Architecture represented includes the Colonial Revival style and work by Nelson Chaffee.

[1] The Ellington green is largely open space with tall shade trees.

A granite monument on the green identifies the site of the first meetinghouse in Ellington Center, built in 1739.

The district does not include commercial property east of the green, the town hall and its annex, Center School, and several houses within its general boundaries.

[2] Center School, a public elementary school, occupies a brick building constructed in 1949 to replace a structure that was constructed in 1852 as a one-room schoolhouse and later expanded.