Philadelphia Goes High-Tech to Monitor Vacant Properties

The city of Philadelphia has deployed high-tech sensors and a new statistical model in its ongoing fight against the blight and health problems that follow vacant and abandoned properties.

1 minute read

December 18, 2016, 9:00 AM PST

By James Brasuell @CasualBrasuell


Philadelphia

Gary Paul Lewis / Shutterstock

Claudius Vargas reports on the new high tech methods implemented by Philadelphia's Department of Licenses and Inspections (L&I) to monitor vacant properties.

"L&I has developed a high-tech model to determine which properties might be vacant and imminently dangerous before an inspector sets foot on the property," writes Vargas.

The model is built first with high-tech data collection. The city "has new light detection and ranging (LIDAR) technology, which allows inspectors and L&I staff to look at aerial shots of homes and determine which might have collapsing roofs," explains Vargas. "The system, using laser imaging, shows a color range to signal height disparities across a property's roof."

Once that data, and others, are collected, L&I staff use a scoring system between 1 and 49 to rate the safety of vacant and abandoned properties—the higher the number, the more dangerous the property.

Tuesday, December 13, 2016 in The Philadelphia Inquirer

Young Professional

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban and Environmental Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban and Environmental Planner

Get top-rated, practical training for planners

Overlapping highways

The state-sanctioned urbicide of Austin

People don’t kill cities. Freeways do.

September 8, 2026 - Benjamin Schneider

The Hoover Dam blocking the Colorado River. The river's water level is noticeably low. The cliffs surrounding the blue water are brown and jagged.

US to reduce Colorado River water deliveries to Mexico

A new Colorado Treaty amendment reduces Mexico’s Colorado River water allocation by 250,000 acre feet.

September 11, 2026 - The Arizona Republic

Skyscrapers in Jersey City.

New Jersey’s second-largest city bans standalone data centers

Jersey City will continue to allow co-location facilities, such as those meant for research institutions that store their own data.

September 4, 2026 - The Cool Down

A New Jersey train approaches people waiting at the station.

Amtrak not solely to blame for New Jersey commuter rail's unreliability, report finds

A new study from the Garden State Initiative found that NJ Transit’s budget grew 20% across a 4 year period, but reliability declined significantly over the same period.

6 hours ago - Mass Transit

A tall, gray power plant billows smoke into a blue sky.

EPA erases limits on planet-warming pollution from power plants

Under Monday’s plan, power plants would still have some limits on how much mercury, arsenic and other contaminants they can emit.

7 hours ago - New York Times

A white RAPID bus. The lower half is light blue, and says RAPID in purple text. The bus is half visible, appearing from the left side of the image.

Phoenix announces new on-demand transit service, more frequent RAPID buses

Both new services will launch in October, and are part of Phoenix's Project Effective Access Solutions for Easing Congestion.

September 15 - KJZZ

FREE Course: Walkable City 1: Why Walkability?

After describing his path towards focusing on walkability as the essence of good planning, Jeff Speck marches through his five principal reasons for making more walkable places.

Reinventing Malls: Planning Alchemy—Turning Gray Fields Into Gold

The course focuses on the opportunities and imperatives that shape reinvention of mall sites.