That’s typical for new construction. Often the land only is assessed in the first year and both house and land assessed the second year, creating a spike. A lot of folks get got when it’s either not explained to them at closing or they don’t t pay attention. It really should be mandated that the estimated taxes on house+land be factored into mortgage for the first year to avoid those surprises.It's real tricky with a new house that doesn't have a history. Our taxes went from 5k to 8k.