Gelligaer, South Wales Valleys
Bungalow rear extension in Gelligaer
For homes in Gelligaer, a bungalow rear extension is often the simplest way to gain space without moving. Single-storey rear extensions that keep everything on one level. We take it from survey to completion certificate.
We cover Gelligaer (CF82) as part of our South Wales Valleys work. For Gelligaer bungalows we design the roof first, because the low eaves decide the height of the new room.
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 bungalow rear extension cost in Gelligaer?
In Gelligaer, our guide for a bungalow rear extension is £1,720–£2,790 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 m deep (12 m²) | £20,500–£33,500 |
| 4 m wide × 6 m deep (24 m²) | £41,500–£67,000 |
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 bungalow rear extension in Gelligaer?
Here is how the rules in Wales apply to a bungalow rear extension in Gelligaer.
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.
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 Gelligaer like to extend?
Gelligaer 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 bungalow rear extension in Gelligaer 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.
Paperwork handled
Planning or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
Build and sign-off
We build to the approved drawings with regular updates, then hand over the building control completion certificate and any guarantees from suppliers.
Bungalow rear extensions near Gelligaer
Neighbouring places we cover include Nelson (1.4 miles) and Bargoed (1.6 miles).
- Bungalow rear extension in Nelson
- Bungalow rear extension in Bargoed
- Bungalow rear extension in Blackwood
- Bungalow rear extension in Treharris
- Bungalow rear extension in Abercarn
Other work in Gelligaer:
FAQ
Bungalow rear extension questions in Gelligaer
Is the site visit in Gelligaer free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Will I need a structural engineer?
Yes for the beam over the new opening and usually the foundations; we arrange them and their calculations go to building control.
Will the roof look odd?
Not if the pitch and tiles match. Where the eaves are low, a flat-roofed section with a lantern is an alternative.
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 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 you handle building control in Gelligaer?
Yes. We apply to the council or a registered approver under the Welsh regulations and hand over the completion certificate.