Raising the stakes with interest-only mortgages

updated 8:08 a.m. ET June 7, 2005

SAN FRANCISCO - Once a frustrated renter, Chris Economou is now a happy homeowner, enjoying a splendid view of San Francisco and an $80,000 increase in his property's value since he bought the one-bedroom condominium for $435,000 a year ago.

He credits his good fortune to an interest-only mortgage, an increasingly popular — and risky — loan that enables borrowers to lower their monthly payments enough for several years to afford rapidly escalating home prices in expensive markets like the San Francisco Bay area. Economou estimates he saves $1,000 a month by having his interest-only mortgage instead of a traditional 30-year fixed rate loan.

"I'd still be looking at renting for a long time," if not for that mortgage, said Economou, 33. "Home prices are so high that it's about the only way young people like me can get into the market."

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Built on the assumption that home prices will continue to rise, interest-only mortgages represent a gamble that many home owners accustomed to conventional fixed-rate loans would never take. Unlike conventional 30-year mortgages, interest-only loans typically don't require payments toward the principal for three to seven years, substantially lowering the costs of entry and making it easier to qualify for the loan.

But the financial firepower of interest-only mortgages is affecting all home owners. They are further elevating already lofty housing prices, a trend that's raising fears of crash that could plunge the economy into a recession.

"When this market adjusts, it's going to be painful," said UCLA economics professor Edward Leamer, who has been warning of a California housing bubble for three years. "Borrowers are getting in over their heads, and lenders are too."

The growth of interest-only mortgages reflects a fundamental shift in the way many Americans think of their homes. Rather than places to grow old in, they see homes as part of their investment portfolios — in fact, a much better bet than the stock market in recent years. In California alone, homeowner equity has grown by a whopping $1 trillion since 2000, according to the California Building Industry Association.

Even borrowers who can afford the higher payments of a conventional mortgage are opting for interest-only loans, so they can free up more cash to invest in retirement plans, college education funds or other home purchases, said Mark Carrington, director of information products for LoanPerformance, a mortgage research firm.

"Borrowers are becoming much more educated and smarter about what a mortgage really is," Carrington said. "They are using it as just another investment tool in their overall financial plan."

San Francisco accountant Patrick Duffy advises his clients to use interest-only mortgages, unless they plan to live in a home for at least seven years. "If you are only going to have it a short time, why waste your money" on the higher monthly payments required under a conventional 30-year mortgage, reasons Duffy, who financed both his homes with interest-only loans.

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