[3798j]

Pennsylvania is a bit weird in its approach to property valuation. "Almost one-third of the state’s 67 counties haven’t completed a complete countywide reassessment of property values in more than 25 years, according to the state’s Local Government Commission.
Twelve of them last did a complete reevaluation of property values in the 1970s and three counties — Butler, Franklin and Lackawanna — last did their reassessments in the 1960's."

At any rate, from a tax view it'll be a crap shoot as to how it comes down. More importantly, you're going to love it and will have wished you had done it earlier. Built mine 11 years ago (with lift)...it's a wonderful place to work...and play.