Independent UK planning guide
Downstairs toilet costs in the UK
Add a compact WC with new supplies, waste connection, ventilation, lighting and finished surfaces.
Get site-specific quotesTypical UK range
£3,000–£7,000
Straightforward jobs
From £2,000
Typical site time
1–2 weeks
Build the allowance
How to read this price
Starting allowance
For a straightforward, accessible job with a standard specification.
From £2,000
Typical UK project
An early planning range before a tradesperson inspects the property.
£3,000–£7,000
Likely programme
Site time varies with preparation, sequencing, approvals and drying periods.
1–2 weeks
These figures are early UK planning allowances. They are not a substitute for an itemised quotation after inspection.
Control the variables
What can change the quote?
Pipe and soil-stack alterations
Tiling area and tile format
Waterproofing and subfloor condition
Sanitaryware and brassware specification
Before accepting a quote
Ask for these details in writing
- ✓Labour, materials and VAT
- ✓Preparation and protection
- ✓Access equipment and waste
- ✓Named provisional allowances
- ✓Testing and certification
- ✓Programme and payment stages
- ✓Making good and decoration
- ✓Warranty and snagging process