Bargoed, South Wales Valleys
Terraced house rear extension in Bargoed
Rear and side return extensions for terraces, with access through the house and two neighbours. If you live in Bargoed and want to know what a terraced house rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
Bargoed is covered from our South Wales Valleys round, including CF81. Terraced streets make up much of the housing in parts of the South Wales Valleys, and most rear extensions here go in without side access.
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 Bargoed?
In Bargoed, our guide for a terraced house rear extension is £1,910–£3,070 per square metre including VAT for a standard specification. 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 |
Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.
Do you need planning permission for a terraced house rear extension in Bargoed?
The planning route for a terraced house rear extension in Bargoed is set by Wales's householder rules and your council.
Welsh permitted development allows a single-storey rear extension of up to 4 metres in depth and 4 metres in height, subject to boundary and garden-coverage limits. There is no larger-extension prior approval scheme in Wales.
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. At the first visit we measure what is there now and tell you which route fits: permitted development or a householder planning application.
What are homes in Bargoed like to extend?
Bargoed is largely terraced streets on sloping ground, where back gardens step up or down from the house. Excavation, retaining walls and drainage are priced at the survey.
How a terraced house rear extension in Bargoed 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.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for building control.
Fixed price and build
A written price for the agreed design, a start date and a named contact through the build, ending with the building control completion certificate.
Terraced house rear extensions near Bargoed
Close by, we work in Blackwood, about 1.5 miles away, and Gelligaer, about 1.6 miles away.
- Terraced house rear extension in Blackwood
- Terraced house rear extension in Gelligaer
- Terraced house rear extension in Nelson
- Terraced house rear extension in Treharris
- Terraced house rear extension in Abercarn
Other work in Bargoed:
FAQ
Terraced house rear extension questions in Bargoed
Do I need planning permission for a rear extension in Bargoed?
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.
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.
Do both neighbours need party wall notices?
Usually yes in England and Wales, because the extension often sits on or near both boundaries.
What postcode areas do you cover around Bargoed?
Including CF81, and the surrounding South Wales Valleys area.
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.
Can you match the brick or stone on my Bargoed house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.