British Land has completed the first letting at Marble Arch House.
Fulcrum Asset Management is due to occupy the 9,000 sq ft fifth floor of the building.
Fulcrum Asset Management has signed a ten year lease at £78.50 per sq ft, and is due to move into the building over the summer.
The deal comes just a month after British Land launched the building, which comprises 61,200 sq ft of new high quality office space over seven floors, and is located on Seymour Street in the Portman Village.
British Land entered into an agreement with The Portman Estate to purchase and redevelop Marble Arch House in 2011. The scheme, designed by Bennetts Associates Architects, also comprises 15,000 sq ft of retail space and is adjacent to ten luxury residential apartments built behind the retained period Victorian facade of 62-64 Seymour Street.
James Danby, Director of London Leasing at British Land, said: "Signing our first letting to Fulcrum Asset Management is a significant milestone in the development of Marble Arch House. It is evidence of the building’s high quality and its excellent location, within touching distance of Mayfair, attracting a significant occupier from the asset management industry. We anticipate further strong demand for space at the building moving forward."
CBRE and Cushman & Wakefield advised British Land. Gus Coke of PROP AM advised Fulcrum Asset Management.