311 11TH East

View Images

311 11th Avenue East is a new multi-family housing proposal for the Capitol Hill neighborhood in Seattle. The proposed building will be approximately 30,000 gross square feet and include eight stories of housing over a basement. The total number of units will be approximately 70, with a mix of one bedroom, studio, and Small Efficiency Dwelling Units. Amenity spaces are provided in the form of a street-facing lobby and lounge area and a roof deck with views to downtown and the Olympic Mountains. The design concept provides an indoor amenity space for residents on the 8th floor with an adjoining second roof deck and connection to the upper roof deck.

Passive House

The proposed development continues our dedication to building attractive, attainable, healthy, and energy efficient housing that enriches the neighborhood context. To aid in that objective, the team has committed to attaining Passive House certification for this project. This requires careful attention to every design decision and balancing the need to successfully integrate the building into the public realm with creating an efficient and durable building envelope. The Passive House certification also helps fulfill two urgent needs: reducing energy costs to create housing that people can afford to live in, and reduction of greenhouse gas emissions to help address the climate crisis facing the world.

Healthy Materials

The project team would also like to take advantage of Seattle’s Priority Green Expedited program which further mandates Low VOC materials, the use of products with no added urea formaldehyde, measures which will enhance the health and comfort of the building occupants.


Coho Collaborative


Seattle, WA




30,000 sf