Philadelphia's Parkway Corp. has acquired an interest in a 1.5-acre parking lot on the northwest corner of Broad and Spring Garden Streets, where it plans a complex of shops, homes and offices, Parkway president Robert Zuritsky said Thursday.

Parkway plans to partner on the project with Nightingale Properties, with which it shares ownership of the site that covers all but a sliver of the block bounded by Broad and 15th Streets, between Brandywine and Spring Garden Streets, Zuritsky said in an interview. 
The partners are contemplating a dense, mixed-use development at the site, but are in the beginning stages of refining their plan, Zuritsky said.