Maesteg · Mid Glamorgan

Extensions over a garage in Maesteg

Thinking about an extension over a garage in Maesteg? We design it, take it through the approvals it needs and build it, with one team responsible from the first visit to the final certificate.

Before you start in Maesteg, here's what applies.

Postcode districts
CF34
County / area
Mid Glamorgan, Wales
Price region
Wales
Guide price
£29,000–£42,000 (£1,610–£2,350 per m²)
Approval route
Can be permitted development in Wales if it is 10.5 m from the side boundary, set back 1 m from the front and doesn't widen the house by more than half; otherwise planning permission.
Nearest towns
Cwmafan (4.5 miles), Aberkenfig (5.5 miles), Pyle (6.6 miles)
Distance to Rhondda
about 9.6 miles
First visit
Free, no obligation

About an extension over a garage

An extension over a garage suits you if you have an attached single garage beside the house and need an extra bedroom or a larger main bedroom with an en-suite. You get an inspection of the garage structure, a design that matches the house, the approvals your nation needs, structural design, building regulations approval and the build, carried out by vetted teams working under S&K.

We cover Maesteg (CF34) and the places around it, including Cwmafan (4.5 miles), Aberkenfig (5.5 miles) and Pyle.

What it costs in Maesteg

Guide prices for extensions over a garage in Wales are around £1,610–£2,350 per m² of new floor space, including VAT. For a typical project with 3 m × 6 m of new first-floor space (18 m²), that's roughly £29,000–£42,000. Design fees, structural calculations and approval fees are separate and listed on our prices page.

SpecPer m²3 m × 6 m of new first-floor space (18 m²)
Essential£1,480–£2,160 per m²£26,500–£39,000
Standard£1,610–£2,350 per m²£29,000–£42,000
Premium£1,930–£2,820 per m²£35,000–£50,500

Planning and building regulations in Maesteg

In Wales, building over a side garage can be permitted development if the result is at least 10.5 m from the boundary opposite the side wall, set back at least 1 m from the front of the house and does not widen the house by more than 50%. Garages close to the boundary usually fail these tests, so a householder application costing £585 is often needed.

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 Maesteg homes

Fire separation

If the garage stays a garage, the floor between it and the room above, and any door into the house, must give fire separation under building regulations. That usually means fire-resisting plasterboard ceilings, sealed gaps and a fire door, which we design in from the start.

Garage walls and the door opening

Garage walls are often a single skin of brick or block with piers, and the wide door opening needs a beam over it. Many over-garage extensions need new inner walls or a steel frame to carry the floor and to insulate properly, which we confirm before the design is fixed.

How we'd run your project

  1. Understand the brief

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

  2. Drawings and permission

    Our designers produce plans and elevations, then we take care of planning or permitted development checks with the council covering Maesteg.

  3. Engineer it

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

  4. Finish and certify

    Second fix, plastering and making good, then building control's final inspection and the completion paperwork.

Questions about extensions over a garage in Maesteg

Who handles building regulations for a project in Maesteg?

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.

Do I need planning permission for an extension over a garage in Maesteg?

Maesteg is in Wales, so Wales planning rules apply. Can be permitted development in Wales if it is 10.5 m from the side boundary, set back 1 m from the front and doesn't widen the house by more than half; otherwise planning permission. If in doubt, a lawful development certificate or a planning application gives you certainty before you build.

Which postcodes do you cover around Maesteg?

We cover Maesteg (CF34) and nearby places including Cwmafan, Aberkenfig and Pyle, plus the rest of Mid Glamorgan. The first site visit is free.

Can I add an en-suite above the garage?

Yes, and it is a common choice for a main bedroom. The en-suite needs an extract fan under Part F, a route for the soil pipe down to the drains and enough fall for the waste, which can be harder over a garage. We plan the pipe route through the garage or an outside wall early.

How do I get into a room over the garage?

Usually through a new opening off the existing landing or a bedroom, so the stairs stay where they are. If the floor levels do not match, a step or two may be needed inside the new room. Where a landing opening is not practical, a new stair from a converted garage is an option.

Nearby

Other towns near Maesteg:

Other extensions in Maesteg

All two-storey extension services in Maesteg · Extensions over a garage across Mid Glamorgan

Ready to talk it through? Call us or send the form and we'll arrange a visit to your home in Maesteg.

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