800 Fifth Avenue

{{Short description|Skyscraper in Seattle}}

{{Distinguish|text=the Columbia Center, formerly known as the Bank of America Tower}}

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

{{Infobox building

| name = 800 Fifth Avenue

| image = Bank of America Fifth Avenue Plaza Building.jpg

| caption =

| alternate_names = 800 Fifth Avenue Plaza

| location = 800 5th Avenue
Seattle, Washington, U.S.

| coordinates = {{coord|47.6058|-122.3302|region:US-WA|display=inline,title}}

| map_type = Seattle WA Downtown

| map_caption = Location within downtown Seattle

| start_date = 1979

| completion_date = 1981

| building_type = Commercial offices

| antenna_spire =

| roof = {{convert|165.51|m|abbr=on}}

| top_floor =

| floor_count = 42

| elevator_count =

| cost =

| floor_area = {{convert|934000|sqft|abbr=on}}

| architect = 3DI/International

| structural_engineer= Magnusson Klemencic Associates (formerly Skilling, Helle, Christiansen, Robertson)

| main_contractor = J.A. Jones Construction

| developer = Hines

| owner = BPP 800 Fifth Property Owner LLC

| management = EQ Office

| references = {{CTBUH|3010|name=Bank of America Fifth Avenue Plaza}}{{Cite web |url=https://www.emporis.com/buildings/119475 |archive-url=https://web.archive.org/web/20160306074954/https://www.emporis.com/buildings/119475 |url-status=usurped |archive-date=March 6, 2016 |title=Bank of America Fifth Avenue Plaza |work=Emporis}}{{SkyscraperPage|3522|name=Bank of America Fifth Avenue Plaza}}{{Structurae|20027201|name=Bank of America Fifth Avenue Plaza}}

}}

800 Fifth Avenue is a {{convert|166|m|ft|sp=us|adj=on}} skyscraper in Seattle, in the U.S. state of Washington. It was constructed from 1979 to 1981 and has 42 floors. It is the tenth-tallest building in Seattle and was designed by 3D/International.

The building was previously known as Bank of America Fifth Avenue Plaza when its naming rights were held by the Bank of America. It was originally built for Seafirst Bank, which was acquired by the Bank of America. In April 2014, its name was changed to 800 Fifth Avenue.{{cite news|last1=Bhatt|first1=Sanjay|title=Downtown tower gets new name as ownership shifts|url=http://seattletimes.com/html/businesstechnology/2024685727_bofabuildingxml.html|access-date=October 3, 2014|newspaper=The Seattle Times|date=October 2, 2014}} The building was acquired by EQ Office in 2019. It underwent an interior renovation in 2022 that was designed by Olson Kundig to create more lobby space and a public garden.{{cite news |date=January 12, 2023 |title=Downtown tower gets human-centered reno |url=https://www.djc.com/news/co/12153867.html |work=Seattle Daily Journal of Commerce |url-access=subscription |accessdate=January 12, 2023}}