Megatalls.com
Supertalls & megaprojects · progress and the people behind them

One America Plaza

Tallest finished building in San Diego

One America Plaza
Photo: Nehrams2020, CC BY-SA 3.0, via Wikimedia Commons

One America Plaza is an office building in San Diego, with 34 floors, finished in 1991. It stands 152.4 m (500 ft) tall, which makes it the tallest finished building in San Diego.

Height
152.4 m · 500 ft
Rank in San Diego
1st of 25 listed
Floors
34
Completed
1991
Use
Office
City
San Diego, USA

Next to it in the ranking

See all of San Diego's tallest buildings

Talk about San Diego

Open the San Diego city forum for news, photos and questions about the skyline.

Heights, floors and years for finished buildings follow published figures, cross-checked with Wikipedia's list of tallest buildings in San Diego. Last checked 2 Nov 2026.