What's the best season to build a house?

In my opinion, spring and early autumn are ideal periods for construction. In spring, the earth dries out after winter, the soil becomes more compact and stable, which is really important for the foundation. I noticed this when I started setting up farm buildings last year - working with the soil in spring was a lot more convenient than during the mud season. Early autumn is pretty good too: there's no exhausting heat that slows down the pace of work in the middle of summer, and the rainfall is usually more predictable.

I'd rule out summer if possible. The heat not only wears out the workers, but also affects the quality of cement and other materials. Winter is just critical - frozen soil, constant moisture, poor conditions for mortar to set. Plus a lot of time goes into clearing snow and ice. Autumn is good until around October, then the rains become a problem.

The main rule is to choose the season so that you manage to finish the main stages (foundation, walls, roof) before the cold sets in. I started building at my dacha in April, and by the end of September I'd already closed the roof - happy with how it turned out. If there's no rush, spring and autumn definitely win out.