Trulia rolls out valuation tool nationwide

'Trulia Estimates' lets homeowners add, edit property details

Online real estate search and marketing firm Trulia is now generating automated property valuations for 50 million off-market homes, using a system that allows homeowners to add or edit property characteristics that can affect values.

"Trulia Estimates" use an automated valuation model (AVM) that takes into account recent sales information for other homes in the area, and property characteristics taken from public records including the number of bedrooms and square footage.