A landmark duplex penthouse at One Palace Green.

This duplex penthouse occupies the third and fourth floors of One Palace Green, the Grade II* listed Arts and Crafts mansion Philip Webb completed in 1870 for George Howard, later ninth Earl of Carlisle. Restored for REDD to designs by Pilbrow & Partners, the building stands behind high gates with concierge service, layered security and gardens landscaped by Randle Siddeley.

From the entrance hall, the formal living room lies to one side, lit by a broad bay window beneath a sloping ceiling of 4.44 metres. Past the powder room and wine store, the principal suite pairs a bedroom with a separate dressing room and a bathroom centred on a freestanding bath. On the other side of the hall, the kitchen, under a sloping 3.66-metre ceiling, adjoins the dining room, whose doors open directly onto the terrace, while a den alongside provides a second sitting room. A utility room completes the floor, and upstairs two further bedrooms each have their own bathroom, alongside a storage room.

Kensington Palace Gardens overlooks Palace Green and Kensington Palace, with Kensington Gardens and Hyde Park beyond. Kensington Church Street offers restaurants, antique shops and established dining destinations, while Kensington High Street provides a broad range of retail options. The Royal Albert Hall, the Victoria and Albert Museum and the Natural History Museum are also within easy reach. High Street Kensington station serves the Circle and District lines, while Notting Hill Gate provides access to the Central, Circle and District lines, including direct connections to Bond Street and Oxford Circus. Knightsbridge and Mayfair are a short drive across the park.