Stan has a summer beach cottage that he has owned for many years. The cottage is valued at $ 125 comma 000. This​ year, Stan spends ​$250 on paint and ​$600 on​ trees, and then paints the exterior of the cottage and plants the trees himself. If he had hired a professional​ painter, it would have cost ​$1 comma 000 to paint the cottage​ (not including the cost of​ paint), and if he had hired a professional​ landscaper, it would have cost ​$450 ​(not including the cost of the​ trees) to do the planting. How much does Stan​'s improvements to the cottage add to GDP this​ year?