The Green Water Treatment Plant Redevelopment is part of the Seaholm District in Downtown Austin. Formerly the Thomas C. Green Water Treatment Plant, the site is bounded by Shoal Creek to the west, the 2nd Street alley to the north, San Antonio Street to the east, and Cesar Chavez to the south. Nueces Street and 2nd Street WERE extended through the site as part of the project.

Through a competitive bidding process, the City of Austin selected the Trammell Crow Company as the Master Developer and entered into a Master Development Agreement for the sale and redevelopment of the former water treatment plant. Trammell Crow and partners will develop 1.7 million square feet of mixed-uses including residential, office, hotel and retail. The ground-floor retail will provide opportunities for local business, and the project will make significant contributions to sustainability, open space, affordability, public art and music. The development team purchased the property in phases under the terms of the Master Development Agreement starting in January 2014, with Block 1 (NorthShore Apartments). Block 23 (500 W 2nd Street) offices houses Google as an anchor tenant. The Austin Proper Hotel and Condominium on Block 188 is anticipated to open in 2019. The fourth parcel, Block 185 Offices, began construction in 2019 and will be entirely leased by Google upon completion in 2021. The Economic Development Department’s Redevelopment Division leads this project on behalf of the city.

Public Benefits

Job Creation

  • Construction Jobs (prevailing wage for public improvements and shell construction, M/WBE Goals)
  • Local business presence in retail

Affordable Housing

  • 50 rental units on site affordable at 80% MFI for 40 years
  • For sale residential and commercial density bonuses
  • Contribution ongoing 40% property tax

Public Art and Music

  • $375,000 for Art in Public Places
  • $150,000 for Public Music programming

Shoal Creek Improvements

  • $250,000 for improvements to Shoal Creek adjacent to the property

Heritage Trees

  • Preservation, relocation and mitigation for heritage trees

Parking and Alternative Transportation

  • 250 public parking spaces
  • Electric Vehicle charging stations
  • Car Share parking
  • Bicycle storage and employee showers


  • Austin Energy District Cooling participant
  • Austin Water Utility Reclaimed Water customer
  • Enhanced Greenbuilding requirements

Project History

The former Thomas C. Green Water Treatment Plant opened in 1925 and was Austin's first water treatment plant. The plant was decommissioned and deconstructed 2010. Learn more about Green Water Treatment Plant's Water and Wastewater History.

June 18, 2008: Austin City Council approved a resolution authorizing the City Manager to negotiate and execute an agreement with Trammell Crow/Constructive Ventures, Inc./USAA, for the sale and redevelopment of the Green Water Treatment Plant and Energy Control Center.

06/18/08 Council Presentation

October 14, 2010: City Council approved an ordinance authorizing the City Manager to execute a Master Development Agreement with CONSTRUCTIVE VENTURES, INC. and TC AUSTIN DEVELOPMENT, INC. for redevelopment of the property currently occupied by the Austin Energy Control Center.

April 5, 2012: City Council approved an ordinance authorizing the City Manager to execute a Master Development Agreement with TC GREEN MASTER DEVELOPER, LLC. for redevelopment of the property formerly occupied by the Thomas C. Green Water Treatment Plant.

Energy Control Center (ECC) Master Development Agreement (MDA)

ECC MDA Exhibits

Green Water Treatment Plant (GWTP) MDA