Eden Properties is proposing a new retail branch of the U.S. Post Office at 25-39 Harvard Ave. as part of its larger, six-story project dubbed “Allston Post.” The vision touts the potential for a 144,000-square-foot apartment building and about 5,000 square feet of ground floor retail and restaurant space.

“The Project will transform over an acre of vacant and underutilized parcels currently containing surface parking lots and vacant, one-story, commercial and industrial buildings, which have historically been operated for auto-dependent uses, into a new, primarily residential building that will bring new housing opportunities to help address the housing supply shortage facing the City of Boston, including affordable housing units,” the developer wrote in the plans filed with the BPDA.