Question: what is the nationality of the architect who designed the building at 520 West 28th Street in New York City?

Context paragraphs:
Everard Baths: The Everard Baths or Everard Spa Turkish Bathhouse was a gay bathhouse at 28 West 28th Street in New York City that operated from 1888 to 1986.  The venue occupied an adaptively reused church building and was the site of a deadly fire.

520 West 28th Street: 520 West 28th Street, also known as the Zaha Hadid Building, is located in New York City.  Designed by the architect Zaha Hadid, the building was her first residential building in New York and one of her last projects before her death.  The building is located along the High Line.  The building is set to have four art galleries located at street level.  The building also has a sculpture platform with art curated by Friends of the High Line.

Tin Pan Alley: Tin Pan Alley is the name given to the collection of New York City music publishers and songwriters who dominated the popular music of the United States in the late 19th century and early 20th century.  The name originally referred to a specific place: West 28th Street between Fifth and Sixth Avenues in Manhattan, and a plaque exists (see below) on the sidewalk on 28th Street between Broadway and Sixth commemorates it.

520 West 41st Street: 520 West 41st Street is a proposed 106-story supertall skyscraper.  It would have been located in the Midtown Manhattan section of New York City.  The building would have surpass all other skyscrapers on the island by floor-count.  Upon completion, it would either have been the fifth or sixth tallest building in New York.

Zaha Hadid: Dame Zaha Mohammad Hadid (Arabic: زها حديد‎ ‎ "Zahā Ḥadīd"; 31 October 1950 – 31 March 2016) was an Iraqi-British architect.

Church of the Holy Apostles (Manhattan): The Church of the Holy Apostles is an Episcopal parish located at 296 Ninth Avenue at 28th Street in the Chelsea neighborhood of Manhattan, New York City.  Its historic church building was built from 1845 to 1848, and was designed by the noted New York architect Minard Lafever.  The geometric stained-glass windows were designed by William Jay Bolton.  The building is a New York City landmark and on the National Register of Historic Places.

Dan the Dude: Dan Mulcahy (fl.  c. 1905-15), known by the psudonyms of Louis Harris and Dan the Dude, was a New York criminal and the longtime owner of the Stag Cafe at 28 West 28th Street, in the vice district of Satan's Circus.  The cafe was a popular hangout for many of the criminals in New York's underworld.  Dan was most noted as a fixer and confidante of New York's numerous con men, many of whom came from out of town and used his establishment as their unofficial base.  "In olden times [around 1910-1915] in Dan the Dude's place," it was said, ""you could see a hundred con men there at once, and not one of them would be a native New Yorker.""

Fifth Avenue Theatre: Fifth Avenue Theatre was a Broadway theatre in New York City in the United States located at 31 West 28th Street and Broadway (1185 Broadway).  It was demolished in 1939.

Baudouine Building: The Baudouine Building is a historic building located at 1181-1183 Broadway at the corner of West 28th Street in the NoMad neighborhood of Manhattan, New York City.  It was built from 1895-96 as an office tower with street level store, replacing a hotel that had previously stood on the site, and was designed by Alfred Zucker in the Classical Revival style.

William H. Hume: William H. Hume was an American architect in New York City.  His work included the Hebrew Orphan Asylum of New York (1884) on Amsterdam Avenue (used as an Army Hall in 1943 and then by City College, the site is now the Jacob H. Schiff Playground), Langdon Building at 305 Broadway, Scotch Presbyterian Church on 96th Church and Central Park West (during the booming 1920s it was replaced by a "Skyscraper Church" designed by Rosario Candela, constructed in 1928–29 it included a 16-story apartment tower and a new church sanctuary and classroom space set into the base and fronting West 96th Street) New Netherland Hotel (1892), replaced by the Sherry Netherland Hotel in 1927, Mutual Reserve Building at 305 Broadway and an addition at 615–629 Avenue of the Americas (Sixth Avenue) between West 18th and 19th Streets in the Flatiron District of Manhattan, New York City.  Originally the B. Altman Dry Goods Store, built 1876–77 (David & John Jardine), with addition on the south in 1887 by William H. Hume, and on West 18th Street by Buchman & Fox, 1909.  B. Altman moved to Fifth Avenue and 34th Street in 1906.  The current street retail occupant is The Container Store.

Supporting paragraphs: 520 West 28th Street Zaha Hadid
Answer: Iraqi-British