Board Thread:Questions and Answers/@comment-26069603-20151126005500/@comment-27124559-20151130083602

I don't think all decorations increase in price, but I'm not sure. I think it's only decorations that you buy (not rewards) that increase in price and mostly fences and paths or seasonal decorations?

https://supercell.helpshift.com/a/hay-day/?p=web&s=general-gameplay&f=why-does-the-cost-of-decorations-increase