901 Fifth Avenue

Forterra (formerly Cascade Land Conservancy), based in Seattle, Washington, US, is the state of Washington’s largest land conservation, stewardship and community building organization dedicated solely to the region. Currently, Forterra operates in multiple counties. Principal offices are in Seattle, Roslyn, and Tacoma.

Daniels Recital Hall, formerly the First United Methodist Church, now The Sanctuary, is a preserved church sanctuary that has been re-purposed into a recital hall. It was built in 1908 on the southwest corner of Fifth Avenue and Marion Street in Seattle, Washington, United States. The recital hall opened in 2009 hosting concerts that use the already existing church acoustics.The hall is owned by Nitze-Stagen & Co. who saved it in a deal that was met with the First United Methodist Church. This deal brought an end to a nearly 25-year battle for the preservation of the site.

Madison Centre (formerly known as M5 Commerce Centre and 505 Madison) is a 530-foot-tall (160 m) skyscraper in Downtown Seattle, Washington. It was completed in October 2017 and has 37 floors of office space totaling 746,000 square feet (69,300 m2) of gross leasable area. It is the thirteenth-tallest building in Seattle. It is located at the intersection of 5th Avenue and Madison Street in Downtown Seattle, adjacent to the Seattle Central Library and William Kenzo Nakamura United States Courthouse.

Fountain of Wisdom is a fountain and sculpture by George Tsutakawa, installed out the Seattle Central Library, in the U.S. state of Washington.

The Seattle Central Library is the flagship library of the Seattle Public Library system. The 11-story (185 feet or 56.9 meters high) glass and steel building in downtown Seattle, Washington was opened to the public on May 23, 2004. Rem Koolhaas and Joshua Prince-Ramus of OMA/LMN were the principal architects, and Magnusson Klemencic Associates was the structural engineer with Arup. Arup also provided mechanical, electrical, and plumbing engineering, as well as fire/life safety, security, IT and communications, and audio visual consulting. Hoffman Construction Company of Portland, Oregon, was the general contractor. The 362,987 square feet (33,722.6 m2) public library has the capacity to hold about one and a half million books and other materials. It offers underground public parking for 143 vehicles and over 400 computers accessible to the public. Over two million people visited the library during 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 in June 2004. In 2007, the building was voted #108 on the American Institute of Architects' list of Americans' 150 favorite structures in the U.S. It was one of two places in Seattle to be included on the list of 150 structures, the other being T-Mobile Park.

F5 Tower (previously The Mark and Fifth and Columbia Tower) is a 660-foot-tall (200 m) skyscraper in Downtown Seattle, Washington. It consists of 44 floors and is the sixth-tallest building in Seattle. The tower consists of 516,000 square feet (47,900 m2) of office space leased entirely by F5 Networks and a 189-room luxury hotel operated by Lotte Hotels & Resorts. The hotel, initially planned to open in 2017 under another operator, was officially opened in September 2020. It was designed by Zimmer Gunsul Frasca and was being developed by Daniels Real Estate. While it was being built during Seattle's historic building boom the F5 Tower was the most expensive building under construction.The tower was built next to the former First Methodist Episcopal Church. Although the education wing was demolished to make room for the tower, the remainder of the former church building has been preserved and has since been re-purposed into Daniels Recital Hall. The building was acquired by private equity firm KKR in December 2019 at an estimated cost of $440 million.

The Fourth and Madison Building (formerly the IDX Tower) is a 40-story skyscraper in downtown Seattle, Washington. The building is located at 925 Fourth Avenue, at the intersection with Madison Street. Upon its completion in 2002, the late-modernist highrise was Seattle's first building to exceed 500 ft (150 m) in over a decade. In 2007, Fourth and Madison was awarded the BOMA International Office Building of the Year Award in the 500,000–1,000,000 sq ft (46,000–93,000 m2) category.The rooftop garden on the seventh floor is a privately owned public open space (POPOS).Construction of the foundation required shoring around the Great Northern Tunnel and Downtown Seattle Transit Tunnel. The tower also cantilevers 12 feet (3.7 m) over the Downtown YMCA.

The Rainier Club is a private club in Seattle, Washington; it has been referred to as "Seattle's preeminent private club." Its clubhouse building, completed in 1904, is listed on the National Register of Historic Places. It was founded in 1888 in what was then the Washington Territory (statehood came the following year). As of 2008, the club has 1,300 members.

The Central Building is a historic building at 810 3rd Avenue in downtown Seattle, in the U.S. state of Washington. C.R. Aldrich designed the structure following the 1906 San Francisco earthquake.

The Seattle Public Library (SPL) is the public library system serving the city of Seattle, Washington. Efforts to start a Seattle library had commenced as early as 1868, with the system eventually being established by the city in 1890. The system currently comprises 27 branches, most of which are named after the neighborhoods in which they are located. The Seattle Public Library also includes Mobile Services and the Central Library, which was designed by Rem Koolhaas and opened in 2004. The Seattle Public Library also founded the Washington Talking Book & Braille Library (WTBBL), which it administered until July 2008. All but one of Seattle's early purpose-built libraries were Carnegie libraries. Although the central Carnegie library has since been replaced twice, all the purpose-built branches from the early 20th century survive; however, some have undergone significant alterations. Ballard's former Carnegie library has since housed a number of restaurants and antique stores among other enterprises, while others such as the Fremont and Green Lake branches have been modernized and remain in use as libraries.

Renaissance Seattle Hotel is a hotel in Seattle, in the U.S. state of Washington. It has more than 500 rooms.The 28-story hotel was built in 1983. It received a $28 million remodel in 2010, and another renovation in 2016.

The William Kenzo Nakamura United States Courthouse is a federal courthouse in Seattle, Washington primarily used by the United States Court of Appeals for the Ninth Circuit. Built in 1940 as the United States Courthouse to consolidate federal agencies within the city, it was renamed for Medal of Honor recipient William K. Nakamura in 2001. The Ninth Circuit started using the building in the 1970s and became the principal tenant in 2004 when most other users moved to the new 23-story United States Courthouse in the Denny Triangle. The 10-story Art Deco building at 1010 Fifth Avenue houses 5 courtrooms and is one of four regular meeting places for the Ninth Circuit, where appeals from northern Districts are heard. With a mix of Neoclassical and modern abstract features, the Nakamura Courthouse overlooks a large sloping lawn (landscaped with a large central walkway, planters, hedges, and oak trees) which has become one of the more significant public green spaces in downtown Seattle.