OneThreeSix is a mixed-use development of 24 flats, 4 retail units and 45,000 sq ft of Grade A office space. It was designed by Stiff + Trevillion Architects and developed by Native Land.

OneThreeSix is a mixed-use development of 24 flats, 4 retail units and 45,000 sq ft of offices. The building occupies a whole block on the corner of George Street within The Portman Estate in Marylebone. It is faced with a combination of Limestone, brick and terra cotta, a palette of materials that is sympathetic to the interwar mansion blocks that characterise this section of Edgware Road. Large scale glazing ensures that natural light floods into the office floors.

The project was conceived and planned with wellness in mind, resulting in thoughtful office spaces whose quality and attention to detail is sophisticated and timeless. As office environments can have a profound impact on health and well-being, the staircases, for example, have been designed as a feature and strategically placed to encourage people to use them. This alongside 66 cycle spaces with showers and drying facilities all encouraging building users to make healthy life style choices.

A stunning limestone artwork, 'Grass Forms', at the front entrance is designed by artist Hugo Dalton. It is inspired from drawings made in nearby Hyde Park and brings a level of interest and tactility to the building which completes in Spring of 2021.