Benzinga and Yahoo Finance LLC may earn commission or revenue on some items through the links below. A recent report from real estate data firm Redfin says that San Francisco housing costs have returned to "normal" levels, but unfortunately, normal doesn't mean affordable. That's because Redfin's baseline for "normal" was the U.S. housing market in July 2018. Although its report doesn't include home prices, historical data from Zillow's home value index shows that the average home in San Francisco was wor ...