The downstairs toilet is often the smallest room in a home but attracts significant attention from guests, making its design and functionality an important consideration. Interior designer Christian Bense, director of his eponymous studio, advises prioritizing practical features alongside aesthetic choices to create a space that is both personable and functional.

Bense emphasizes the importance of sufficient lighting and an adequately sized mirror to allow users to check their appearance comfortably. He also notes the value of maximizing available surface area by incorporating hooks for bags and shelves for toiletries. Above all, Bense stresses ensuring essentials such as toilet paper are readily accessible to avoid awkward situations for visitors.

When it comes to color, specialists suggest the downstairs loo offers a prime opportunity to experiment with bold shades that might feel overwhelming in larger rooms. Kathryn Lloyd, a color expert at Crown Paints, highlights the room’s compact nature as an advantage, requiring only modest effort to make a distinctive statement. She recommends deep, dramatic hues like Crown’s Rebel—a rich black shade—to produce a sophisticated, cohesive appearance when applied uniformly to walls and woodwork. For those less inclined toward dark tones, options such as Benjamin Moore’s royal blue Watertown 818 or Carter Plum, with its sultry and intimate vibe, provide alternatives suited to high-moisture environments.

In addition to paint, wallpaper and wall murals can deliver a strong visual impact with relatively little investment. Products such as Laura Ashley’s Elmbridge mural or Graham & Brown’s bespoke designs, including their Crane “The Renaissance of Venus” and Truffle peacock wallpaper, offer varied color schemes and artistic flair.

Beyond decoration, the choice of fixtures dramatically affects the overall guest experience. Luxurious wall-hung toilets like the Callipype by Trone are available in several colors and priced from £1,112.50 excluding VAT. For high-end technology, Trone’s Altesse smart toilet, from £3,250 excluding VAT, includes features such as jets, drying modes, night lighting, and memory functions. Vitra’s V-Care 3 Prime smart toilet, priced from £1,950, incorporates functions controlled via a smartphone app, including heated seats and customizable water temperature.

Sink design is equally critical, combining practicality with style. Tom Dixon’s Liquid collection for Vitra offers sculptural brassware and functional features such as fluted glass doors and internal shelving, while more budget-friendly options like Ikea’s Bergvattnet tap in various colors provide accessible style. Experts also recommend wall-mounted fixtures to save floor space and maintain a clean, uncluttered look.

Mike Manders, cofounder and CEO of bathroom brand Haddon, stresses the importance of simple, streamlined fittings that preserve a spacious feel. He advises selecting vanity units with adequate storage to keep essentials organized and out of sight, minimizing clutter in small rooms.

In summary, careful attention to lighting, color, fixture selection, and storage can transform a downstairs toilet from a purely functional space into an inviting environment that leaves a positive impression on guests.