The owners of two apartment buildings on Del Playa Drive in Isla Vista — 6663, shown with a new chainlink fence blocking access to the balcony, and 6653, next door to the right — must come up with engineering solutions following Sunday’s cliff collapse, county officials say. James Gelb, owner of 6653 Del Playa, says he plans to demolish the two apartments on the west end of his building, shown here, and two on the east end. A portion of the balcony from 6653 Del Playa is lying below the rock slide.

The owner of an Isla Vista apartment building where the cliffs fell into the ocean on Sunday, taking along a chunk of the balcony, had been awaiting an emergency permit this month to remove two apartments – but not the two nearest the collapse, county officials said.

The county notified James Gelb last summer that the edge of the bluff was within about 10 feet of the foundation underlying the east wing of his apartments at 6653 Del Playa, triggering a mandatory engineering solution, said Massoud Abolhoda, the county building and safety manager. As of last week, he said, the county was preparing to issue an emergency permit to Gelb for the partial demolition, or “cutback,” of part of the two east wing apartments nearest the bluff edge.

But – surprise! – the collapse on Sunday occurred near the west wing of the building, where the bluff edge was more than 10 feet from the foundation, Abolhoda said. As a result, he said, “We may reconsider our limits and thresholds for when we say we would have to cut back.”

Gelb said he now plans to demolish two west wing and two east wing apartments facing the ocean at 6653 Del Playa, losing a total of four out of nine apartments in the building. All are three-bedroom apartments with two baths. Thirty-five students out of 56 who were living at 6653 Del Playa have been evacuated. No one was injured during the collapse.

“That property historically has been rather safe,” Gelb said. “Nothing’s happened there in 50 years. I had no clue that this would happen. But when you own properties on a bluff, you’re going to take a chance.”

The collapse also undermined the balcony next door at 6663 Del Playa, where the owner is now required to come up with an engineering solution, Abolhoda said. In the meantime, he said, on county orders, the owner has erected a chain link fence, blocking access to the balcony.

Del Playa is one of the most densely populated streets in Isla Vista, the legacy of an era when setbacks were sacrificed for maximum buildout. In recent decades, at least 30 buildings on Del Playa have been cut back because of cliff erosion.

Between 1994 and 2006, Gelb said, he cut back 14 apartment buildings on the bluffs, in several cases converting them to houses. Gelb is one of the top five property owners in Isla Vista, and he owns 29 rental buildings on Del Playa, all but two of them located on the ocean side of the street.

County inspectors walk the Isla Vista beach and take measurements on the bluffs of Del Playa every summer, and they inspect properties after big storms, Abolhoda said. Since 2004, when the monitoring program began, he said, the county has ordered cutbacks in 15 buildings on Del Playa.

Spencer Brandt, a second-year student at UCSB and the director of the newly-created Isla Vista Community Services District, said most students are aware that the bluffs on Del Playa “are not the safest place on Earth.”

“But the ocean view is worth it to a lot of folks,” he said. “It’s as simple as that.”

A county inspection this week has revealed that almost all property owners on the ocean side of Del Playa need to move their blufftop fences back, Abolholda said. The fences must be at least five feet from the edge of the cliffs, he said. The required buffer is only five feet because the county wants to discourage students from sunbathing outside the fence, Abolhoda said.

The Isla Vista cliffs are composed of a top layer of sand and a bottom layer of highly fractured shale. Waves smashing against the cliffs can easily crack the rock, geologists say. According to property line surveys conducted by the county in 1965 and 1984, the bluffs are retreating at an average rate of six inches per year.

The actual bluff retreat rate is between two and 14 inches per year, and it varies from one address to the next on Del Playa, the surveys show. But it is “episodic,” meaning that sections of bluff that have not eroded much for years may collapse all at once, as occurred on Sunday.

A piece of balcony from Sunday’s cliff collapse in Isla Vista lies below the fractured shale that gets battered by high tides and winter storms. The bluffs on Del Playa Drive are retreating at a rate of up to 20 inches per year.

Some of the apartments on Del Playa are built on caissons, and these, too, have been exposed by wave action. Below one property, a broken-off caisson stands alone in front of the bluff face, holding up nothing but air.

Based on the surveys, the Isla Vista bluffs could be expected to retreat an average 25 feet during the next 50 years, taking out some valuable Del Playa real estate, said Art Sylvester, a UCSB professor emeritus of geology. But that’s a very conservative estimate, he said, because it is based on snapshots taken decades ago and doesn’t include the effects of sea level rise.

“What are the homeowners’ options?” Sylvester asked. “It’s a really bad problem out there. They can cut back their buildings. They can also pick the whole darn building up and move it closer to Del Playa. But all they’re doing is just buying time.”

There was once a sandy beach at Isla Vista, Sylvester said, but it gradually disappeared in the decades following the construction of the Bradbury Dam at Lake Cachuma in 1953. Now the waves attack the bluffs directly, especially during big storms and very high tides. The sand that once replenished beaches along the coast below the mouth of the Santa Ynez River at Surf is now silting up Cachuma, Sylvester said.

Just down the coast at Campus Beach, Sylvester has taken yearly measurements of bluff retreat since 2000. It averages five inches, he said, meaning that in about 35 years, it could undermine Lagoon Road, a major UCSB thoroughfare.

The demolition of four apartments at 6653 Del Playa is expected to begin this summer. In the meantime, seven of the evacuated students have moved into Tropicana Gardens, a residence hall on El Colegio Road owned by the University of California Regents, and seven more are likely to sign leases, said David Wilcox, executive director of Tropicana Student Living, the private management company that runs the property.

All 35 of the evacuated students have been offered lodging at Tropicana Gardens for the rest of the school year, Wilcox said. Those who accept would pay the same rent as on Del Playa, and they would receive a free meal plan worth about $2,500, he said, adding, “We want to come together as a community when a tough situation like this happens.”


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