Hays House Museum 324 Kenmore Ave, Bel Air, MD21014 Located in the heart of downtown Bel Air, Hays House Museum was the home of a wealthy family from approximately…More 1788-1825. The house retains much of its early architecture and original materials. Special events are conducted at the Hays House Museum throughout the year, such as the annual Ice Cream Social, Children's Fun Day and house concerts. Reserve tickets in advance if you wish to attend the Christmas Tea and Concert. Private events can be scheduled through special arrangement.