Oakland & the Inner East Bay
The county's oldest and most varied stock: downtown towers, century-old warehouses, mixed-use over ground-floor retail, lab buildings and the Port of Oakland. Oakland's industrial market is about 34.5 million square feet, and its downtown office market has some of the highest vacancy in the region. Emeryville and Berkeley form the East Bay lab cluster, with new buildings sitting empty as demand cooled.
This is where the county's local programs overlap most: soft-story and masonry ordinances, Measure W, and transfer taxes. Older mixed-use buildings with rated corridors carry an annual fire door inspection obligation under NFPA 80. The flat, formerly industrial ground near the Port and on the island of Alameda, including the former Naval Air Station at Alameda Point, makes Phase 1 ESA work substantive.
Central County
Warehouses, manufacturing and 1960s to 1980s tilt-up along I-880. Hayward is the second-largest industrial submarket in the East Bay at about 44 million square feet; San Leandro and San Lorenzo add another 25 million. Small-tenant office here is tight, with vacancy around 5% in Hayward and San Leandro, a long way from the towers downtown.
Big flat roofs make drone roof thermography efficient, heavy equipment loads make electrical infrared a sensible buy, and fault creep through Hayward shows up in the slabs and walls a commercial inspection examines. A data center is under construction at Diablo Park in Hayward.
Fremont & Newark
Fremont is Alameda County's second-largest city and, for industrial property, its strongest market. Brokers treat Fremont and Newark as part of Silicon Valley rather than the East Bay, and the numbers show why: about 37 million square feet of industrial and warehouse space near 4% vacancy, with Fremont's industrial space at 2.9% in the third quarter of 2026. The Tesla factory anchors a cluster of advanced manufacturing that includes Quanta, which leased two large buildings in Newark, and Wistron, which bought a Warm Springs building for $120 million. A Milmont Drive building sold for $132.3 million, about $495 per square foot.
Buildings like these run production lines, cleanrooms and test equipment that cannot tolerate an unplanned outage, which is the textbook case for annual electrical thermography. Older R&D flex buildings being re-tenanted for manufacturing often need a property condition assessment before the new tenant's equipment arrives, and a check that the electrical service can actually carry it. Fremont's office market is softer, around 20% vacant, and Newark's higher still.
Tri-Valley
Office parks, retail centers, distribution and research space in the hottest, driest part of the county. Tri-Valley office was 18.5% vacant in mid-2026, and Pleasanton Class A hit 41% at the end of 2025, which is why owners there are converting office to housing, mixed use and medical, and why PG&E bought a 209,000 square foot Stoneridge building for its own use.
Summer highs in the 90s and a rain shadow give some of the best thermal loading in the region for infrared roof scans, and aging 1980s office parks are due for roof, HVAC and accessibility work at the same time. A cost-to-remedy report is often what decides whether a building stays office.