Welcome to the Hartwell Website

About the Properties

Located along Hartwell Avenue in Lexington, one of the most sought-after life science addresses in suburban Boston, King Street Properties has assembled 3 contiguous buildings totaling 185,000 square feet on 20 contiguous acres. 

By connecting the three assets together with a series of pathways and amenities, King Street is able to offer growing companies multiple lab space options within a dynamic campus setting. The spaces range in size from 7,700 RSF to over 80,000 RSF.

The buildings enjoys a prime Lexington location with superior access to I-95/Route 128 and direct access to the Minute Man bike path. 

Corporate neighbors include MIT/Lincoln Labs, Sprint, Spire and Millipore.