421 Front Street is a two-unit condominium on Front Street in Manchester's 03102 area. It is an example of a much smaller urban condominium created within an older residential structure rather than a purpose-built modern development. The property occupies an established neighborhood with convenient access to western Manchester, the Merrimack River corridor and major highways. Its low unit count provides a private, house-like atmosphere.

The building dates to approximately 1930 and has two stories, wood-frame construction, vinyl exterior siding, a granite/stone foundation and an asphalt-shingle roof. Public records identify two condominium units, with residences ranging from approximately 1,250 to 1,400 square feet and two or three bedrooms. One unit has a detached garage, while both benefit from basement space. The architecture therefore retains the scale and proportions of an older Manchester house while operating as a condominium.

Shared amenities are limited and practical. There is no evidence of recreational facilities, clubhouse space or a pool. A historical listing reported a $110 monthly condominium fee, while other property databases have at times shown no current HOA charge, illustrating why the present association budget should be verified. The detached garage, paved driveway and common ownership structure are more significant lifestyle features than formal amenities.

Front Street provides strong automobile access to I-293 and the western Manchester area. Residents can reach downtown Manchester, Arms Park and the Merrimack River relatively easily, while Southern New Hampshire Medical Center, Manchester-Boston Regional Airport and the Mall of New Hampshire are practical regional destinations. The location is particularly suitable for someone who wants an older, house-like condominium with access to Manchester's urban core without living in a large high-rise.