Shower him with his favourite gifts for a year or two.
Gotz upgrades houses
In order for Gotz to begin working for you again, Lu must raise his friendship. He likes honey, so you can give him that and other gifts that he likes. After you have gained enough friendship, he will regain his creativity.
Gotz lives in mineral town on Harvest Moon DS. He builds animal sheds on your farm. The only way you can contact him is via the phone in your house. Hope this helps. :)
Hire Gotz to upgrade your house. Then every Saturday watch the Shopping Channel. Once it offer the Kitchen go to Doug's Inn. Use the phone on the counter to order the Kitchen.
11am
You have to upgrade your house once. Talk to Gotz the woodcutter to upgrade your hen house then again to upgrade your house.
You buy it from Gotz construction
you save up more money and get more wood, then go to him between 11:10 in the morning and about 12:30 or 1:00. talk to him and ask him to build you something. he will tell you if you don't have anough money or wood.
get every thing from gotz
you have to unlock the 3rd mine and then gotz will have it ready
You can talk to Gotz via the phone in your house. He builds things for you, but he doesn't live in your village. He will start to build it the next day, when he comes to your house.
On your telephone (at your house), ask Gotz to remodel.