The addition doubled the size of the building, which now occupies an entire city block.

A 1937 addition nearly doubled the size of the building.

The addition of the French colonists nearly doubled the population.

In the 1950s, a six-story addition to the hospital doubled its size.

A further addition doubled the size of the annex and added a third story.

The additions more than doubled the size of the house.

These additions more than doubled the original size of the high school.

The addition of the garden has more than doubled the interest in house and the Marshall family history.

These additions more than doubled the size of the zoo.

That addition, expected to be completed in 1991, would double the prison's capacity to 700 inmates.