Fifteen Fifty

The Jon Sims Center for the Performing Arts (JSCPA) was a multidisciplinary performing arts center in San Francisco, California, that supported artistic voices of all performing artists no matter their sexual identity or preferences. The Center provided resources to support and promote new and existing arts programs. JSCPA was the "official" home to many groups, including the San Francisco Gay Freedom Day Marching Band (seated concert band), the San Francisco Tap Troupe, City Swing with Gail Wilson, the Barbary Coast Cloggers and the original home of the Pacific Ballet headed by Kaz Zmuda. At its height, the resources JSPCA provided artists included three rehearsal/performance spaces and networking resources for local performing artists, as well as funding for at least one artist-in-residence annually. The Pacific Ballet Center became the permanent home of the San Francisco Tap Troupe in 1983. Two years later Pacific Ballet offered to let the SF Tap Troupe take over management of building. The group approached the board of the SF Band Foundation and the board agreed to take control of 1519 Mission Street and signed a new lease. The Jon Sims Center opened in 1985, a year after the death of Jon Reed Sims, the founder of the San Francisco Gay Freedom Day Marching Band and Twirling Corps (now the San Francisco Lesbian/Gay Freedom Band). Sims, who died of AIDS in 1984, also founded the San Francisco Gay Men's Chorus, the San Francisco Lesbian Gay chorus and Lambda Pro Musica (a classical seated group). Sims later founded the San Francisco Tap Troupe with his close friend Rosie Radiator. The Center closed in November 2006 following a financial crisis that included the disappearance of $35,000 in grant money. Longer-term problems included the lack of a stable, long-term board and executive director, despite determined efforts to keep the institution alive. The Sims Center was located at 1519 Mission Street, San Francisco, CA 94103.

La Mamelle, Inc. / Art Com was a not-for-profit arts organization, artist-run space, or alternative exhibition space, active from 1975 through 1995, and was located at 70-12th Street in the South of Market-area of San Francisco, California. The organization's first venture was publishing but it became involved in a multiplicity of activities including maintaining an artists' space and presenting exhibitions and events of mail art, performance art, conceptual photography, video art production and screenings, a library, distributing artist-produced works, and creating one of the first artists' online networks.

The Caldron (often misspelled Cauldron), at 853 Natoma Street in San Francisco, in the South of Market St. area, was a gay sex club which opened in 1980 and closed in 1984. It was called "the epitome of the uninhibited, abandoned, 'sleazy' sex club."

Van Ness station is an underground Muni Metro station on the Market Street subway at the intersection of Market Street and Van Ness Avenue (U.S. Route 101) in San Francisco, California. The station consists of a concourse mezzanine on the first floor down, and a single island platform on the second level down. Service at the station began in February 1980.The station has suffered flooding during heavy rainstorms, including one in October 2009, and another in December 2014 which damaged an electrical equipment room. In February 2017, the SFMTA signed a $1.9 million contract to repair water-damaged wiring in the room.This station is at the southern terminus of the Van Ness Bus Rapid Transit route. Under the proposed western variant of the planned Better Market Street project, the outbound F stop would be moved across the intersection.

The Fillmore West was a historic rock and roll music venue in San Francisco, California, US which became famous under the direction of concert promoter Bill Graham from 1968 to 1971. Named after The Fillmore at the intersection of Fillmore Street and Geary Boulevard (which was Graham's principal venue from 1966 to 1968), it stood at the southwest corner of Market Street and South Van Ness Avenue in the Civic Center district. In June 2018, the top two floors of the building reopened as SVN West, a new concert and corporate event venue.

NEMA, also known as Tenth and Market, is a 754-unit luxury residential apartment complex in the Mid-Market neighborhood of San Francisco, California, United States, across the street from Twitter's corporate headquarters. The complex consists of a 24-story, tower at Jessie and Tenth Streets and a 37-story, tower at Market and Tenth Streets, connected by a nine-story podium along Tenth Street.

The New Conservatory Theatre Center is a not-for-profit theatre company located in San Francisco, California. NCTC showcases an eight-show Pride Season, an In-Concert/Cabaret Series, Family Theatre performances, YouthAware Touring Educational Theatre, and an Emerging Artists program. NCTC also houses a comprehensive Conservatory for youth and adults. It is located in San Francisco at 25 Van Ness Avenue, near Market Street.

Pacific High Recording (also referred to as Pacific High Studios) was an independent recording studio in San Francisco. Founded in 1968, the studio was part of the San Francisco sound and the location for recordings by such notable artists as Sly and the Family Stone, the Grateful Dead, The Charlatans, Quicksilver Messenger Service, and Van Morrison.

The San Francisco Conservatory of Music (SFCM) is a private music school in San Francisco, California. As of 2021, it had 480 students.

Market Square (formerly the Western Furniture Exchange and Merchandise Mart, the San Francisco Mart, and, colloquially, the Twitter Building) is an Art Deco building in the Mid-Market neighborhood of San Francisco, California, United States. Located at 1355 Market Street, it was constructed in 1937 and originally served as a showroom for retailers and wholesalers in the furniture industry. In the early 21st century, the building underwent an extensive conversion into office and retail space, and today is most well known as the headquarters for X Corp., the owner of the social networking service Twitter.

VIZ Media LLC is an American manga publisher, anime distributor and entertainment company headquartered in San Francisco, California. It was founded in 1986 as VIZ LLC. In 2005, VIZ LLC and ShoPro Entertainment merged to form the current VIZ Media LLC, which is owned by Japanese publishing conglomerates Shueisha and Shogakukan, as well as Japanese production company Shogakukan-Shueisha Productions (ShoPro). In 2017, Viz Media was the largest publisher of graphic novels in the United States, with a 23% share of the market. In 2020, Viz Media saw a 70% growth in the U.S. market, in line with a 43% increase in overall manga sales in the United States the same year.

100 Van Ness is a skyscraper in San Francisco. Formerly an office building, it was converted into residential use. It is located in the Civic Center neighborhood near the San Francisco City Hall on Van Ness Avenue. The building, completed in 1974, stands 400 feet (122 m) and has 29 floors of former office space that housed the California State Automobile Association (CSAA).The building was sold by CSAA to VNO Patson, LLC in 2008 and was leased back to CSAA until 2010, at which time they relocated to a new corporate headquarters campus near Walnut Creek. VNO Patson's interest in the building was foreclosed on by its lender and is now owned by Civic Center Commons Associates, which took title to the property in 2011. The current owner, Emerald Fund, converted the building into 418 rental apartments. It was completed by 2015. The amenity roof deck is the largest in San Francisco and includes a bocce ball court, fire pit BBQ stations and several group lounge spaces (complete with heated concrete benches). The conversion was completed by the San Francisco office of Solomon Cordwell and Buenz and the interior design was completed by New York-based Irish Interior Designer Colum McCartan, founder and principal of McCARTAN.