Merthyr Tydfil · Mid Glamorgan

Kitchen extensions with bedrooms above in Merthyr Tydfil

If you live in Merthyr Tydfil 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.

Quick reference for homeowners in Merthyr Tydfil.

Postcode districts
CF47 and CF48
County / area
Mid Glamorgan, 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
Abercanaid (1.8 miles), Aberdare (3.8 miles), Rhymney (4 miles)
Distance to Rhondda
about 6.9 miles
First visit
Free, no obligation

About a kitchen extension with bedrooms above

A kitchen extension with bedrooms above is a two-storey extension designed so the ground floor becomes a larger, usually open-plan kitchen and dining space, with one or two bedrooms or a bathroom on the first floor. It is a natural fit for a two-storey rear extension. The key design issues are the steel beams that open up the house, glazing and ventilation.

We cover Merthyr Tydfil (CF47 and CF48) and the places around it, including Abercanaid (1.8 miles), Aberdare (3.8 miles) and Rhymney.

What it costs in Merthyr Tydfil

For budgeting in Merthyr Tydfil, allow around £51,500–£69,500 (kitchen units and worktops priced separately) for a kitchen extension with bedrooms above with a 4 m × 3.5 m footprint on two floors (28 m² of new floor space). That's based on £1,840–£2,480 per m² including VAT for Wales. Design fees, structural calculations and approval fees are separate and listed on our prices page.

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 Merthyr Tydfil

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 Merthyr Tydfil homes

Bedrooms over a kitchen

Bedrooms above need an escape window or a protected route to the stairs, plus good sound insulation from the kitchen below. We position the stairs, landing and bedroom doors so the new rooms connect naturally to the existing first floor.

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.

How we'd run your project

  1. Understand the brief

    At your home in Merthyr Tydfil we agree what you need: bedroom count, bathroom, kitchen space, and how much garden you want to keep.

  2. Get it approved

    Once you're happy with the design we submit it to the council for Merthyr Tydfil and deal with any questions from the planning officer.

  3. Detail and price

    Construction drawings, engineer's calculations and building control sign-off, then a written fixed price for the build.

  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 Merthyr Tydfil

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

Our guide for Wales, which covers Merthyr Tydfil, 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.

Which postcodes do you cover around Merthyr Tydfil?

We cover Merthyr Tydfil (CF47 and CF48) and nearby places including Abercanaid, Aberdare and Rhymney, plus the rest of Mid Glamorgan. The first site visit is free.

Who handles building regulations for a project in Merthyr Tydfil?

We handle it as part of the project. What's needed in Wales: building regulations approval under the Welsh Approved Documents, which differ from England's in places (notably energy efficiency). We prepare the drawings and the engineer's calculations, book the inspections and pass you the completion paperwork at the end.

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.

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.

Nearby

The same service in neighbouring towns:

Other extensions in Merthyr Tydfil

All two-storey extension services in Merthyr Tydfil · Kitchen extensions with bedrooms above across Mid Glamorgan

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

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