One Bromfield, a 59-story tower in Boston’s Downtown Crossing is expected to be one of the five tallest buildings in Boston. New York-based developer Midwood Investment & Development bought the parcels in the mid-2000s and set about with plans to construct a building with about 30,000 square feet of ground-floor retail space, with 300 rental units above and 119 condominium units. Plans for One Bromfield include a rooftop renewable energy installation and a rainwater recycling system to irrigate on-site landscaping. In terms of the facade, high performance argon insulated glass would boast triple silver coating. The punchy cladding and atypical shape of the building would stand out from some of the more rectilinear designs currently populating the neighborhood.