Water-Smart Green Infrastructure: The Private Sector Steps Up

A new Urban Land Institute Report details the increasing implementation of citywide green infrastructure networks, including investments on both public and privately owned sites.

3 minute read

May 4, 2017, 5:00 AM PDT

By Katharine Burgess

High Point, Seattle

The infiltration systems in place at the High Point development, in Seattle, are a leading example of green infrastructure development. | Brett VA / Flickr

Catastrophic floods. Withering droughts. Combined sewer overflows. As the planet warms, communities are coping with a range of ever-more-severe water challenges. Green infrastructure is part of the solution: many local governments are deploying natural features to manage water, while creating valuable green spaces in the bargain. And—according to a new report by the Urban Land Institute [pdf]—the private sector is increasingly on board.

Green infrastructure [pdf] offers a cost-effective alternative to traditional “gray” drainage systems, such as pumps and pipes. It’s a catchall term that includes rain gardens, bioswales, and green roofs that help manage stormwater and prevent sewer overflows. Also included are water-conservation strategies such as cisterns and rainwater recycling, which can mitigate the effects of drought. The benefits of this approach are manifold, from improved air and water quality to better climate resilience [pdf] and good-paying jobs for low-skilled workers.

High Point is Seattle, Washington's largest residential project with 1,700 affordable and market-rate homes. The redevelopment includes an extensive natural drainage system with bioswales and constructed wetlands, picture above. (Image by MIG|SvR, courtesy of the ULI)

For years, local governments have embraced green infrastructure on public land, and many have used mandates and incentives to encourage its uptake on private property. Those efforts have borne fruit. Today, we see the emergence of coordinated citywide green infrastructure networks that include both public and privately owned sites. Municipalities incorporate green design into public spaces, buildings, and rights-of-way, while the private sector does the same for privately owned buildings, open spaces, and roofs. For developers, there is much to be gained: according to the ULI report, green infrastructure projects “create value for real estate projects by enhancing aesthetics, operational efficiency, and building user experience.”

The report examines several compelling examples:

  • Burbank Water and Power EcoCampus, Burbank, Californiaa campus for a community-owned utility site, which is the first power plant in the world to run on 100 percent recycled water;
  • Canal Park, Washington, D.C.—a neighborhood park developed by a public/private partnership and located on the site of a former D.C. waterway, with 95 percent of the park’s irrigation, fountain, toilet-flushing, and ice-rink water provided through rainwater recycling;
  • Encore!, Tampa, Florida—a 28-acre public/private, mixed-use, mixed-income development with an 8,000-square-foot stormwater retention harvesting system and a stormwater vault designed as the centerpiece of a public park;
  • Stonebrook Estates, Harris County, Texas [pdf]—a Houston-area residential development with a low-impact development approach that stood up to catastrophic flooding during the Tax Day floods of 2016.

These and similar green infrastructure projects offer benefits to all partners. For cities, they save money that would otherwise be spent on costly gray infrastructure that offers no community benefits (you can’t picnic in a storm sewer). There can often be cost savings for real estate developers, too, or opportunities for increased yield, because green infrastructure takes up less space than traditional stormwater approaches, such as detention ponds—freeing up more space for development. The study also found that green infrastructure can offer opportunities for placemaking and enhancing aesthetics, ultimately leading to a marketing advantage and the potential for unique market positioning.

Located in Boston, Massachusetts, the Atlantic Wharf is a 31-story office, retail, and residential development. It was called "Boston’s first green skyscraper," on account of its green and water management features: greenroof, rainwater cistern, reuse system, and use of native plants. (Image by Ed Wonsek, courtesy of the ULI)

Perhaps the best argument for public-private cooperation on green infrastructure is that neither sector, on its own, can manage today’s water challenges. And, in a changing climate, those challenges will only multiply. The ULI report quotes Jeffrey Seltzer, associate director of the Washington, D.C. Department of Energy and Environment: “When we look at the amount of work that needs to be done to manage stormwater in the District—the vast area of public and private land that needs to be retrofitted as well as the money and time involved—we realize that we can’t accomplish our water quality goals by only implementing public projects. Incentive programs that encourage voluntary retrofit are a huge piece of the puzzle.”

The good news is that the private sector is stepping up to that challenge and creating opportunities as a result.

Katharine Burgess is senior director of the Urban Resilience Program at the Urban Land Institute. An urban planner with experience working in the U.S., U.K., and Germany, she began her career managing design workshops after Hurricane Katrina.

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