The Rehoboth Beach Museum, 511 Rehoboth Ave., announced construction of a second floor expansion of its facilities will begin in January .

“With our plans to nearly double the museum’s usable space, we will be able to expand the museum’s permanent collection offerings, create more innovative special exhibitions, host more special lectures and musical events, have room for a research department and make our facilities available for public and private events and celebrations,” said Museum Director Nancy Alexander.

The museum also announced that to facilitate the second-floor construction, the museum

would be closed through the winter and spring months, with a hoped-for grand reopening of the new two-story facility by early June.

The second floor expansion will add more than 2,000 square feet of usable space to enhance museum operations. A 700-square-foot area for exhibit space and another 700-square-foot “multi-purpose room,” will give the museum flexibility in designing special shows and events and in engaging with the Rehoboth community on the city’s historic past.

A 300-square-foot library will allow the museum to expand its collection of historical materials, a 200-square-foot workroom will be created for use of staff and volunteers alike, and more than 250 square feet will be added for artifact and document storage. The expansion includes finalizing work on an elevator.