Llangefni · Gwynedd and Anglesey

Kitchen extensions with bedrooms above in Llangefni

If you live in Llangefni and need more room without moving, a kitchen extension with bedrooms above is worth a serious look. We handle the drawings, approvals, structure and build.

Llangefni: the key facts for this kind of project.

Postcode districts
LL60, LL62, LL63, LL71, LL73, LL74 and nearby districts
County / area
Gwynedd and Anglesey, Wales
Price region
Wales
Guide price
£51,500–£69,500 (£1,840–£2,480 per m²), kitchen units and worktops priced separately
Approval route
It may be permitted development if the ground floor goes no more than 4 m and the first floor no more than 3 m beyond the original rear wall, with the first floor 10.5 m from the rear boundary.
Nearest towns
Menai Bridge (6.2 miles), Bangor (Gwynedd and Anglesey) (7.7 miles), Caernarfon (8.1 miles)
Distance to Bangor (Gwynedd and Anglesey)
about 7.7 miles
First visit
Free, no obligation

About a kitchen extension with bedrooms above

This service suits you if your kitchen is too small and you also need another bedroom. Building both floors at once costs less than a single-storey kitchen extension now and a first floor later. You get a layout that works for cooking, eating and the garden, a bedroom plan that works upstairs, the approvals your nation needs and the build, carried out by vetted teams working under S&K. Kitchen units are priced separately.

Around Llangefni we also work in Menai Bridge, Bangor (Gwynedd and Anglesey) and Caernarfon, and across the rest of Gwynedd and Anglesey. Postcode districts in and near Llangefni: LL60, LL62, LL63, LL71, LL73, LL74 and nearby districts.

What it costs in Llangefni

Most of the cost of a kitchen extension with bedrooms above is set by its size and specification. For Llangefni and the rest of Wales, our guide is £1,840–£2,480 per m² including VAT, so about £51,500–£69,500 (kitchen units and worktops priced separately) for a 4 m × 3.5 m footprint on two floors (28 m² of new floor space). We'll give you a written design-stage price first, then a fixed build price once the drawings are agreed.

SpecPer m²A 4 m × 3.5 m footprint on two floors (28 m² of new floor space)
Essential£1,690–£2,290 per m²£47,500–£64,000
Standard£1,840–£2,480 per m²£51,500–£69,500
Premium£2,210–£2,980 per m²£62,000–£83,500

Planning and building regulations in Llangefni

In Wales, a kitchen extension with bedrooms above can be permitted development if the kitchen goes no more than 4 m and the first floor no more than 3 m beyond the original rear wall, with the first floor 10.5 m from the rear boundary. This lets the kitchen project further than the bedrooms. Otherwise a householder application costs £585.

Approval in Wales: Householder planning application: £585. Councils normally decide householder applications within 8 weeks.

Building regulations: Building regulations approval under the Welsh Approved Documents, which differ from England's in places (notably energy efficiency).

Design points for Llangefni homes

Services and drainage

Sinks, dishwashers and an upstairs bathroom all need waste routes to the drains, often near where the extension goes. We check the drains early and plan soil stacks, gas and electrical supplies so the kitchen layout is not limited later.

Steel beams and the open-plan opening

Removing the old rear wall to make one large room means a steel beam, sometimes several, to carry the first floor and roof. The engineer sizes the steel and its supports, and we decide early whether you want a flush ceiling with the beam hidden or a downstand, as this affects ceiling heights.

How we'd run your project

  1. Free site visit

    We visit your home in Llangefni, look at the structure, access and boundaries, and talk through what you want the new rooms to do.

  2. Drawings, then consent

    We draw the scheme, check it against the rules in Wales, and take it through the right consent with the council.

  3. Fixed price in writing

    With approved drawings and calculations, we give you a fixed build price and a programme you can plan around.

  4. Build and sign-off

    Vetted teams working under S&K build the extension, and we arrange the building control completion certificate at the end.

Questions about kitchen extensions with bedrooms above in Llangefni

How much does a kitchen extension with bedrooms above cost in Llangefni?

Our guide for Wales, which covers Llangefni, is £1,840–£2,480 per m² including VAT. A typical project with a 4 m × 3.5 m footprint on two floors (28 m² of new floor space) comes to about £51,500–£69,500 (kitchen units and worktops priced separately). 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 kitchen extension with bedrooms above in Llangefni?

Llangefni is in Wales, so Wales planning rules apply. It may be permitted development if the ground floor goes no more than 4 m and the first floor no more than 3 m beyond the original rear wall, with the first floor 10.5 m from the rear boundary. If in doubt, a lawful development certificate or a planning application gives you certainty before you build.

How long does a kitchen extension with bedrooms above take?

Allow 4 to 8 weeks for survey and design, then the approval period (councils normally decide householder applications within 8 weeks), then 4 to 8 weeks of technical design, which can overlap. The build itself usually takes 14 to 20 weeks, longer for large or complex designs.

Can I keep using my kitchen during the build?

For part of it. The new structure can be built while your existing kitchen stays in use, but when the rear wall is opened and the new kitchen is fitted there will be several weeks without one. We plan when this happens and help you set up a temporary kitchen elsewhere in the house.

Can the kitchen be bigger than the bedrooms above it?

Yes. With planning permission, the ground floor can extend further than the first floor, giving a part single, part two-storey design. In Wales, permitted development allows the ground floor to go 4 m and the first floor 3 m beyond the original rear wall. We show both options at the design stage.

Nearby

The same service in neighbouring towns:

Other extensions in Llangefni

All two-storey extension services in Llangefni · Kitchen extensions with bedrooms above across Gwynedd and Anglesey

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