Several sub-let Suites available within the offices of B3H Plus Wellness Center. This is a Class A building (450 Mamaroneck Avenue). Offices available to sub-let will enjoy full services-including utilities, internet service, shared conference room, access to kitchenette and all the amenities of a Class A building, such as convenient parking and cafeteria. Availabilities. Call for Pricing. 1- Windowed Office: 126 sf 2- Window office with sink and independent entrance: 240 sf 3- Interior Office: 11x10”