DJC Green Building Blog

A rooftop P-patch grows in Columbia City

Posted on September 21, 2012

The following post is by DJC staff:

Harbor Urban says people are starting to move into the GreenHouse Apartments at 3701 S. Hudson St. in Columbia City. The LEED gold project has one notable feature: irrigated garden plots for each resident on the roof.

Harbor calls it “roof-to-fork urban agriculture.”

There’s also a greenhouse on the roof and a communal space for dining, as well as edible trees and shrubs scattered throughout the property. The rooftop plants absorb rainwater and reduce runoff, and the soil and vegetation help insulate the buildings.

Photo courtesy of Harbor Urban

Rooftop gardens and greenhouse at Columbia City's GreenHouse Apartments.

The site is near the Columbia City light rail station and the farmers’ market.

Harbor said half of the units were leased before the building officially opened.

Harbor Urban, LLC is the developer, Exxel Pacific built it and Runberg Architecture Group was the architect. The landscape architect was Hewitt and the structural engineer was CPL. LEED consultant was O’Brien & Co.

Martha Barkman, director of design and construction for Harbor Urban, said, “We spent a lot of time early in the entitlement stages to make sure it was something that would be accepted by and truly fit into the existing community, which is a unique treasure.”

Harbor said GreenHouse is the first new market-rate apartments in Columbia City since 1969.

GreenHouse has 124 units, 20 percent of which are designated affordable under Seattle’s Multi-family Tax Exemption program.

This post has been updated since it was first published to name additional project team members.

Share this:
Share this page via Email Share this page via Stumble Upon Share this page via Digg this Share this page via Facebook Share this page via Twitter