Southport (Renton, Washington)

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General information
LocationRenton, Washington
Construction started2001
CompletedResidential phase (2002–08)
Hotel and conference center (2017)
Office buildings, first phase (2019)
Design and construction
ArchitectZGF Architects
DeveloperSeco Development

Southport is a mixed-use development in Renton, Washington, United States. It is located on the southern shore of Lake Washington adjacent to the Renton Landing lifestyle center and the Boeing Renton Factory.


Southport is a 2.4 million square-foot mixed-use development,[1] located on 32.2 acres of property along Lake Washington in Renton, Washington.[2] Development began in 1999, when Seco Development's CEO Michael Christ purchased the Shuffleton steam plant from Puget Sound Energy for $7 million.[3] Initial plans were to create a mixed-use complex including between five and eight buildings, between 543 and 581 residential units, from 500,000 to 750,000 square feet of office space, and 38,000 square feet of retail space.[4] The Shuffleton plant was demolished in 2001, and construction on the residential phase of Southport began later that year.[5] An additional 7.7 acres was purchased from Puget Sound Energy for the purpose of expansion in 2019.[6]

Between 2002 and 2008, the complex opened 383 residential apartment units.[3] By 2015 construction had begun on a 347-room Hyatt Regency of 12 stories in height, in addition to a 43,000 square foot convention center.[1] Ground was broken on the development of the complex’s office space in 2016, designed by ZGF Architects.[7] The hotel and conference center opened in 2017.[8] As of 2019 the complex included 712,752 square feet of office space[9] across three office buildings.[1] The complex also includes 30,000 square feet in retail space.[10]


Seco plans to run ferry routes directly between Southport and other parts of the region, including South Lake Union in Seattle.[10] The complex also includes a six-story parking garage[3] and a private yacht dock.[11]


  1. ^ a b c Sanjay Bhatt (November 3, 2015). "Office tenants gobbled up more space in Seattle than NYC, Chicago". The Seattle Times.
  2. ^ "SECO breaks ground on Southport office complex". Renton Reporter. January 28, 2016.
  3. ^ a b c Brian Miller (May 17, 2018). "On the Block: Southport is a game-changer for Renton, with Class A offices and plans to expand". Seattle Daily Journal of Commerce.
  4. ^ Keith Ervin (March 12, 1999). "Eastside Business -- Seco Plans To Develop Renton Site -- Seco Has Mixed-Use Plans For Renton Waterfront Site". Seattle Times.
  5. ^ Bill Virgin (September 27, 2001). "Steam plant stacks to fall - Demolition in Renton tomorrow morning to clear way for big development". Seattle Post-Intelligencer.
  6. ^ "Seco adds to Southport land". Seattle Daily Journal of Commerce. December 26, 2019.
  7. ^ Marc Stiles (January 19, 2016). "Construction starts on huge office campus in Renton near Boeing". Puget Sound Business Journal.
  8. ^ Leah Abraham (July 12, 2017). "Highly-anticipated Hyatt Regency Lake Washington opens - Seattle Seahawks wide receiver Doug Baldwin made an appearance at the hotel's grand opening on Monday". Renton Reporter.
  9. ^ Jake Whittenberg (May 13, 2019). "Development project aims to attract big tech to Renton". KING 5 News.
  10. ^ a b TJ Martinell (July 18, 2019). "Lake Washington ferry service planned". Lens Magazine.
  11. ^ Jeanne Lang Jones (August 2016). "A New Point of View in Renton - Southport corporate campus development seeks a high-end tenant to help polish the city's image". Seattle Business Magazine.