Colorado home values shot up across the state during the housing boom. Now county assessors are trying to brace homeowners for new valuations that could lead to higher property taxes. 

Property owners in Chaffee, Lake and Park counties will see residential median increases of 40 to 60%. 

Property owners have until June to appeal their valuation. 

There are things local counties can do to help. The mill levy, or the taxed rate based on your property assessment, is set for this December, with hearings in the summer and fall. Assessors encourage people to pay attention to county budget plans.