A new study suggests that Philadelphia's 40,000 vacant buildings reduce home values by as much as $8,000 and cost the city $20 million per year in maintenance.
The chronic problem is complicated by ownership issues, says Catherine Lucey. Various city agencies own only 25% of the properties. Some of the remaining 75% go to public auction, but many are left to decay.
Mayor Michael Nutter's administration has employed anti-blight programs to combat the problem with minimal success but is also considering models from other cities, Lucey writes:
"One example that has been heralded is in Genesee County, Mich., home to Flint, where the government set up a land bank that takes control of abandoned and tax-foreclosed properties and decides the best use - be it to sell the property to a developer, to give it to a community group or to maintain the land itself."
FULL STORY: Abandoned properties have reduced city home values by an average of $8,000, study finds

National Parks Layoffs Will Cause Communities to Lose Billions
Thousands of essential park workers were laid off this week, just before the busy spring break season.

Retro-silient?: America’s First “Eco-burb,” The Woodlands Turns 50
A master-planned community north of Houston offers lessons on green infrastructure and resilient design, but falls short of its founder’s lofty affordability and walkability goals.

Delivering for America Plan Will Downgrade Mail Service in at Least 49.5 Percent of Zip Codes
Republican and Democrat lawmakers criticize the plan for its disproportionate negative impact on rural communities.

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Balancing Bombs and Butterflies: How the National Guard Protects a Rare Species
The National Guard at Fort Indiantown Gap uses GIS technology and land management strategies to balance military training with conservation efforts, ensuring the survival of the rare eastern regal fritillary butterfly.
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
EMC Planning Group, Inc.
Planetizen
Planetizen
Mpact (formerly Rail~Volution)
Great Falls Development Authority, Inc.
HUDs Office of Policy Development and Research
NYU Wagner Graduate School of Public Service