Stevenston · Ayrshire

Two-storey wraparound extensions in Stevenston

For a two-storey wraparound extension in Stevenston, the first questions are always the same: how big, which approvals, and what it will cost. This page answers all three for Ayrshire.

Stevenston: the key facts for this kind of project.

Postcode districts
KA20
County / area
Ayrshire, Scotland
Price region
Scotland
Guide price
£113,000–£155,500 (£2,020–£2,770 per m²)
Approval route
Planning permission is usually needed: Class 1B permitted development only applies if every part of the extension is at least 10 m from all boundaries. A building warrant is needed before work starts.
Nearest towns
Saltcoats (1.3 miles), Kilwinning (2.1 miles), Ardrossan (2.2 miles)
Distance to Kilmarnock
about 10.2 miles
First visit
Free, no obligation

About a two-storey wraparound extension

A two-storey wraparound extension suits a house with space both beside it and behind it, where you want to transform the layout rather than add a single room. You get one design for the whole L-shape, the planning application, structural design for the corner and the openings into the house, a building warrant and the build, managed by us and carried out by vetted teams working under S&K.

Stevenston sits about 10.2 miles from Kilmarnock. Closer to home, Saltcoats is 1.3 miles away and Kilwinning 2.1 miles.

What it costs in Stevenston

In Scotland, which includes Stevenston, we'd expect a two-storey wraparound extension to cost around £113,000–£155,500 for an L-shaped footprint of about 28 m² wrapping the side and rear, on two floors (56 m² of new floor space), or £2,020–£2,770 per m² including VAT. Steelwork for wide openings is the item most likely to move the figure; we'll know once the engineer has designed it.

SpecPer m²An L-shaped footprint of about 28 m² wrapping the side and rear, on two floors (56 m² of new floor space)
Essential£1,860–£2,550 per m²£104,000–£143,000
Standard£2,020–£2,770 per m²£113,000–£155,500
Premium£2,430–£3,330 per m²£136,000–£186,500

Planning and building standards in Stevenston

In Scotland, a two-storey wraparound would need to be at least 10 m from every boundary to be permitted development under Class 1B, and not on an elevation fronting a road. That is rarely possible, so plan for a householder planning application, which costs £371 and is decided within two months, followed by a building warrant before work starts.

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.

Design points for Stevenston homes

Phasing the build

A wraparound touches two sides of the house at once, so the kitchen and often the rear rooms are out of use for part of the build. We plan the sequence so you keep a working kitchen and bathroom for as long as possible, or advise when moving out briefly makes sense.

The corner post

At the outside corner of the L, there is no existing wall to carry the floor above. Opening the ground floor fully usually means a steel frame or a corner post, and the engineer's design sets how slim it can be. We decide early whether you want a clear corner or a visible post.

How we'd run your project

  1. Visit and first ideas

    One of our team visits your house in Stevenston, checks the walls, roof and drains, and sketches out options with you.

  2. Plans, then approval

    Measured survey, design, then the right approval route for your house. We explain each step before we take it.

  3. Engineer it

    Foundations sized for two floors, steels for any openings, and a building warrant, all before anyone starts on site.

  4. On site

    One project lead runs the job, keeps you updated and arranges inspections at each stage until completion.

Questions about two-storey wraparound extensions in Stevenston

How much does a two-storey wraparound extension cost in Stevenston?

Our guide for Scotland, which covers Stevenston, is £2,020–£2,770 per m² including VAT. A typical project with an L-shaped footprint of about 28 m² wrapping the side and rear, on two floors (56 m² of new floor space) comes to about £113,000–£155,500. Design and approval fees are extra, and we fix the build price in writing once the design is agreed.

Do I need planning permission for a two-storey wraparound extension in Stevenston?

Stevenston is in Scotland. Planning permission is usually needed: Class 1B permitted development only applies if every part of the extension is at least 10 m from all boundaries. A building warrant is needed before work starts.

Who handles building standards for a project in Stevenston?

We handle it as part of the project. What's needed in Scotland: 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. We prepare the drawings and the engineer's calculations, book the inspections and pass you the completion paperwork at the end.

How much floor space does a wraparound extension add?

It depends on the width of the side plot and the depth at the rear. Our guide prices are based on a typical wraparound with an L-shaped footprint of about 28 m² wrapping the side and rear, on two floors (56 m² of new floor space). Yours may be larger or smaller, and the measured survey shows what your plot can take.

Can I stay at home during a wraparound extension?

Many people do, but a wraparound affects two sides of the house and usually the kitchen, so there will be weeks without a full kitchen. We plan a temporary kitchen, keep a route through the house and seal off the work area. For some families, moving out while the rear wall is opened up is easier.

Nearby

Nearby towns we cover for two-storey wraparound extensions:

Other extensions in Stevenston

All two-storey extension services in Stevenston · Two-storey wraparound extensions across Ayrshire

The quickest next step is a visit. We'll look at your house in Stevenston and give you an honest view of the options.

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