The Seattle Public Library's central library was designed by renowned Dutch architect, Rem Koolhaas. The building, completed in 2004, has 362,987 square feet and a book capacity of 1.4 million.
The Seattle Central Library is the flagship library of the Seattle Public Library system. The 11-story (185 feet or 56 meters high) glass and steel building in downtown Seattle, Washington was opened to the public on Sunday, May 23, 2004. Rem Koolhaas was the principal architect and Hoffman Construction Company of Portland, Oregon was the general contractor. The 362,987 square foot (34,000 m²) public library can hold about 1.45 million books and other materials, features underground public parking for 143 vehicles, and includes over 400 computers open to the public. Over 2 million individuals visited the new library in its first year. It is the third Seattle Central Library building to be located on the same site at 1000 Fourth Avenue, the block bounded by Fourth and Fifth Avenues and Madison and Spring Streets. The library has a unique, striking appearance, consisting of several discrete "floating platforms" seemingly wrapped in a large steel net around glass skin. Architectural tours of the building began on June 5, 2006.
In 2007, the building was voted #108 on the American Institute of Architects' list of Americans' 150 favorite structures in the US. It was one of two Seattle buildings included on the list of 150 structures, the other being Safeco Field.
The architects conceived the new Central Library building as a celebration of books, deciding after some research that despite the arrival of the 21st century and the "digital age," people still respond to books printed on paper. The architects also worked to make the library inviting to the public, rather than stuffy, which they discovered was the popular perception of libraries as a whole.
Although the library is an unusual shape from the outside, the architects' philosophy was to let the building's required functions dictate what it should look like, rather than imposing a structure making the functions conform to that.
For example, a major section of the building is the "Books Spiral," (designed to display the library's nonfiction collection without breaking up the Dewey Decimal System classification onto different floors or sections). The collection spirals up through four stories on a continuous series of shelves. This allows patrons to peruse the entire collection without using stairs or traveling to a different part of the building.
Other internal features include; the Microsoft Auditorium on the ground floor, the "Living Room" on the third floor (designed as a space for patrons to read), the Charles Simonyi Mixing Chamber (a version of a reference desk that provides interdisciplinary staff help for patrons who want to have questions answered or do research), and the Betty Jane Narver Reading Room on level 10 (with views of Elliott Bay).
New functions include automatic book sorting and conveyance, self-checkout for patrons, pervasive wireless communications among the library staff, and over 400 public computer terminals.