House expansion guide (ACWW)
From Animal Crossing City
| Expansion | Size | Cost |
| Starter House | 4x4 | 19,800 |
| First House Expansion | 6x6 | 120,000 |
| Second House Expansion | 8x8 | 298,000 |
| Second Floor | 6x6 | 598,000 |
| Left Room | 6x6 | 728,000 |
| Right Room | 6x6 | 848,000 |
| Back Room | 6x6 | 948,000 |
The benefits of expanding you home is to store more things, improve your HRA ratings, and have more fun. There is no advantage in making small mortgage payments, so wait until you have the full amount needed. This can be accomplished by going to City Hall and at the Post Office side inquire about your mortgage. Once you pay the amount due in full, you will be ready for the next expansion.
Upon you next visit to Nook, he will congratulate you and ask if you want the next upgrade. No matter your answer yes or no, you get the upgrade with another mortgage bill due.
