Capitol Extension, located on the north side of the Capitol, is
a four-level underground structure which was completed in 1993.
It was built to provide the Capitol with much-needed additional
space without detracting from its appearance and historical importance.
It is connected to the Capitol by three pedestrian tunnels.
out of solid rock, the 65-foot-deep site provides the Capitol with
four floors and approximately 667,000 gross square feet of new space.
The Extension includes state government/legislative office space,
conference rooms, 16 Committee Rooms, an Auditorium, a large Cafeteria
and a Gift Shop.
features include: a Seal Court with its large terrazzo rendition
of the reverse side of the Texas Seal; skylights which provide a
large amount of natural light in the building and allow spectacular
views of the Capitol dome; five additional tunnels connecting the
Extension with other buildings on the Capitol Complex; an Open-Air
Rotunda patterned after the historic Capitol Rotunda; and many architectural
elements and motifs complementing those in the Capitol.