It will also be a home for temporary exhibitions and the occasional performance.
Nor did it have education facilities or space for temporary exhibitions.
The modest, low-lying new building provides space for temporary exhibitions, concerts and education programmes.
Originally a venue for temporary exhibitions, the museum began to collect in 1985.
Most of that is set aside for temporary exhibitions, which typically draw the largest crowds.
The site of the old castle was used for temporary exhibitions.
Mr. Hartford's permanent collection is on the 5th & 4th floors; the 2nd & 3rd floors will be for temporary exhibitions.
Now, there are seven galleries, totaling 7,600 square feet, for the permanent collection, and three for temporary exhibitions.
At the top of the gallery wing, on the sixth floor, are grand, loftlike galleries for temporary exhibitions.
The third phase involves restoring the museum's south court and reworking its north court for temporary exhibitions.
Although the museum has already had four additions, its space for temporary exhibitions is awkward, said Michael Brand, its director.
