Llantwit Major, Cardiff and the Vale
Terraced house rear extension in Llantwit Major
We plan and build rear extensions for terraced houses for homeowners in Llantwit Major. Rear and side return extensions for terraces, with access through the house and two neighbours. Start with a free site visit, then a written price once the design is agreed.
Llantwit Major and its postcode districts CF61 are part of our Cardiff and the Vale coverage. In Llantwit Major we plan the delivery route through the house and the skip licence before anything else.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
How much does a terraced house rear extension cost in Llantwit Major?
A terraced house rear extension in Llantwit Major is priced at £1,910–£3,070 per square metre including VAT as a guide, before kitchen fit-out and fees. Prices in Wales sit below our West Midlands baseline; sloping sites are the main variable.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4.5 m deep (13.5 m²) | £25,500–£41,500 |
| 3 m wide × 6 m deep (18 m²) | £34,500–£55,000 |
Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.
Do you need planning permission for a terraced house rear extension in Llantwit Major?
The planning route for a terraced house rear extension in Llantwit Major is set by Wales's householder rules and your council.
The Welsh Government's householder rules let many homes add a single-storey rear extension up to 4 metres deep and 4 metres high without a planning application. Deeper projects go through a householder application, because Wales has no prior approval route.
The Party Wall etc. Act 1996 also applies in Wales: two months' notice for work to a shared wall and one month for foundations dug close to a neighbour's building.
Conservation areas, National Parks and National Landscapes restrict permitted development in Wales, and listed buildings need listed building consent. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in Llantwit Major like to extend?
Older terraces near the centre and post-war semis further out are typical of Llantwit Major. Sloping sites are common in Wales, so floor levels and retaining walls are designed at the start.
How a terraced house rear extension in Llantwit Major comes together
Look round and measure
A free visit to see the back of the house, measure it, check the drains and boundaries and hear what you need.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for building control.
Written price, then build
Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.
Terraced house rear extensions near Llantwit Major
We also build rear extensions for terraced houses in nearby Bridgend (7.6 miles) and Coity (8.2 miles).
- Terraced house rear extension in Bridgend
- Terraced house rear extension in Coity
- Terraced house rear extension in Barry
- Terraced house rear extension in Aberkenfig
- Terraced house rear extension in Llantrisant
Other work in Llantwit Major:
FAQ
Terraced house rear extension questions in Llantwit Major
Can you match the brick or stone on my Llantwit Major house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Do I need a party wall agreement?
In Wales, usually yes if the extension is on or near a shared boundary or close to a neighbour's foundations. We serve the notices.
How do you keep the house clean?
Dust screens, floor protection and a single protected route through the house.
Can I get a price without a visit?
Our online guide-price tool gives a range in a couple of minutes. A written price needs a survey.
Do I need planning permission for a rear extension in Llantwit Major?
Often not for a single-storey rear extension of up to 4 metres under Welsh permitted development. Wales has no prior approval route for deeper extensions.
Who will build my extension?
Vetted building teams working under contract to us. Your contract is with S&K Property Investments and Improvement Ltd for the design and the build.