Furnished Apartments For Rent In Williamsville Ny . As of june 2022, the average apartment rent in williamsville, ny is $990 for a studio, $1,142 for one bedroom, $1,624 for two bedrooms, and $1,821 for three bedrooms. Apartment rent in williamsville has increased by 4.2% in the past year. Apartments in Williamsville NY Drexel Hill Apartments from drexelhillapts.com Williamsville furnished apartments for rent; Furnished apartment rentals in williamsville, ny As of june 2022, the average apartment rent in williamsville, ny is $990 for a studio, $1,142 for one bedroom, $1,624 for two bedrooms, and $1,821 for three bedrooms.