House projects that add net benefits for members.

[Deofuta]

The more members you have the bigger is the tax.

While there may be an increase of revenue with more players in the house (depending of course how the leader decides to implement financial decisions), with the correct use of scale taxes can be constructed in a way that, if one were to build too much, would make the funding of said house nigh impossible A group of players can only make so much money.