Since June, about 30 evictions have been blocked, according to a nonprofit housing advocacy group known by its initials, P.A.H. — more than twice the rate than before. And eviction protests are taking place in more cities.

This month, the government and the opposition in Parliament, no doubt looking toward elections next year, issued statements saying they would overhaul the foreclosure laws.

“We are proud that today our demands have become a popular clamor,” said Ada Colau, a human rights lawyer with P.A.H. “This has forced the government to react, despite the pressure from the banks.”

When Spanish mortgage debtors cannot make their payments, Spanish law denies them two ways out that are common elsewhere: they cannot simply hand the keys back to the bank and walk away, and they cannot discharge their debt in bankruptcy. They remain personally liable for the full amount of the loan after foreclosure, and when penalty and interest charges and tens of thousands of dollars in court fees are counted, they can end up on the street facing a mountain of debt.

Housing advocates would like to see Spain move to a system that more resembles that of the United States. But the new proposals do not go nearly that far. Most are meant only to ease the current conditions. For instance, banks would still be allowed to take a percentage of a debtor’s salary, but not quite so large a percentage. Similarly, if no one appears at a foreclosure auction and the bank buys the property itself, it will have to pay 60 percent of market value, up from 50 percent under current law.