[1] The Swan Larson Three-Decker is located in Worcester's northern Greendale area, on the south side of Summerhill Avenue east of Massachusetts Route 12.

Its front facade is asymmetrical, with a stack of porches on the left and a wide polygonal window bay on the right.

The porches are supported by clustered columns, and topped by a fully pedimented gable with oriel window.

The house was built about 1918, when the Greendale area was being developed as a streetcar suburb for workers at the city's northern factories.

Its first owner, Swan Larson, was a carpenter who lived at 6 Summerhill Avenue, and owned several other triple deckers in the area.