One Metropolitan Square

{{Short description|Office skyscraper located in downtown St. Louis, Missouri}}

{{Use mdy dates|date=February 2025}}

{{Use American English|date=January 2025}}

{{Infobox building

| name = Metropolitan Square

| image = One Metropolitian Square.jpg

| image_size = 240px

| caption =

| location = 1 Metropolitan Square
St. Louis, Missouri

| coordinates = {{coord|38.6275|-90.1896|region:US-MO_type:landmark|display=inline,title}}

| status = Completed

| start_date =

| completion_date = {{Start date and age|1989}}

| opening =

| building_type = Commercial offices

| antenna_spire =

| roof = {{convert|180.7|m|abbr=on}}

| top_floor =

| floor_count = 42

| elevator_count =

| cost =

| floor_area = {{convert|88559|m2|abbr=on}}

| architect = Hellmuth, Obata & Kassabaum

| structural_engineer =

| main_contractor = McCarthy/Kwame Construction

| developer =

| owner = 601 West Associates, LLC.

| management = Jones Lang LaSalle

| public_transit =

| references = {{Cite web |url=https://www.emporis.com/buildings/127235 |archive-url=https://web.archive.org/web/20160122202752/https://www.emporis.com/buildings/127235 |url-status=usurped |archive-date=January 22, 2016 |title=Emporis building ID 127235 |work=Emporis}}{{SkyscraperPage|3668}}{{Structurae|20034911}}

}}

One Metropolitan Square, also known as Met Square, is an office skyscraper completed in 1989, located in downtown St. Louis, Missouri. At {{convert|180.7|m|abbr=on}}, it is the tallest building in the city and second tallest building in Missouri.

Major tenants include law firms Bryan Cave and Evans & Dixon, the Bi-State Development Agency and Greater St. Louis Inc.{{Cite web |title=How 4 tenants inside one of the region's largest office buildings are coming back to work |url=https://www.bizjournals.com/stlouis/news/2021/03/18/how-tenants-inside-met-square-are-coming-back.html |access-date=2024-02-15 |website=www.bizjournals.com}}

The building was designed by the architectural firm Hellmuth, Obata and Kassabaum and was constructed by McCarthy Building Companies, Inc., the largest general contractor in St. Louis. In early May, 2014, a DJI Phantom quadcopter drone crashed into the building.{{cite news|url=http://www.bizjournals.com/stlouis/morning_call/2014/05/police-investigating-drone-crash-into-met-square.html|title=Police investigating drone crash into Met Square building|last=Moffitt|first=Kelly|publisher=St. Louis Business Journal|date=8 May 2014}}{{cite news|url=http://stlouis.cbslocal.com/2014/05/08/drone-strikes-downtown-st-louis-building/|title=Drone Strikes Downtown St. Louis Building|last=Calhoun|first=Michael|publisher=KMOX|date=8 May 2014}}