Lawrence Berkeley National Laboratory completed a study in 2013 that used data collected from the sale of more than 50,000 homes in 27 counties, in nine different states. These homes were within 10 miles of wind projects, with 1,198 sales within one mile and 331 within half of a mile. This study also used data from before a project; the post-announcement, pre-construction period; and during operation. The study found no evidence of an effect on prices of homes in proximity to wind turbines. While wind farms appear to have no notable effect on property values, siting remains an important piece of wind energy development. Developers, along with county and community officials, must identify ways to address concerns and mitigate impacts from new development, while allowing landowners to host wind turbines, if they choose to.