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City Names Commuter Parking and Mixed-Use Project Team Finalists: Mainstreet Property Group LLC and Shelter Holding / Weinstein A+U

Oct 31, 2018 – In early September, the City of Mercer Island issued a Request For Qualifications (RFQ) seeking innovative and capable property developers to design and build a development consisting of a City-owned commuter parking facility and a mixed-use residential/commercial structure in Town Center. The City received nine submissions and narrowed them down to five semi-finalists:
  • Imagine Housing
  • Mainstreet Property Group LLC
  • Reve Development 
  • Shelter Holding / Weinstein A+U
  • Stream Real Estate Partners
On October 22, the semi-finalists presented their qualifications and concepts at a City-hosted Open House. Over 100 community members attended the meeting. Earlier that day, the semi-finalists were interviewed by a committee consisting of City staff, Planning and Design Commission representatives, and outside technical advisors. 

Mainstreet Property Group LLC and Shelter Holding / Weinstein A+U were selected to advance in the RFQ process as preliminary finalists. Both teams are composed of strong, well-qualified consultant teams with a proven track record. Initial design concepts from the finalists included space for the Mercer Island Center for the Arts as well as significant parking (up to 150 parking spaces) for the future commuter parking facility.

As a next step, staff will conduct a thorough interview and background check with each team. The design concepts are preliminary and will be further refined once a finalist is selected. 

The Council is currently scheduled to meet with the finalists on Monday, November 26, 2018. The selected firm will then enter into negotiations with the City for an Exclusive Negotiation Agreement (ENA). Following formal Council adoption of the ENA, the City will work closely with the community and developer to design the project. 

The City intends to create a single parcel by assembling two separate properties, consisting of the “Tully’s” property (7810 SE 27th Street) and a portion of the City-owned land on Sunset Highway (See map). The Tully’s property is currently under contract with the City. This unique project at a premier location will develop a gateway connection between the City’s Town Center and the future Sound Transit Light Rail Station (opening in 2023).

For more information, visit or contact Kirsten Taylor, Senior Project Manager, at or at (206) 275-7661.


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