Editing Chelsea, Manhattan (section)

===Early and mid-20th centuries===
[[File:London_Terrace_NY1.jpg|thumb|[[London Terrace]] occupies the entire block bounded [[Ninth Avenue (Manhattan)|Ninth]] and [[Tenth Avenue (Manhattan)|Tenth]] Avenues and 23rd and [[24th Street (Manhattan)|24th Streets]].]]
The neighborhood was an early center for the motion picture industry before World War I. Some of [[Mary Pickford]]'s first pictures were made on the top floors of an armory building at 221 [[26th Street (Manhattan)|West 26th Street]], while other studios were located on 23rd and 21st Streets.<ref name=fednyc>{{cite fednyc}}, pp. 151–155</ref>

To accommodate high freight and industrial demand, several railroads had built [[Rail freight transport|rail freight]] terminals on the Manhattan side of the Hudson River,<ref name="NYCL-1295">{{cite report |url=http://s-media.nyc.gov/agencies/lpc/lp/1295.pdf |title=Starrett-Lehigh Building |date=October 7, 1986 |publisher=[[New York City Landmarks Preservation Commission]] |access-date=April 8, 2023 |archive-date=December 20, 2022 |archive-url=https://web.archive.org/web/20221220192221/http://s-media.nyc.gov/agencies/lpc/lp/1295.pdf |url-status=live }}</ref>{{rp|pages=2–3}} and many freight terminals and warehouses were built in the western part of Chelsea by the late 19th century.<ref name=":0" />{{Rp|page=5}} The first of these was the Central Stores, constructed at 11th Avenue between 27th and 28th Streets in 1891.<ref name="NYCL-1295" />{{rp|pages=2–3}} This was followed in 1900 by the [[Lehigh Valley Railroad]]'s terminal between 26th and 27th Streets, as well as the [[Baltimore and Ohio Railroad]]'s terminal immediately to the south, completed in the early 1910s.<ref name="NYCL-1295" />{{rp|pages=2–3}}<ref name="nyt-1939-12-10">{{Cite news |last=Cooper |first=Lee E. |date=December 10, 1939 |title=New Era in Sight for Eleventh Ave.; a 'new' Eleventh Avenue Emerges as Work Nears Completion on Street and Railroad Improvements |language=en-US |work=The New York Times |url=https://www.nytimes.com/1939/12/10/archives/new-era-in-sight-for-eleventh-ave-a-new-eleventh-avenue-emerges-as.html |url-status=live |access-date=March 29, 2023 |archive-url=https://web.archive.org/web/20230329181317/https://www.nytimes.com/1939/12/10/archives/new-era-in-sight-for-eleventh-ave-a-new-eleventh-avenue-emerges-as.html |archive-date=March 29, 2023 |issn=0362-4331}}</ref> Freight operations on Manhattan's far west side were improved when the elevated [[High Line|West Side Freight Line]] and the [[West Side Elevated Highway]] were built in the 1930s, replacing a surface-level railroad and roadway.<ref name="NYCL-1295" />{{rp|pages=2–3}}

[[London Terrace]] was one of the world's largest apartment blocks when it opened in 1930, with a swimming pool, [[wikt:solarium|solarium]], gymnasium, and doormen dressed as London bobbies. Other major housing complexes in the Chelsea area are [[Penn South]], a 1962 [[cooperative apartment|cooperative housing development]] sponsored by the [[International Ladies Garment Workers' Union]], and the [[New York City Housing Authority]]-built and -operated [[Fulton Houses]] and [[Chelsea-Elliot Houses]].

The 23-story [[Art Deco]] Walker Building, which spans the block between 17th and 18th Streets just off of [[Seventh Avenue (Manhattan)|Seventh Avenue]], was built in the early 1930s. That structure was converted in 2012 to residential apartments on the top 16 floors, with Verizon retaining the lower seven floors.<ref>{{cite web |url=https://www.nytimes.com/2012/03/11/realestate/chelsea-posting-verizon-offices-remade-into-luxury-condos.html |title=Dial C for Condos |website=The New York Times |date=March 8, 2012 |last=Hughes |first=C. J. |quote=One of those Verizon buildings, a 1929 tan-brick Art Deco high-rise at 212 West 18th Street in Chelsea, is being converted into luxury condominiums. The 53-unit project is called Walker Tower for its architect, Ralph Walker, who also designed several other phone company buildings.... Verizon owns Floors 2 through 7, which contain offices for about a dozen employees who will come to work through a West 17th Street entryway. Mr. Stern owns the condo that encompasses Floors 8 through 23. |access-date=October 4, 2021 |archive-url=https://web.archive.org/web/20120309012534/https://www.nytimes.com/2012/03/11/realestate/chelsea-posting-verizon-offices-remade-into-luxury-condos.html |archive-date=March 9, 2012}}</ref> In the early 1940s, tons of [[uranium]] for the [[Manhattan Project]] were stored in the Baker & Williams Warehouse at 513–519 West 20th Street. The uranium was removed and a decontamination project at the site was completed during the early 1990s.<ref>Broad, William J. [https://www.nytimes.com/2007/10/30/science/30manh.html?pagewanted=all "Why They Called It the Manhattan Project"] {{Webarchive|url=https://web.archive.org/web/20170518205859/http://www.nytimes.com/2007/10/30/science/30manh.html?pagewanted=all |date=May 18, 2017 }}, ''The New York Times'', October 30, 2007. Accessed October 23, 2015. "After lunch, we headed to West 20th Street just off the West Side Highway.... On its north side, three tall buildings once made up the Baker and Williams Warehouses, which held tons of uranium.... Dr. Norris's 'Traveler's Guide' fact sheet said the federal government in the late 1980s and early 1990s cleaned the buildings of residual uranium."</ref> By the mid-20th century, the western part of Chelsea had various types of light manufacturing businesses. According to the [[New York City Landmarks Preservation Commission]], these ranged "from printing shops and box companies, to milk-bottling plants and electrical wire and cable manufacturers".<ref name=":0" />{{Rp|page=23}}