Working Toward Open Data for Building and Construction Permits

The potential of a standard, easily accessible data set tracking building and land use permits could completely change the way the public interacts with changes in their community.

1 minute read

August 5, 2015, 1:00 PM PDT

By James Brasuell @CasualBrasuell


Emily Badger writes about a wave of tech innovations that will democratize access to information about development projects:

"Imagine if you had a location-aware app that could call up the details of a construction site as easily as Redfin can show you the nearest for-sale home….. Imagine if Zillow could tell you that cute add-on to the row home you like was never inspected by the city. Or if economists could use remodeling permits to forecasts gentrification while it was still possible to help long-time residents stay in their homes."

As Badger reports, a partnership between Zillow, Accella, and other partners (including local governments in Tampa, San Diego, and Chattanooga), is working toward realizing those possibilities by developing "a common standard all cities can use to publish data about building and construction permits." The website for the standard, known as BLDS, provides more details about the current partners, and their progress, on the project.

Such a standardized data has multiple potential applications—all with the ability "to change how consumers, researchers and cities themselves understand the built world around us," according to Badger.

Modeling that potential in a specific development market, Seattle recently launched a platform to track real-estate projects. For a company like Zillow to provide a platform, however, it would require more cities to come on board.

Tuesday, August 4, 2015 in The Washington Post - Wonkblog

"Planetizen federal action tracker" logo superimposed over black and white image of US Capitol dome.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

October 28, 2026 - Zachary Whalen

A car drives through a puddle, making a large splash. Rain pours down.

California plans to bury El Niño’s downpour

If the state plays its cards right, it may be able to store a billion acre-feet of El Niño’s water in aquifers.

October 28, 2026 - Grist

Lake Powell with much of the water evaporated.

Desperate measures: Advocates weigh draining Lake Powell to fill Colorado River

Draining the reservoir could reduce evaporation losses by a couple hundred thousand acre-feet.

October 30, 2026 - Yale Environment 360

Mamdani behind a microphone, in front of a snowbank

Mamdani’s pied-à-terre tax survives legal challenge

A panel of judges found that the plaintiffs failed to demonstrate injury as a result of New York City's implementation of the tax.

November 6 - CNN

A road in north eastern Nebraska with power lines on either side, and grassy fields.

Eastern Nebraska is running out of electricity

Data centers and electrification are straining eastern Nebraska’s grid, throttling economic development.

November 6 - Grist

People board a bus in Seattle.

Seattle passes record-breaking transit services expansion

Proposition 1 will double the city’s transit tax to add 95,000 more bus trips and preserve 180,000 bus trips annually.

November 6 - KOMO News

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.