Building services in Barry
House extensions
- Single-storey extensions
- Double-storey extensions
- Side extensions
- Side return extensions
- Wraparound extensions
- Kitchen extensions
- Orangeries
- Glazed and contemporary extensions
- Porches
Loft conversions
- Dormer loft conversions
- Hip-to-gable loft conversions
- Mansard loft conversions
- Rooflight loft conversions
- Bungalow loft conversions
Garage, basement and barn conversions
New build homes
Renovations and structural work
Design and approvals
Guide prices in Barry
| Project | Guide range (inc VAT) |
|---|---|
| Double-storey extensions | £1,500–£2,300 per m² of floor area (both floors) |
| Kitchen extensions | £2,050–£3,150 per m² including a mid-range kitchen |
| Dormer loft conversions | £44,000–£62,500 for a typical rear dormer with en-suite |
| Hip-to-gable loft conversions | £50,500–£72,000 for a hip-to-gable with rear dormer |
| House renovations | £850–£1,650 per m² for a medium to full renovation |
| Structural alterations and knock-throughs | £4,250–£8,750 for a typical knock-through with steel beam |
The guide for Barry reflects typical costs in Wales, roughly 8% below the UK-wide figure.
Planning permission in Barry
In Wales a single-storey rear extension is often permitted development: up to 4 metres beyond the rear wall and up to 4 metres high, with eaves no higher than 3 metres within 2 metres of a boundary and no more than half the land around the original house covered. Wales has no larger home extension prior approval route, so deeper extensions need a planning application, as do extensions to flats, listed buildings and houses whose rights have been removed.
Building regulations in Wales are set by the Welsh Government. Approval comes from the council’s building control service or a registered building control approver, with inspections during the work and a completion certificate at the end.
About building in Barry
Wales has many terraced valley streets, stone cottages and post-war estates, so extension designs are shaped by slopes, materials and local character.
From CF62 outwards, we take on projects throughout Barry and the surrounding parts of South Glamorgan. Barry has a population of around 55,000.
How it works
- 01
Visit and measured survey
A free visit to understand the project, check access and take measurements.
- 02
Drawings and written quote
We prepare the design and give you a written, itemised quote with inclusions and exclusions.
- 03
Permissions sorted
Applications, building control and neighbour arrangements, all before the start date.
- 04
Build and sign-off
We run the build to a written programme and hand over the completion certificate.
Questions from homeowners in Barry
Do I need planning permission for an extension in Barry?
In Wales a single-storey rear extension is often permitted development: up to 4 metres beyond the rear wall and up to 4 metres high, with eaves no higher than 3 metres within 2 metres of a boundary and no more than half the land around the original house covered. Wales has no larger home extension prior approval route, so deeper extensions need a planning application, as do extensions to flats, listed buildings and houses whose rights have been removed.
How much does an extension cost in Barry?
A single-storey extension in Barry typically costs £1,800–£2,650 per m² of floor area, and a double-storey extension £1,500–£2,300 per m² of floor area (both floors), including VAT.
Do you work in Barry?
Yes. We take on extensions, loft conversions, conversions, renovations and new builds across Barry, including postcodes CF62.
How much does a loft conversion cost in Barry?
A rear dormer loft conversion in Barry typically costs £44,000–£62,500 for a typical rear dormer with en-suite, including VAT.
Is the home visit free?
Yes. The first visit to discuss your project and measure up for a quote is free, with no obligation.