Floral Park, N.Y.-based M&K Enterprises Group has filed applications for a four-story, two-unit residential building at 510 West 159th Street, located on the southern end of Washington Heights. The townhouse will measure 4,998 square feet and will rise on the 17-foot-wide, 1,666-square-foot vacant lot. One apartment will be located on the ground and cellar floors, while the second unit will span the second through fourth floors. Sion Hourizadeh’s Floral Park, N.Y.-based Sion Consulting Engineering is the applicant of record. The site was most recently occupied by a four-story, three-unit structure that was demolished back in 2011.