|Cost to Build||₡18,000|
The Tax Office is a level 3 unique building in Cities: Skylines.
To unlock it, you’ll need to do three things:
- Construct a water treatment plant
- Have an electricity production of 1,000 MW (all at once, not accumulated over time)
- Reach the Boom Town population milestone (between 650 to 2,600 population, depending on the map)
This unlock is simple enough, but the second requirement can be quite costly. Especially if your city isn’t large enough to justify that much electricity production in the first place.
Once unlocked, you can build the Tax Office from the level 3 unique building tab for ₡18,000. It provides 50 entertainment value and produces 10 noise pollution.
The Tax Office is a requirement for the Fusion Power Plant monument.
Step 1: Constructing a Water Treatment Plant
Simply build a water treatment plant from the Water & Sewage menu.
Only the basic water treatment plant counts for this; similar facilities like the eco inland water treatment plant do not.
You do not need to keep the water treatment plant operational for the unlock; it only needs to be built. So feel free to keep it switched off and disconnected if you prefer to use other sewage treatment options.
Step 2: Producing 1,000 MW of Electricity
This second part is a little more complicated, unless you have a very large city that already uses that much power in the first place.
But even if your city isn’t quite that size yet, this should be no problem if you have plenty of money to spare (just remember to keep the new buildings switched off until your city starts requiring the additional power).
You’ll have different power production facilities available to you depending on how late in the game you are; they’ll vary in terms of initial cost, max production per building, upkeep, and pollution.
|Building||Unlocked at||Build Cost (₡)||DLC||Max Output (MW)|
|Coal Power Plant||Start||19,000||None||40|
|Advanced Wind Turbine||Boom Town||12,000||None||20|
|Wave Power Plant||Boom Town||14,000||High Tech Buildings||20|
|Geothermal Power Plant||Busy Town||65,000||Green Cities||80|
|Oil Power Plant||Busy Town||50,000||None||120|
|Solar Updraft Tower||Big Town||90,000||Green Cities||240|
|Hydro Power Plant||Small City||varies||None||varies*|
|Solar Power Plant||Grand City||80,000||None||160|
|Nuclear Power Plant||Colossal City||200,000||None||640|
|Ocean Thermal Energy Conversion Plant||Colossal City||250,000||Green Cities||480|
Take note that if you’re playing with the day/night cycle on, the solar updraft tower and solar power plant will produce less power at nighttime.