Income...
	Inspections...
	Licenses...
	Saving time...
	Workers...

The monthly income by each house or apartment is strongly influenced by the happiness of its inhabitants. Demolish buildings near to them only when you also have the money to clear the plot of the debris immediately afterwards to make sure their happiness does not decrease.

The happiness of a family house is increased by one for each family house that is built next to it. The happiness of apartment blocks are not affected by other apartment blocks. Note: The houses' happiness will decrease when they are built near old blocks, old houses, apartment blocks as well as the post office, the supermarket and the restaurant, while apartment blocks are not affected by those buildings.

While houses and apartments are upgraded or get repaired you will not get a monthly income from them. Upgrade and repair when you just received the income to minimize this.

Inspections only prevent buildings from getting damaged as long until you change something. If you upgrade a building in any way after an inspection it can still get broken until you do a new inspection.

Although blueprints remain in your possession from the moment they are purchased, licenses must be purchased again in each new level. Note: Every license upgrade increases the monthly income about 20%, while one star upgrade only increases it by 10%.

Because the game is timed, pause game play each time you are not sure about your next move. You can now begin to plan ahead without losing time.

Try to employ every worker you have as often as possible. Assign additional workers when a few are still available. You can assign additional workers for every task (constructing, upgrading, repairing, demolishing and clearing). The cost of clearing debris depends on how large the former building was. Clearing forest always costs $30,000.