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An Ashland apartment complex is due for a series of energy efficiency upgrades as Boston-based Taurus Investment Holdings’ RENU subsidiary expands its portfolio.

Chesnut Place is a 40-year-old class B apartment complex containing 207 units at 13 Joanne Drive. The seller was Aldwin Partners of Framingham, according to a Middlesex County Registry of Deeds filing.

The acquisition is the third by Taurus’ RENU subsidiary, which focuses on older commercial and multifamily properties that can benefit from building upgrades to improve energy efficiency. The plan for the property includes replacement of gas-powered boilers with electric heat pumps, installation of high-efficiency mechanical equipment and installation of an on-site solar array, the company announced.

Taurus established RENU in 2019 to assess potential acquisitions which have potential for improved energy efficiency. RENU previously acquired 300 Baker Ave., a 410,000-square-foot office building in Concord, and South Winds, a 404-unit apartment complex in Fall River, and has begun replacement of the HVAC system and installation of a solar array.

In a statement, RENU Chief Technology Officer Chris Gray said the upgrades to the Ashland property could reduce nearly 300 tons of carbon emissions annually.

Taurus owns more than 6,000 multifamily units nationwide.