Miami’s Historic and Environmental Preservation Board has approved a proposal by J Cube Development to renovate an existing, aging building at 4141 North Miami Avenue in the Design District and convert the existing structure into modern retail. The renovations of the 15,901 SF structure will be overseen by architect Allan Shulman and will include 2 levels of retail and a rooftop terrace. Remy Jacobson and J Cube Development purchased the building last year for $10.5 million.