St Margaret'S House

St Margaret's House is a group of offices, showrooms, and a studio built in the late 1920s and early 1930s, specifically between 1929 and 1931. The building was designed by Sir Albert Richardson and Claude Lovat Gill for Sanderson's Wallpapers. It is constructed with a steel frame clad in 2-inch white bricks, with the rear façade finished in white faience bricks. The curved copper roof of the studio has been altered with later dormer windows, and features white brick lateral stacks.

The building is in a stripped classical style, standing six storeys high with the top floor set back. It has seven bays. The ground floor includes later 20th-century windows positioned between canted columns faced with granite, supporting a plain fascia. The left-hand bay provides a vehicle entrance to Wells Mews. A screen composed of white brick pilaster strips rises from the first to the third floor, defining the window bays with gauged brick flat arches. The brick architrave and frieze area is topped by an enriched cornice. The first to third floors feature metal framed casement windows with glazing bars, designed as recessed vertical strips with fluted spandrel panels; the third-floor casements feature coved outer lights. Window strips are separated from the brickwork by narrow bands of black Belgian marble. The fourth floor is set back, with similarly detailed metal framed windows with glazing bars and a slightly darker brick architrave and frieze, as well as a coved cornice.

The rear facade is of considerable interest, continuing the stripped classical style in white faience brick across six flush storeys, with black faience bands separating metal framed casements from the brickwork on the first to third floors. Gauged brick heads are present above the windows. To the right, under the vehicle entrance, a staircase is defined by five storeys of windows with slanted sills and curved heads, with gauged brickwork gradually fading into the curved angle of the building’s brickwork. One bay above the vehicle entrance has a curved pediment mirroring the stair windows, and incorporates a lunette.

Originally intended for Sanderson's Wallpapers, who already owned a large building to the rear, the project was revised to create offices and showrooms for fashionable tenants. The ground floor was initially clad in “Verte Mousse” marble with thin red edgings to the windows. The building received the RIBA 1931 London Architecture Medal, commemorated by a plaque under the carriage entrance. The rear facade, facing into the mews yard, incorporates the buildings at numbers 24 and 25 Wells Mews.