The new gallery is expected to open at the end of 1997.
Over the last month, 325,000 visitors have come through the new galleries.
The new gallery is in the former dining room of No. 12.
It will provide some 39 new galleries and 100% more display space than the former building.
The new galleries on level 4 will have natural top lighting.
The new galleries are, however, slightly smaller than the old ones.
Meanwhile, the new galleries, however limited they may seem, are much better than nothing.
A new gallery around the church was also built to protect the wall tables.
The new galleries make you feel as though every work in the building had just been cleaned.
In 2010 the museum announced that it is building new galleries at a cost of $5 million.