Greenspace can optimize the livability of urban communities by increasing aesthetic appeal and providing ecosystem services that alleviate common urban problems. Studies have shown that integrating multifunctional greenspaces into existing urban infrastructure increases the livability of densely populated urban areas by providing both recreational space and ecosystem services, mitigating urban sprawl and its associated environmental problems. Local implications of these issues arise due to the following statistics: the ratio of workers to residents in Downtown LA is 10:1, and greenspace is almost nonexistent. While many studies have looked at the broader implications of the effects of greenspace in urban areas, little research has been done to assess the net effects of small-scale interstitial greenspace. We will use Harlem Place, a primary service alleyway in Downtown, as a case study to assess the economic, ecological, and social net effects of integrating small-scale greenspace into Downtown LA. Ecosystem services evaluated in this project include air pollution, stormwater runoff, and urban heat island effect mitigation. Public health issues and community awareness will also be analyzed.  This assessment will create a tangible prototype demonstrating the potential of greenspace integration in interstitial spaces. The results of this project will serve to build a foundation for a long-term greening strategy and outreach toolkit to be used by the Sustainability Committee and similar neighborhood councils.

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