Is there any evidence of how much a new powerline might devalue my property?
15.1. Yes, but naturally it depends on many factors: location, location, location and all that. There have been reports of limitations in availability of mortgages and business loans. There seem to be two main reasons: visual impact and health concerns, which affect different properties in different ways. 15.2. Anecdotal cases include devaluation of up to 50% or more in extreme cases. Academic research suggests up to 20% might be expected within 100 metres of a powerline, depending on the type of property and situation, with over 30% for some detached houses. The proximity of a pylon can have a more significant effect than the line alone. 15.3 Revolt maintains a Note on property devaluation on the web site, with references for further details and advice.