591-593 Willis Avenue New to the market is a 1, 300 square foot prime corner retail space located on Willis Avenue in Williston Park between Hillside Avenue and the Long Island Expressway. It is located on the corner of a busy high-end retail strip in North Hempstead. This space contains front and rear glass door entrances and an elegant glass fa?ade on the front and side. It is an existing ice cream parlor. The shopping center it resides in includes a 20-car parking lot in the rear of the building as well as front street parking. Metered for utilities and cooling/heating with a separate meter independently connected to the tenant.