- Postcode districts
- CF64
- Nearby
- Cardiff, Barry and Caerphilly
- Guide price
- Included with supply and fit
- Typical time on site
- survey visit plus design
- Water
- Moderately hard across most of South Glamorgan
- Survey
- Free, at your home
What does a new bathroom design cost in Penarth?
Design comes with the job: the survey, layout and itemised quote are free. In Penarth, a complete designed, supplied and fitted bathroom typically costs £6,000–£11,250 including VAT. We adjust the national guide for Wales, where prices are typically about 7% below the UK average. The figure depends on the size of the room, whether anything moves, and the products you pick.
Survey and layout
- Layout options on paper
Detailed design
- Lighting and electrical plan
Full project
- Design, supply and fit
Guide prices for Penarth including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Penarth
In Penarth we cover CF64; we also cover Cardiff, 2.9 miles away, and Barry.
Being a smaller town does not change how we work in Penarth: free survey, written quote, one team. A design survey in Penarth covers drainage, supplies, electrics and ventilation, so nothing on the drawing is guesswork. If your Penarth bathroom has a soil stack in an awkward corner, the design starts there, because it is the one point that is costly to move.
Supplies across most of South Glamorgan are moderately hard. Easy-clean glass and good-quality brassware are money well spent. Hardness varies street by street, so check the figure for your postcode with your water supplier.
What the job includes
- Checks on the soil stack, waste routes, joist direction, water pressure, hot water system and existing electrics
- Elevations and tile layouts on a design, supply and fit project, so the setting-out is agreed before tiling starts
- Layout options drawn to scale, showing the bath or shower, WC, basin, storage and towel rail
- A conversation about who uses the room, when, and what does not work about the current one
Decisions to make first
Where the shower goes
A shower on an outside wall is easier to ventilate; one under a sloping ceiling needs full head height where you stand, not just at the high side.
Tile setting-out
Centring tiles on the window, basin or niche avoids thin slivers at the edges. Large tiles mean fewer joints but need flatter walls.
Rules that apply in Wales
Wales has its own Parts F, H and P. Extract rates are similar to England, but more electrical work is notifiable, so the design should allow for a registered electrician to notify it.

