San Diego

A woman biking on a narrow bike lane next to a truck.

Op-ed: Federal austerity is funding what kills us

Tracing the backstory of the last year of cuts to multimodal transportation reveals an alarming definition of road safety that only serves one mode.

September 15, 2026 - Sam Orndorff

Signs in English and Spanish warn of sewage contamination on hiking trail and beach near Tijuana River.

San Diego County to build treatment plant for Tijuana River sewage pollution crisis

The river has carried millions of gallons of untreated sewage into San Diego’s South Bay region.

September 4, 2026 - NBC San Diego

A rendering of the planned sports arena at Midway Rising. A crowd of people is pictured to the right of the arena.

California lawmakers approve bill that would shield housing, sports arena project from environmental lawsuits

The bill passed the Assembly with 72 votes out of a possible 80 and later cleared the Senate on a unanimous vote.

September 1, 2026 - Cal Matters

Aerial of graded lot next to highway in Mission Valley, California.

San Diego State intergenerational housing project will bring 250 homes for older adults to campus

The project is part of the university's Mission Valley campus that includes 4,600 housing units.

August 13, 2026 - Times of San Diego

Tan suburban single-family houses for sale in San Diego, California

Just 17% of San Diego households can afford the city's $1M+ median home prices

The city is becoming increasingly unaffordable to prospective homebuyers.

August 6, 2026 - NBC San Diego

Red San Diego Trolley train at station in San Ysidro, California.

San Diego could raise fares for North County buses and trolleys

A SANDAG committee voted to raise single-ride fares from $2.50 to $3.

July 20, 2026 - Times of San Diego

Border crossing to Mexico at San Ysidro, California.

San Diego approves 5,000-home plan near Mexico border

The rezoning makes way for over 5,100 new housing units near San Ysidro.

July 12, 2026 - The San Diego Union-Tribune

San Diego skyline.

San Diego establishes $8.5M affordable housing fund

The new fund will let local nonprofits and developers apply for funding to shore up the city's affordable housing stock.

July 2, 2026 - KPBS

Red San DIego trolley at platform with Spanish-style cupola visible in background.

San Diego wants to limit upzoning law to just 16% of transit-adjacent parcels

The city's planning director says some areas are unfit for immediate upzoning due to a lack of resources or hazards such as wildfire risk.

May 6, 2026 - The San Diego Union-Tribune

Crosswalk in San Diego with Gaslamp District decorative arch sign over street.

San Diego budget axes multimodal team at DOT

The budget scales back funding for some bike lane and traffic safety projects that are already in the works.

April 20, 2026 - Streetsblog California

Red San Diego trolley seen blurred against an old brick building in downtown San Diego, California.

San Diego Transit Awarded $60 Million for Trolley, Electric Buses

The funding will support the electrification of San Diego’s bus system and safety and efficiency enhancements on the Orange Line trolley.

March 30, 2026 - Times of San Diego

View of downtown San Diego high-rises from water.

San Diego School District Plans to Build 3,000 Homes for Employees

The district wants to offer affordable housing to 10 percent of its staff by 2030.

March 23, 2026 - Times of San Diego

Neon sign over street for historic Gaslamp Quarter district of San Diego, CA at dusk.

San Diego to Lower Speed Limits on 20% of its Streets

The city council approved reduced speed limits on streets designated as high-risk corridors, school zones, and other areas as part of its Vision Zero strategy.

March 19, 2026 - NBC 7 San Diego

Google street view of protected bike lane on street in San Diego, California.

After San Diego Installed a Protected Bike Lane, Ridership More Than Doubled — and Hasn’t Stopped Growing.

“When people feel safe, they ride.”

February 24, 2026 - Momentum Magazine

Elemtary school in San Diego, California.

San Diego Wants to Lower Speed Limits in School Zones, High-risk Corridors

New state laws allow cities to reduce speed limits in high-risk zones.

February 22, 2026 - NBC San Diego

Red San Diego light rail train with people visible inside.

San Diego Regional Transportation Plan Shifts Away From Big Projects to Focus on Improving Existing Infrastructure

SANDAG’s 2025 Regional Plan scales down plans for new rail lines in favor of expanding rapid bus service.

February 13, 2026 - KPBS

Close-up of razor wire at top of fence against blue sky.

San Diego Sues DHS, DOD Over Razor Wire Near Mexico Border

The city says U.S. Marines trespassed on city land to install fencing that damages sensitive habitat in an area designated as conservation land.

February 2, 2026 - CALmatters

Two people with backpacks on crossing a crosswalk in front of a yellow school bus in San Diego, California.

San Diego School District Backtracks on Teacher Housing Proposal

After receiving more than a dozen proposals from developers, the district’s board failed to reach a decision or issue further guidance to potential builders.

January 1, 2026 - KPBS

Red San Diego trolley car.

San Diego Trolley Cuts Late Trips in Half With New Copper Line Service

A new extension adds a transfer for some riders, but has vastly improved the system’s overall performance.

December 30, 2025 - San Diego Union-Tribune

San Diego bus picking up passengers at a stop on a sunny day.

San Diego Transit Ridership Rebounds While Fiscal Cliff Looms

The city’s buses and trolleys are close to pre-pandemic ridership numbers but face a $120 million deficit that could require service cuts.

December 8, 2025 - The San Diego Union-Tribune

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.