4201 15TH Street Corner residential infill development opportunity in Core City. The addresses included in sale are: 4201, 4209 and 4217 15th Street. The DLBA is seeking proposals that for small- to medium-scale infill development with the goal of increasing housing supply and restoring the urban fabric, as well as density and walkability. Interested buyers should consult our proposal guidelines for new build opportunities. The DLBA also recommends reviewing relevant Neighborhood Framework Plans from the City of Detroit’s Planning and Development Department for additional context about the neighborhood.