[1] The Littleton Main Post Office is located in downtown Littleton, on the north side of Main Street just northwest of Thayer's Hotel, another local architectural landmark.

It is an imposing three-story masonry structure, built out of variegated brick laid in English bond, and trimmed with white marble.

The interior lobby space is equally elaborate, with multicolored tile flooring bordered by gray marble, black marble wainscoting, and a fine mahogany stairway rail with wrought iron balusters.

[3] The building was constructed in 1933 as part of a major Depression-era jobs program, and was designed by the Office of the Supervising Architect for the U.S. Treasury.

The building currently houses the Grafton County 2nd Circuit Court – Littleton District Division, which hears cases on matters pertinent to Littleton, Monroe, Lyman, Lisbon, Franconia, Bethlehem, Sugar Hill, and Easton.