Prices have fallen some 33 percent since the market began its collapse, greater than the 31 percent fall that began in the late 1920s and culminated in the early 1930s, according to Case-Shiller data.

The news comes as the Federal Reserve considers whether the economy has regained enough strengthto stand on its own and as unemployment remains at a still-elevated 9.1 percent, throwing into question whether the recovery is real.

"The sharp fall in house prices in the first quarter provided further confirmation that this housing crash has been larger and faster than the one during the Great Depression," Paul Dales, senior economist at Capital Economics in Toronto, wrote in research for clients.

According to Case-Shiller, which provides the most closely followed housing industry data, prices dropped 1.9 percent in the first quarter, a move that the firm interpreted as a clear double dip in prices.

Moreover, Dales said prices likely have not completed their downturn.

"The only comfort is that the latest monthly data show that towards the end of the first quarter prices started to fall at a more modest rate," he said. "Nonetheless, prices are likely to fall by a further 3 percent this year, resulting in a 5 percent drop over the year as a whole."

Prices continue to tumble despite affordability, which by most conventional metrics is near historic highs.