Building services in Merthyr Tydfil
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 Merthyr Tydfil
| Project | Guide range (inc VAT) |
|---|---|
| Double-storey extensions | £1,500–£2,300 per m² of floor area (both floors) |
| 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 |
| Garage conversions | £16,500–£27,500 for a single integral garage |
| House renovations | £850–£1,650 per m² for a medium to full renovation |
| Orangeries | £2,200–£3,150 per m² of floor area |
The guide for Merthyr Tydfil reflects typical costs in Wales, roughly 8% below the UK-wide figure.
Planning permission in Merthyr Tydfil
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 Merthyr Tydfil
Wales has many terraced valley streets, stone cottages and post-war estates, so extension designs are shaped by slopes, materials and local character.
If your home is in Merthyr Tydfil or close by in Aberdare, Rhondda and Ebbw Vale, a free home visit is the first step. Merthyr Tydfil has a population of around 44,000.
How it works
- 01
Free visit
We look at the property, talk through what you want and measure up. There is no charge and no obligation.
- 02
Design and pricing
Design options, then a fixed quote based on the chosen drawings and specification.
- 03
Approvals in place
We handle planning, building control and neighbour notices before work starts.
- 04
Build and sign-off
We run the build to a written programme and hand over the completion certificate.
Questions from homeowners in Merthyr Tydfil
Is the home visit free?
Yes. The first visit to discuss your project and measure up for a quote is free, with no obligation.
How much does a loft conversion cost in Merthyr Tydfil?
A rear dormer loft conversion in Merthyr Tydfil typically costs £44,000–£62,500 for a typical rear dormer with en-suite, including VAT.
Do you work in Merthyr Tydfil?
Yes. We take on extensions, loft conversions, conversions, renovations and new builds across Merthyr Tydfil, including postcodes CF47.
Do I need planning permission for an extension in Merthyr Tydfil?
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 Merthyr Tydfil?
A single-storey extension in Merthyr Tydfil 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.