scotland sit a little below our West Midlands baseline; building warrant fees and drawings are budgeted separately.

Semi-detached rear extension prices in Kirkcaldy
SizeGuide 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

Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.

Do you need planning permission for a semi-detached rear extension in Kirkcaldy?

The planning route for a semi-detached rear extension in Kirkcaldy is set by Scotland's householder rules and your council.

In Scotland a single-storey rear extension can be permitted development under Class 1A: eaves no higher than 3 metres and an overall height of 4 metres, and where any part is within 1 metre of a boundary it can project no more than 3 metres on a terraced house or 4 metres on other houses. The rights do not apply in conservation areas, and a building warrant is still needed before work starts.

In Scotland an extension of more than one storey is only permitted development (Class 1B) if no part is within 10 metres of any boundary and it is no higher than the existing house, so almost every two-storey rear extension needs planning permission and a building warrant.

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. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.

What are homes in Kirkcaldy like to extend?

Post-war semis and terraces are common around Kirkcaldy, and many have room for a single-storey rear extension within Class 1A limits.

How a semi-detached rear extension in Kirkcaldy comes together

  1. Free site visit

    We measure the house and garden, look at the back wall, drainage and boundaries, and talk through what you want from the space.

  2. Design and guide price

    Two or three layout options with a guide price for each, so you choose the design knowing what it costs.

  3. Paperwork handled

    Planning or permitted development, the building warrant, structural design and neighbour agreements are all handled by us.

  4. Fixed price and build

    A written price for the agreed design, a start date and a named contact through the build, ending with the accepted completion certificate.

Semi-detached rear extensions near Kirkcaldy

From Kirkcaldy, the nearest places we also cover are Glenrothes (5.4 miles) and Cowdenbeath (7.1 miles).

Other work in Kirkcaldy:

All rear extensions in Kirkcaldy

FAQ

Semi-detached rear extension questions in Kirkcaldy

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.

Do I need planning permission for a rear extension in Kirkcaldy?

Many single-storey rear extensions are permitted development under Class 1A, but not in conservation areas; you always need a building warrant before work starts.

What if my neighbour has already extended?

That can make a matching depth easier to justify. We measure theirs at the survey.

What postcode areas do you cover around Kirkcaldy?

Including KY1 and KY2, and the surrounding Fife area.

Will I need a structural engineer?

Yes for the beam over the new opening and usually the foundations; we arrange them and their calculations go to building control.

Is the site visit in Kirkcaldy free?

Yes. We visit, measure up and talk through the options with no cost and no obligation.

Next step

See what your rear extension would cost

Get a guide price online in a couple of minutes, or book a free site visit and we'll measure up and talk you through the planning route.

CallGuide price