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Circa: 1907

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480 Pleasant Street Watertown, MA

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200,000 ft2


Several mills have existed on the site of the Riverworks Innovation Center beginning around 1760. At that time the mill was owned and operated by David Bemis, originally a paper manufacturer who then moved on to process cotton. It is believed that fabric was made here which became the sails of the USS Constitution.

In 1862 Aetna Mills Company bought the mill and converted it to a woolen textile mill which it remained for some time. Eventually, the mill was converted to office space in the mid-1900s.

More recently, the building served as office headquarters and lab space for Boston Scientific for over 20 years until they moved in the 1990s. Farley White eventually purchased the buildings and converted them to a multi-tenant office building in 2010. Current tenants include: Mimecast, The Alzheimer’s Association, The New England Research Institute, Sabre Hospitality Solutions, and Fresh Tilled Soil among others.


Contact the Property Manager to inquire about available space here.

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As its name suggests, the Riverworks building is located directly on the Charles River, offering river views in many of the spaces and making is an easy walk to the Charles River Walk for employees. The site sits on approximately 11 acres of land and offers ample parking with 3.5 parking spaces per 1000 ft2. It’s easily accessible both from the Mass Pike and via public transit. Recent and planned renovations include creating more usable outdoor space for employees to enjoy as well as the recent addition of a fitness center and cafeteria. Many of the offices feature the original brick and beam architecture and there is a genuine sense of history here with old cotton mills and antique artifacts decorating the common areas. The old clock tower still towers above the main entrance. A new main lobby is currently under construction. The building currently offers room for tenants to grow and is a great space for burgeoning tech companies to reside.