House Upgrade - After you have some profits from your farm, you can consider to upgrade your house. This house is best suit for singles. It has a kitchen for you to cook your own dishes, a fridge to store foods and a large storage cupboard for storing your items!! I personally would like that kitchen! The larger room will also make it more comfortable to live.
Lumber-370
Money-4700g

Barn Upgrade - Just like your coop, the animal house can also be upgraded into a large one with 20 animals capacity and an extra breeding area. Believe me, you don't want this much animals, but if you have to be the best, go ahead!
Lumber-500
Money-6800g

House Upgrade #2 - You want to get married don't you? Well, the house is large enough for 2 people to live in and it is also suitable for your child. It has a large kitchen and a living room. Of course, we include a bedroom and a fireplace for you to keep warm in winter. You can burn some lumber in the fireplace to improve your strength restore rate!! Very Cool!br> Lumber-750
Money-10000g

Green House - You can plant any type of plant any time! The area of greenhouse is a little bit small and it only has 7 x 7 squares of area for you to grow... The upgrade price is 30000G and requires 580 lumbers. Unfortunately, compare to any other buildings in the village, greenhouse can be damaged during typhoons or big snows since it is mainly built by glass. :(
Lumber-580
Money-30000g