Project Details
You don’t always need more space — sometimes you just need to use it differently. For this under-stairs toilet installation in Teddington TW11, we turned an existing storage and utility area into a bright, practical downstairs cloakroom.
The key to making it work was choosing the right fittings. We installed a short-projection toilet with a basin and tap integrated into the top of the cistern. Combining handwashing and flushing in one compact unit meant there was no need for a separate basin, leaving more room to move around.
Project Year: 2026
Renovation Timeline: 8 days
Location: Teddington, TW11
SCOPE OF WORKS: Under-stairs conversion, toilet installation, plumbing, lighting, flooring and decoration
Project Cost: £3,500
What We Did
Preparing the Under-Stairs Area
The space originally housed a washing machine, shelves and household storage. We rearranged the area and prepared it for its new use as a downstairs toilet.
Working beneath a staircase means dealing with sloping ceilings and limited floor space. We planned the layout around these features to make the room practical for everyday use.
Forming the New Toilet Room
We constructed partition walls to create a separate cloakroom within the under-stairs area. The new walls were plastered and prepared for decorating, giving the room a neat finish around the existing staircase.
Installing a Toilet with an Integrated Basin
For this compact room, we fitted a space-saving toilet with a short-projection design and an integrated basin and tap above the cistern.
Having the basin built into the toilet unit makes a real difference in a small cloakroom. It provides somewhere to wash your hands without needing an extra wall-mounted basin or vanity unit.
This dual-function design brings handwashing and flushing together in one unit, making efficient use of the available space.
Plumbing and Drainage
We installed the water supply and connected the toilet to the existing drainage system using a macerator.
The plumbing was arranged around the new layout, with the toilet and integrated basin positioned to make the most of the room.
Lighting and Finishing Touches
A bright ceiling light and freshly painted white walls help the compact room feel light and welcoming. Warm-toned flooring adds contrast, while white skirting boards give the space a tidy finish.
We kept the decoration simple so the room feels uncluttered, even with its small footprint.
Final Outcome
The former storage and utility area is now a useful downstairs WC, complete with a toilet and integrated handwashing basin.
Choosing a combined toilet and basin unit helped us fit both functions into the room without crowding it. Together with the fresh decoration and bright lighting, it’s a practical way to make better use of the space beneath the stairs.
This under-stairs toilet conversion in Teddington TW11 shows what can be achieved with a carefully planned layout and compact fittings.
Watch the Transformation
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