High Street in Medford Square is a four story, 30,000 square foot, bearing brick building built around 130 years ago. 24-30 High Street is a four story, 30,000 square foot brick building with frontage on busy High Street and whose rear yard is the Mystic River, in downtown Medford. Through the years the building had undergone numerous changes in use with little attention paid to the structural or envelope integrity. Where the building previously served as retail, office, and even Masonic Temple spaces, this project converted the building into 12 residential condominium units on the upper floors and three commercial units on the street level. The renovation process has seen nearly every building component except the masonry exterior and wood roof frame removed, improved and replaced. In doing so, the foundations were stabilized and reinforced, exterior walls pointed and repaired, and all units were equipped with the energy efficient systems and sustainable materials selections requisite of the LEED GOLD and Energy Star tier 2 certifications currently being sought. The facade received new historic styled storefronts and new window openings, doors and balconies were introduced to the rear of the building opening onto the Mystic River that until now had gone unnoticed. The units of the Mystic Green Condominiums provide ecologically and environmentally conscious adaptable luxury living opportunities in the heart of downtown Medford and within minutes to Boston.