Harvest Moon

These are the extentions available in BTN. They are listed in the order you have to get them. Unlike in HM64, there is a specific order you must get the upgrades done.

Chicken Coop Extention-With this upgrade you can have up to 10 chickens(first one only 5).
Cost-5,000G
Wood-420

First House Upgrade-This upgrade adds a kitchen to your small shack(with a refrigerator) and also adds a cabinet.
Cost- 4,700G
Wood-370

Barn Extention-This adds space for 20 animals(all together) and another breeding station.
Cost-6,800G
Wood-500
Cost-4700G
Wood-370
Second House Upgrade-This upgrade adds a separate bedroom to your house (with an extra bed for your wife when you get married), and it just makes the house larger.
Cost-10,000G
Wood-750
Greenhouse-This greenhouse sits right next to your house. It is very small, I think only 7x7 area (that fits about 4 patches of crops). But it serves basically the same purpose as the one in the N64 version! But this can easily be torn down by typhoons and stuff!
Cost-30,000G
Wood-580