In my area, a lot of the houses are in mid-1950s to late-1980s subdivisions, and were born at around 1,000 to 1,400 square feet. If it was built with 1,000 square feet, they list it at 2,000 square feet. Usually you can find out the year built, square footage, current assessed value, and current or upcoming property tax bill. Google things like \"worcester county tax records\" or \"worcester county appraiser\" or even \"worcester county GIS\" to find their site. A few areas may still try to charge you to look at the tax records.