AGC Biologics proposes 126K-square-foot expansion to Boulder facility

BOULDER — Biopharmaceutical company AGC Biologics is planning a more than 126,000-square-foot expansion to its manufacturing facility at 5550 Airport Blvd., according to planning documents filed with the city.

The existing plant is about 178,000 square feet. The expansion would feature a 126,480-square-foot two-story manufacturing space and 188 new spaces in the parking lot. It would also include new standalone electrical and waste buildings, respectively 2,180 and 3,000 square feet, and a 28,000-cubic-foot expansion of its detention pond. 

AGC Biologics acquired the building for $39.7 million from AstraZeneca in 2020, according to Boulder County property records. It has not yet begun production…