{"nrhp_refnum":"80004130","name":"Merchants and Manufacturers Building","other_names":["M &amp","M Building"],"category":"building","location":{"address":"1 Main St.","address_restricted":false,"city":"Houston","county":"Harris County","state":"TX","lat":29.76614139800006,"lon":-95.35921925499997,"geom_source":"nps_gis"},"listed_date":"1980-09-17","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Commerce","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A ten-story reinforced concrete commercial high-rise at One Main Street in Houston, Texas, built 1928-1930 and designed by the Austin firm Giesecke and Harris. Built as a merchandise mart, it now serves as a university campus building.","why_significant":"The building is argued to represent Houston's economic expansion of the 1920s through an unusual design that brought rail, truck, water access and indoor parking for 400 cars into one structure. It was the largest building in the city when completed and carries fine Art Deco detailing. Its later history, from Depression-era bankruptcy to postwar revival attempts and educational use, reflects changing economic conditions in Houston.","narrative":"Rising ten stories above Main Street in downtown Houston, the Merchants and Manufacturers Building was designed as a merchandise mart where manufacturers and merchants could keep offices and displays close together. Giesecke and Harris of Austin designed it, and Don Hall built it between 1928 and 1930. Its site beside Buffalo Bayou, two railroads and Main Street allowed rail, truck and water shipping to reach one structure, which also held indoor parking for 400 cars. The reinforced concrete frame carries brick walls, twin towers set 22 feet apart, and cast concrete Art Deco ornament. Opening just as the Great Depression began, the building went bankrupt in 1934, though it kept a varied mix of tenants. Later owners tried to revive its original purpose, but suburban shopping centers drew business away. South Texas Junior College moved in during 1967, and the University of Houston acquired the building in 1974 for its downtown campus. Its exterior and structure remain largely intact.","period_of_significance":"1928-1930","architect_builder":"Giesecke and Harris, Austin (architects); Don Hall (builder)","architectural_style":"Art Deco","criteria":[],"status_note":"Occupied and in excellent condition; used as an educational facility by the University of Houston-Downtown College, with some altered interiors.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:54:18.774991-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/56/9723/40972356/content/electronic-records/rg-079/NPS_TX/80004130.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/80004130/e76f9ffd6c-800.webp","url_1600":"https://nationalhistoricalregister.com/media/80004130/e76f9ffd6c-1600.webp","licence":"CC BY 3.0","author":"Ed Uthman, Houston, Texas, USA","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Merchants_and_Manufacturers_Building_(bayou_view)_Houston.jpg\" rel=\"noopener\">Ed Uthman, Houston, Texas, USA</a>, <a href=\"https://creativecommons.org/licenses/by/3.0\" rel=\"license noopener\">CC BY 3.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Merchants_and_Manufacturers_Building_(bayou_view)_Houston.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/40972356","wikipedia":"https://en.wikipedia.org/wiki/Merchants_and_Manufacturers_Building","wikidata":"https://www.wikidata.org/wiki/Q6818447"},"indexable":true,"url":"https://nationalhistoricalregister.com/texas/harris-county/merchants-and-manufacturers-building-80004130/"}