Owner UBS has sold the 0.93 acre One Crown Place site close to Liverpool Street Station which is currently home to old vacant office buildings.
Azmil Khalid, president and CEO of AlloyMtd Group said: “One Crown Place represents an excellent opportunity for AlloyMtd to re-enter the London real estate market.
“We look forward to working with the London Borough of Hackney and the wider London community to deliver an outstanding and sustainable new development in the heart of Central London.”
The site in the London Borough of Hackney has planning consent for around 380,000 sq ft of office, hotel and retail use.
UBS bought the One Crown Place development in 2005 for £45m from Monte Carlo-based developer Tanshore.