# Office 🏢 The Office is the core building that directly impacts the city’s economic strength. Starting at level 0, it determines the hourly $SITY income a player can earn. As players upgrade the Office, the amount of $SITY generated per hour increases. This building is essential for growing your city's wealth and unlocking further opportunities for expansion.

Office Level	Hourly $SITY earnings ($SITY/h)	Upgrade Costs
Level0	55 $SITY/h	16K $SITY
Level1	100 $SITY/h	32K $SITY
Level2	170 $SITY/h	64K $SITY
Level3	300 $SITY/h	128K $SITY
Level4	525 $SITY/h	256K $SITY
Level5	925 $SITY/h	512K $SITY
Level6	1650 $SITY/h	1.024M $SITY
Level7	2825 $SITY/h	-