Foster City Fire on Sea Spray Lane: What We Know

By Sunday night the question bouncing around Peninsula group chats was some version of the same one. How does a building burn like that in Foster City, of all places?

It is fair to ask. Foster City is built on bay fill, cut through with man-made lagoons and wrapped in a levee. There is water on every side. No brush canyon, no eucalyptus ridge, none of the geography that makes an Oakland hills homeowner watch the October wind forecast. And a six-alarm Foster City fire still tore through a condominium building on Sea Spray Lane on Sunday afternoon.

What happened in the Foster City fire on Sea Spray Lane

Crews were called to 815 Sea Spray Lane, part of the Spinnaker Cove condominium complex, just after 2:30 p.m. on Sunday, August 2. KTVU reported that the fire went to four alarms and then to six by around 4 p.m. ABC7 reported that it started on the first floor and reached the third.

The building was evacuated, pets included, and several people were taken out of third-story windows. Foster City police asked everyone else to stay out of the area and keep their windows closed because of the smoke.

The bad moment came around 3 p.m. Fire Chief Matt Turturici said two firefighters working the third floor were briefly overcome by flames and lost track of each other, which triggered a mayday and a much larger response. Both were found safe, according to NBC Bay Area. The injury counts do not agree yet. KTVU and NBC Bay Area reported three firefighters hurt, one burned and two treated for smoke inhalation, while ABC7 put the number at four. Gaps like that are normal in the first day, and the department’s own tally is the one to trust once it lands. No residents were reported injured. The Red Cross set up at the complex clubhouse. The cause is still under investigation.

One thing worth knowing, because the alarm number gets read as a damage score. An alarm count is a request for more crews and more equipment, not a formal severity rating. Six alarms means a very large amount of people and apparatus got ordered onto a residential street on a Sunday afternoon. CBS was still reporting it as a four-alarm fire while it was climbing.

The lagoons are scenery, not a firebreak

Foster City’s water is the whole brand. It is also beside the point once a fire is inside a building. Flames moving through shared walls, floor cavities, and an attic do not care that there is a lagoon fifty feet away. San Mateo Consolidated Fire covers Belmont, Foster City, and San Mateo out of nine stations, and Sunday pulled in help from around the county.

Age matters more than geography here. Property records list 815 Sea Spray Lane as built in 1981, three stories, with elevators, secured parking, a clubhouse, two pools, and HOA dues around $630 a month. A building put up in 1981 was built to 1981 standards. Nobody retrofits an entire complex every time the code moves.

There is a reflex after a fire like this to get suspicious of stacked housing in general. I would resist it. The condos and apartments in this corner of Foster City are most of what is left under $2 million in a city where the median sits just above that, and the region needs more of them, not fewer. The honest lesson is about how older buildings are put together and maintained. It is not about how many homes sit on a parcel.

What a neighborhood score measures, and what it does not

815 Sea Spray Lane sits inside Metro Center, on its western edge, close enough to the line that plenty of neighbors would say Isle Cove. Metro Center is Foster City’s working core, the part with the Visa towers, the Costco, and the apartment and condo stock the rest of the city’s price map quietly leans on. It scores 3.4 out of 5 overall with us, eighth of eleven Foster City neighborhoods, with schools at 4.1 and amenities at 3.4. The city as a whole scores 3.5, with a median price near $2.05 million as of June 2026.

Now the part I want to be direct about. Metro Center’s Safety score is 2.6 out of 5, and that number is built from reported crime. It has nothing to do with fire. Neither does any other neighborhood safety rating you will find, ours included, and how Foster City neighborhoods rank on safety would not have told you one useful thing about Sunday. Fire exposure in a place like this is a building-level question. Construction year, wall and floor assemblies, sprinklers, alarms, wiring, roof, and how seriously an association takes maintenance. No neighborhood map answers any of that. You have to ask the building.

The paperwork nobody reads until a Sunday afternoon

If you own or rent in an older Bay Area condo building, the useful follow-up here is dull and worth an hour of your evening.

• Get the association’s master policy declaration page, not the one-page summary. The California Department of Insurance notes that the association generally insures the structure and common areas, and that where its responsibility ends and yours begins is set by your governing documents.
• Read your own unit-owner policy for loss of use. On condo policies that coverage is generally limited to 40 percent of the personal property limit. If you are out of your home for six months, that cap matters more than almost anything else in the policy.
• Ask about loss assessment coverage. When the association’s insurance falls short of the loss, owners get assessed for the gap, and this is the coverage built to absorb it.
• If you rent, renters insurance is the only thing covering your belongings and your hotel bill. The building’s policy is not covering your couch.

And keep receipts for every displacement expense. The state’s own guide is blunt about that part, because reimbursement runs on paperwork.

For the households at 815 Sea Spray Lane, the next stretch is hotel rooms, adjusters, and waiting to hear when the building is habitable again. Everyone else on the Peninsula gets the cheap version of the lesson.

We built Houseberry around looking at the area before the address, because the neighborhood usually decides how a home actually lives day to day. Sunday is the useful exception to our own rule. A lagoon view, a 4.1 school score, and a Costco you can walk to tell you plenty about life in Foster City’s neighborhoods, and nothing at all about what is inside your walls. That answer sits one level down, in the building, and you have to go get it yourself.

Sources

• ABC7 News, 6-alarm building fire on Sea Spray Lane in Foster City
• KTVU FOX 2, firefighters injured at Foster City apartment complex fire
• NBC Bay Area, firefighters battle condominium complex fire in Foster City
• CBS San Francisco, Foster City crews battle fire at Sea Spray Lane
• Foster City Police Department update on the 815 Sea Spray Lane fire
• San Mateo Consolidated Fire Department, About Us
• Compass property record, 815 Sea Spray Lane, Foster City
• California Department of Insurance, Residential Insurance: Homeowners and Renters