Office Conversions Have Increased Every Year This Decade

Since the pandemic, office vacancy rates remain high, leading many cities to adjust zoning codes to accommodate adaptive reuse.

2 minute read

June 26, 2025, 10:00 AM PDT

By Diana Ionescu @aworkoffiction


Looking up at high-rise office buildings in New York City.

New York City had the highest rate of office conversion in the country thanks in part to its large market and recently enacted 'City of Yes' zoning reforms. | dell / Adobe Stock

U.S. office inventory is dropping as some buildings are converted to housing or other uses while others are demolished, according to CBRE data.

Joe Burns explains the trend in SMart Cities Dive. “Among the 58 markets CBRE tracked, it expects 12.8 million square feet of space to be converted to other uses this year and an additional 10.5 million square feet to be demolished. The firm estimates just 12.7 million square feet of new office supply.” Office conversions in the pipeline this year amount to 1.9 percent of total office inventory, and the number of conversion proposals has increased every year since 2020.

Older buildings, which can be less suitable for conversion, make up over half of demolitions and 35 percent of conversions. “Building size and location, rising construction costs, less labor availability and persistently high interest rates also factor into conversion or demolition decisions, adding further impediments, CBRE says.”

Conversions of office buildings to life science uses peaked during the pandemic, but have since dropped. Now, hotels make up the second most popular type of office conversion at 8 percent.

Cities with zoning reforms that support adaptive reuse are seeing high rates of conversions. “Manhattan currently has 10.3 million square feet of conversion space underway or planned, leading the nation, CBRE says,” in part due to ’City of Yes’ zoning reforms. San Francisco, where the office vacancy rate is 28.4 percent, recently created a downtown revitalization financing district to incentivize conversions.

Thursday, June 26, 2025 in Smart Cities Dive

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.

September 15 - 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.

September 15 - 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.