The Knightsbridge Apartment by Studio KO

Overlooking the private gardens of Lowndes Square, this three-bedroom Knightsbridge apartment pairs classic London proportions with Studio KO’s restrained modernism. The Paris-based practice, known for the Musée Yves Saint Laurent Marrakech, has reworked this 1,407 sq ft lateral residence into a highly considered home where architecture, materiality and craft take priority.

Lowndes Square: heritage, privacy and position

Lowndes Square remains one of London’s most sought-after garden squares, defined by period facades, a quiet sense of enclosure and the stewardship of the Cadogan Estate. Behind the wrought-iron railings, residents enjoy rare calm in SW1X, with Harrods, Harvey Nichols, Sloane Street and Hyde Park within easy reach.

Set on the third floor of a prestigious portered building, the apartment benefits from uninterrupted west-facing views across the private gardens, anchoring the living spaces to the square throughout the day.

Studio KO’s approach

Studio KO, founded by Karl Fournier and Olivier Marty, is recognised for disciplined detailing, natural materials and spaces that feel warm without relying on ornament. With a client list spanning Hermès, André Balazs and Francis Ford Coppola, the studio’s work often draws on art, history and place.

Here, their approach is architectural rather than decorative: proportion, joinery and texture do the heavy lifting.

Accommodation includes: a reception room, three bedrooms (one currently arranged as a dressing room), two bathrooms, a minimalist kitchen, a guest WC.

Design details and key features

Reception room

The reception room sets the tone with 8.5 ft concrete ceilings and four sash windows framing the garden aspect. A full mirrored wall amplifies light and scale, while a crisp black fireplace holds the centre. Walnut panelling, geometric carpet patterning and velvet seating introduce depth without visual noise. A curved timber screen transitions to the kitchen, accessed via sliding Crittall-style doors.

Principal suite

In the principal bedroom, the palette shifts richer and more intimate. Garden-facing windows pull in soft daylight, while the dressing room is designed for tailored storage and display. The ensuite makes a confident statement through a freestanding tub, cobalt blue tiling and chevron patterning.

Guest areas

The guest bedroom and shower room continue the clean lines and emphasis on material quality. A separate WC mirrors the same attention to detail found throughout the apartment.

A considered balance of old and new

Studio KO’s intervention respects the weight of the address while introducing a modern voice that still feels appropriate for Lowndes Square. Traditional elements are not erased, they are reframed through contemporary form, joinery and restraint. The result is cohesive from entrance hall to private quarters with a clear design narrative rather than a collection of finishes.

Available for sale at a guide price of £4,950,000, this is a Knightsbridge home that offers more than a prime postcode. It offers a design-led interior by an internationally recognised studio, anchored by west-facing garden views and the day-to-day ease of a portered building.