The Welles-Shipman-Ward property features a 1755 River Valley Mansion built for John and Jerusha Welles after their marriage. The house has been preserved in its original colonial style and has one of the largest colonial era hearth fireplaces in Connecticut.
The outbuildings on the property include a four-story colonial-era New England bank barn, a 19th century tobacco shed and an 18th century privy which originally served the patrons of the Moseley Tavern in Glastonbury.