Limits on homes push up prices

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Escalating prices that have made houses unaffordable for many people in Washington are mostly the result of homeowners using political and regulatory means to block construction of new housing, economic studies show.

Washington home prices continued to soar last month despite a slowdown in sales, with gains of 21.5 percent and 18 percent over November 2004 in the District and Montgomery County, respectively, the Greater Capital Area Association of Realtors reported this week.

It now costs $618,692 to buy an average-priced home in the District, and $560,327 in Montgomery County. Prices in Northern Virginia also have maintained breathtaking heights, among the highest in the country, despite some slackening of sales.

The remarkable run of record housing sales and prices since 1998 has become a major puzzle and topic among economists. The high prices have put homeownership out of reach for many young people and low-income households hoping to break into the market.

Economists increasingly are concluding that the shortage of affordable housing in Washington and other major U.S. cities on the East and West coasts is a result more of man-made restrictions on development than high construction costs or other market forces.

"It simply takes too long and is too expensive to move through the development process," said Mark Vitner, senior economist at Wachovia Securities, pointing at "smart growth, slow growth and no growth" movements in many of the same areas where the population and demand for housing are growing the fastest.

What many economists have been proclaiming as a "bubble" in Washington and other high-cost areas can be mostly explained by the restrictions on development, combined with a rush to homeownership by renters taking advantage of low interest rates, he said.

The restrictions have mounted as homeowners have grown more powerful and more willing to use their power to stop or greatly restrict development in their neighborhoods through the political and regulatory processes and the courts, according to a study published recently by the National Bureau of Economic Research.

Since 1970, Washington and other coastal cities where housing prices have exploded have seen "a significant increase in the ability of residents to block new projects," transforming vast swaths of the cities into "homeowners' cooperatives" that are no longer open to growth, said Edward L. Glaeser, Harvard economist and one the study's authors.

The study encompassed trends in Washington and 315 other U.S. cities since the 1950s. It found that the explosion in house prices ironically has occurred in areas where the price of housing already was high, making homeownership increasingly unaffordable while the cost of housing remained reasonable and affordable throughout the vast interior of the country.