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Block 185
Block 185 Austin Texas May 2020.jpg
Block 185 under construction in May 2020
Alternative names 601 W. 2nd St.
General information
Type Office
Address 601 W. 2nd St.
Town or city Austin
Groundbreaking January 16th, 2019
Estimated completion Q2 2022
Height 594 ft. (181m)
Technical details
Floor count 35
Floor area 719,470 sq. ft.
Design and construction
Architect Pelli Clarke Pelli
Architecture firm STG Design
Developer Trammell Crow

Block 185 is an under construction office skyscraper located at 601 W. 2nd St. in Downtown Austin, Texas. Upon completion in 2021, the tower will be the fourth tallest in Austin at 594 feet. Block 185 will be the tallest office tower in Texas outside of Houston or Dallas. As of June 25, 2019, public renderings of the tower’s architecture have been advertised at the construction site. Block 185 is in Austin’s Second Street District, bound to the west by the Shoal Creek Walk, to the east by Congress Avenue, to the north by Fourth Street and to the south by Lady Bird Lake. The tower is located on the final parcel of the former Green Water Treatment Plant.


After many years of planning, along with many design changes increasing and decreasing in height, Block 185 started construction on January 16, 2019. Even after the groundbreaking, the tenants of the tower had not yet been announced. On January 31, Brandywine announced that Google would lease the entire building. The Austin-American Statesman released the first renderings the same day.

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