The site plan was approved and released today with the heights. Also a drilling truck was spotted on the lot today.
The building elevations are files 034 and 035.
https://www.austintexas.gov/devrevie...erRSN=11056288
458 feet 9 inches to mechanical penthouse roof.
435 feet 6 inches to main roof.
422 feet to the highest occupied floor (39th floor).
61 feet 9 inches to the 6th floor podium.
Those numbers are the ones measured from the southwest corner of the building at West Avenue and West 5th Street.