Building Reference

Every building in Green City, ordered by tier and unlock progression. Use this page as a quick lookup while planning your city.

☀️

Solar Panel

Tier 1 · Cost 80 coins · Maintenance 0.05 coins/s
Coins/s: 0.5
Energy: -2
Pollution: 0
Happiness: +1

Backbone of any clean grid. Cheap, silent, zero pollution. Pair 1:1 with Eco Houses to keep energy positive.

🌬️

Wind Turbine

Tier 1 · Cost 200 coins · Maintenance 0.05 coins/s
Coins/s: 1
Energy: -6
Pollution: 0
Happiness: +2

Stronger energy producer than Solar at 2.5× the price. Essential for supporting Tier 3 buildings.

🏡

Eco House

Tier 1 · Cost 200 coins · Maintenance 0.05 coins/s
Coins/s: 1.5
Energy: +1.5
Pollution: +0.8
Happiness: +3

Your primary early-game income source. Place after at least one energy producer is online.

🌳

Park

Tier 1 · Cost 90 coins · Maintenance 0.05 coins/s
Coins/s: 0
Energy: +1
Pollution: -2
Happiness: +5

Best happiness-per-coin ratio in the game and absorbs pollution. Run at least one per 4 buildings.

🌻

Community Garden

Tier 1 · Cost 100 coins · Maintenance 0.05 coins/s
Coins/s: 0.3
Energy: -1
Pollution: -1.5
Happiness: +4

Tiny footprint, big benefit — happiness, pollution reduction, and a small energy surplus for 100 coins.

🏪

Market

Tier 1 · Cost 180 coins · Maintenance 0.05 coins/s
Coins/s: 2
Energy: +1
Pollution: +0.5
Happiness: +2

Strong steady income with mild pollution. Buffer with a nearby Park or Bike Lane.

🚲

Bike Lane

Tier 2 · Cost 120 coins · Maintenance 0.1 coins/s · Unlocks at 50 City Health
Coins/s: 0.5
Energy: -1
Pollution: -0.5
Happiness: +2

Cheap utility tile that turns negative neighbors slightly positive. Great filler in dense layouts.

🏭

Factory

Tier 1 · Cost 500 coins · Maintenance 0.05 coins/s · Unlocks at 40 City Health
Coins/s: 6
Energy: +4
Pollution: +5
Happiness: -2

Highest raw income in Tier 1 but wrecks City Health if unbuffered. Always pair with Recycling Plants.

🏛️

City Hall

Tier 2 · Cost 250 coins · Maintenance 0.1 coins/s
Coins/s: 0
Energy: 0
Pollution: +1
Happiness: +3

Unlock-gated landmark. Provides happiness with minor pollution. Build once per city.

🏫

School

Tier 2 · Cost 280 coins · Maintenance 0.1 coins/s · Unlocks at 50 City Health
Coins/s: 1
Energy: +1
Pollution: 0
Happiness: +5

Pure happiness with zero pollution. The single best happiness-to-cost ratio in Tier 2.

♻️

Recycling Plant

Tier 2 · Cost 380 coins · Maintenance 0.1 coins/s · Unlocks at 50 City Health
Coins/s: 2
Energy: +2
Pollution: -2.5
Happiness: +1

Pollution absorber. Two of these fully cancel one Factory's emissions.

🏢

Green Apartments

Tier 2 · Cost 320 coins · Maintenance 0.1 coins/s · Unlocks at 50 City Health
Coins/s: 2
Energy: -1
Pollution: +1.5
Happiness: +4

Tier 2 housing — better coins than Eco House and produces energy. Replace early houses with these mid-game.

🌬️

Wind Farm

Tier 3 · Cost 700 coins · Maintenance 0.2 coins/s · Unlocks at 80 City Health
Coins/s: 2
Energy: -8
Pollution: 0
Happiness: +3

Massive energy surplus. Required to support Carbon Capture Plants without browning out.

🚎

EV Transit Hub

Tier 3 · Cost 1000 coins · Maintenance 0.2 coins/s · Unlocks at 80 City Health
Coins/s: 3
Energy: +3
Pollution: -2
Happiness: +6

High happiness Tier 3 building that mildly reduces pollution. Excellent capstone for a green city.

🌾

Vertical Farm

Tier 3 · Cost 850 coins · Maintenance 0.2 coins/s · Unlocks at 80 City Health
Coins/s: 4
Energy: +2
Pollution: -1
Happiness: +4

Balanced Tier 3 income + happiness. Good first Tier 3 purchase.

🏭

Carbon Capture Plant

Tier 3 · Cost 1600 coins · Maintenance 0.2 coins/s · Unlocks at 80 City Health
Coins/s: 1
Energy: +4
Pollution: -8
Happiness: +2

The most powerful pollution reducer in the game. Pair with a Wind Farm to feed its energy hunger.