It was only a few years ago that building sites had to be vacated in the autumn, only to come back into action in the spring, but now it is not unusual for the construction season to last the full twelve months in every branch of the sector. “When we are drawing up project schedules, we can now discount winter as a factor in them. We do take account of whatever the weather might throw at you, but any negative impact can now be reduced significantly,” explains Piotr Rusinek, the operational director of Arcadis’ buildings division. “Although construction work in winter is associated with additional expenses, it can be predicted to some extent and included in the investment costs. This additional item in the budget can still be lower than the contractual penalties the contractor might have to face if delays occur. For several years winter in Poland has clearly been on the move – November and December used to be the hardest months, but now they are January and