San Diego

Small light colored backyard dwelling unit.

San Diego County ADUs Account for Over 30% of New Housing Permits

A now-expired incentive helped boost ADU applications since 2021 while larger housing projects have stalled.

October 2, 2025 - Governing

A red San Diego trolley car stopped at a platform with people waiting in San Ysidro, California near the Mexico border.

1,000 New Homes Sprouting Around San Diego Trolley Station

Multiple projects, helped along by city and state incentives, will densify the area around the Palm Avenue station.

August 18, 2025 - The San Diego Union-Tribune

Poway, California

Extreme Heat Prompts Trail Closures and Safety Warnings in San Diego

San Diego County has closed three hiking trails for August due to extreme heat, urging hikers to stay safe with proper planning, hydration, and early starts.

August 4, 2025 - CBS8

Black and white 25 mph speed limit sign.

San Diego to Lower Speed Limits on 11 Streets

A 2022 state law allows cities to reduce speed limits for safety reasons rather than relying on average traffic speeds to dictate speed limits.

August 3, 2025 - CBS 8 San Diego

SMall backyard cottage ADU in San Diego, California.

San Diego Votes to Rein in “Towering” ADUs

City council voted to limit the number of units in accessory buildings to six — after confronting backyard developments of up to 100 units behind a single family home.

June 18, 2025 - NBC San Diego

White accessory dwelling unit in backyard of small grey home in Seattle, Washington.

ADUs for Sale? San Diego Could Legalize Backyard Condos

As one of 25 proposed amendments, San Diego may soon allow accessory dwelling units to be bought and sold as individual homes.

June 1, 2025 - KPBS

People biking along beach path with moored ship in San Diego, California.

San Diego Adopts First Mobility Master Plan

The plan provides a comprehensive framework for making San Diego’s transportation network more multimodal, accessible, and sustainable.

May 2, 2025 - SD News

Western coyote looking at camera in grassy field.

San Diego County Sees a Rise in Urban Coyotes

San Diego County experiences a rise in urban coyotes, as sightings become prevalent throughout its urban neighbourhoods and surrounding areas.

April 14, 2025 - Fox 5

Rendering of proposed greenway design for downtown San Diego street.

San Diego Swaps Parking Lane for Kid-Friendly Mini Park

The block-long greenway will feature interactive play equipment and landscaping.

April 7, 2025 - The San Diego Union-Tribune

Front of San Diego High School with students milling around.

San Diego School District Approves Affordable Housing Plan

The district plans to build workforce housing for 10 percent of its employees in the next decade and explore other ways to contribute to housing development.

March 30, 2025 - The San Diego Union-Tribune

Aerial view of single-family homes with swimming pools in San Diego, California.

San Diego to Rescind Multi-Unit ADU Rule

The city wants to close a loophole that allowed developers to build apartment buildings on single-family lots as ADUs.

March 9, 2025 - Axios

Bird's eye view of half full parking lot at night.

Safe Parking Programs Help People Access Housing

The safety and stability offered by Safe Parking sites have helped 40 percent of unhoused San Diego residents who accessed these programs get into permanent housing.

March 5, 2025 - Maui Now

The historic San Diego City and County Administration Building in Southern California.

San Diego Housing Assistance, Homelessness Programs Facing Major Cuts

Programs supported by federal and state programs are on the brink of losing funding, putting thousands of homeless and at-risk residents in jeopardy.

January 22, 2025 - Governing

Yellow San Diego Unified School District school bus.

San Diego School District Could Accelerate Workforce Housing Program

A proposal to build housing on five district-owned properties could yield 1,000 housing units for low- and moderate-income district employees.

December 10, 2024 - Governing

Close-up of "LOOK" sign on sidewalk with one pedestrian walking away.

Report: San Diego’s Lack of Progress on Vision Zero Mirrors Nationwide Trend

The city’s efforts to improve road safety have been outweighed by other factors such as larger vehicle sizes.

November 19, 2024 - KPBS

Small, colorful homes on small lot in San Diego, California.

San Diego Begins to See Results of State Housing Law

Homeowners in Southern California are starting to take advantage of a state law that allows lot splitting and higher density in residential areas in an effort to increase housing supply and affordability.

November 1, 2024 - KPBS

Dense neighborhood of homes on a hillside on the water in San Diego, California.

San Diego’s Short-Term Rental Ordinance, One Year in

Since enacting a spate of regulations on short-term rentals, the city has removed over 7,000 illegal listings from online platforms.

July 23, 2024 - The San Diego Union-Tribune

Small backyard cottage with gabled roof in San Diego, California.

San Diego Sees Continued Growth in ADU Permits

Recent changes to regulations have made it easier and more affordable for homeowners to build ‘granny flats,’ and San Diego’s housing stock is benefiting.

June 20, 2024 - Axios San Diego

Silver and blue train passing by on track at the edge of Pacific Ocean in San Clemente, California.

Storms Sever California Rail Line—Again

The coast-hugging rail corridor linking Los Angeles and San Diego faces an uncertain future as mudslides once again force part of the line to close.

February 6, 2024 - Smart Cities Dive

Arched entrance sign over street to San Diego's historic Gaslamp Quarter with slogan "historic heart of San Diego."

San Diego to Update Historic Preservation Program

The city wants to identify new areas for preservation while streamlining processes to promote adaptive reuse of historic properties.

January 24, 2024 - Times of San Diego

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.

Top Books

An annual review of books related to planning.

Top Schools

The definitive ranking of graduate planning programs.

100 Most Influential Urbanists

The who's who of urbanism, according to Planetizen readers.

Urban Planning Creators You Should Know

A short list of voices on social, video, and podcasting platforms.