Rhiwbina, Cardiff and the Vale
Bungalow rear extension in Rhiwbina
For homes in Rhiwbina, 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.
Rhiwbina is covered from our Cardiff and the Vale round, including CF14. For bungalows in Cardiff and the Vale, a rear extension is the usual way to add space without adding stairs.
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 Rhiwbina?
For Rhiwbina we work from the Wales rate: £1,720–£2,790 per square metre of new floor, including VAT, 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 Rhiwbina?
Here is how the rules in Wales apply to a bungalow rear extension in Rhiwbina.
In Wales a single-storey rear extension can often be permitted development if it projects no more than 4 metres beyond the rear wall and is no more than 4 metres high. Wales has no prior approval route for deeper extensions, so anything bigger needs a householder planning application.
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 Rhiwbina like to extend?
Older terraces near the centre and post-war semis further out are typical of Rhiwbina. Sloping sites are common in Wales, so floor levels and retaining walls are designed at the start.
How a bungalow rear extension in Rhiwbina 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.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
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.
Bungalow rear extensions near Rhiwbina
From Rhiwbina, the nearest places we also cover are Whitchurch (1.2 miles) and Caerphilly (3.2 miles).
- Bungalow rear extension in Whitchurch
- Bungalow rear extension in Caerphilly
- Bungalow rear extension in Cardiff
- Bungalow rear extension in Penarth
- Bungalow rear extension in Llantrisant
Other work in Rhiwbina:
FAQ
Bungalow rear extension questions in Rhiwbina
Do you handle building control in Rhiwbina?
Yes. We apply to the council or a registered approver under the Welsh regulations and hand over the completion certificate.
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.
Can a bungalow extension be fully accessible?
Yes: level thresholds, wider doors and a wet room are straightforward to design in.
Is the site visit in Rhiwbina free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Can I live at home while the extension is built?
Usually yes. Most of the work is outside until the back wall is opened near the end, and that stage is screened off.
Can you match the brick or stone on my Rhiwbina house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.