Another little publicised report from Berkley National Labs in the US (August 2013) that examined 50,000 house sales in nine states and included more than 1,000 within a 1 mile radius concluded…. no effect.
“A set of robustness models adds confidence to our results. Regardless of model specification, we find no statistical evidence that home values near turbines were affected in the post-construction or post-announcement/pre-construction periods
Previous research on potentially analogous disamenities (e.g., high-voltage transmission lines, roads) suggests that the property-value effect of wind turbines is likely to be small, on average, if it is present at all, potentially helping to explain why no evidence of an effect was found in the present research.“