Design Criteria
  Structural Tree Soil
  Amended Native Soil
Plans & Details
Monitoring & Lessons Learned
Cost Considerations
Additional Resources

Here are just a few reasons why Parking Forests are a sustainable win-win-win scenario.

Parking Forests are good for business owners.
The canopy of a tree isn’t just an attractive place to park when the weather is hot or when rain is falling. Studies have shown that customers are more likely to shop at stores with well landscaped frontages and sites and will pay more for the goods and services they receive there, expecting the quality to be higher.

Parking Forests are good for landowners.
As long as vegetation doesn’t reduce the ability of customers to see the businesses commercial spaces with vegetation rent out for more than spaces without vegetation.

Parking Forests are good for building owners.
Trees lower cooling costs. “Mature tree canopy reduces air temperatures by about 5 to 10 degrees F, influencing the internal temperatures of nearby buildings.” http://www.naturewithin.info/Policy/EconBens-FS3.pdf

Parking Forests are good for taxpayers.
Cleaner air and water means less money spent to deliver clean water to you. Less runoff means downstream public conveyance systems won’t have to be replaced. In addition, parking forests can help avoid litigation by helping to meet your community’s water quality regulations.

Parking Forests at the site scale are cost effective.
Our parking forests are econimically competitive with other stormwater and urban canopy facilities, like green streets, being built in the Pacific Northwest.

Parking Forests are good for everybody.
The aesthetic value of a tree has shown to improve mood and benefit health over and over again, but trees give us more than just aesthetics. They give us good health benefits, like providing oxygen – just try going a few minutes without it! (The average person needs two trees for his or her annual oxygen demand.)

Parking Forests are good for the environment.

  • Intercept and evaporate rainfall and will also take it up and evapotranspire the water, even during the rainy season.
  • Shade parking lots and reduce temperature pollution improving habitat for temperature sensitive species like cutthroat trout and threatened steelhead trout and reducing energy demand in nearby buildings through mitigation of the heat island effect.
  • Treat stormwater runoff with the plentiful microbes that gather on their roots waiting to eat pollutants such as hydrocarbons.
  • Hold soil from being eroded.
  • Provide habitat for birds and small mammals.
  • Facilitate infiltration and groundwater recharge (if conditions allow).
Creative Commons LicenseParking Forest Website by Green Girl LDS is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. We believe the term "Parking Forest" was coined originally by Brian Wegener of the Tualatin Riverkeepers in an email on June 29, 2013.
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