Building
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 For Buildings in Cookie Clicker Classic, see Building (Cookie Clicker Classic).
 For Buildings in Cookie Clicker Beta, see Cookie Clicker Beta#Buildings.
Buildings are the foundations of Cookie Clicker. Buildings are items that gradually gain you more cookies for buying more buildings/upgrades. Each building has an individual CpS (cookies per second) and increase in price each time you buy one. Cookie Clicker started with 7 buildings and obtained an extra building in each of versions 0.125, 1.0, 1.036 and 1.041. Currently it has 11 buildings to purchase and admire. Each building has 6 unique upgrades, except for cursors (which have 12) and Grandmas (which have 21).
Each building's price is calculated with the following formula, rounded up to the nearest integer:
 where M = number of that type of building currently owned.
Or, equivalently:
For approximate calculations when one is not in the mood to use a calculator, this translates roughly to a doubling of price every 5 buildings, and a thousand increase every 49.
Buy 10:
Therefore, the cumulative price for N buildings is calculated as a finite geometric series:
If you already got some buildings (for example, if you have 200 Cursors and want to know how much you will spend to reach 240), you can edit a bit the previous formula and get :
Where a is the number of buildings you have, and b is the number you wish to have.
When selling a building, you are refunded half of the building's current price. Note, that this means the refund is 0.575 times of the amount of cookies spent to buy it.
Name  Icon  Base Cost  Base CpS  Max CpS per build  CpS per megacookie (Initial, higher is better)  Payoff time (Initial, lower is better)  Upgrades Available  Description 

Cursor  15  0.1  Total nb of buildings excluding cursors * 1,532.6 + 0.8  6,667  150 seconds, 2.5 minutes  12  Autoclicks once every 10 seconds.  
Grandma  100  0.5  (209,715.2 + amount of grandmas x 10,485.76 + amount of portals x 13,107.2)  5,000  200 seconds, 3.3 minutes  21  A nice grandma to bake more cookies.  
Farm  500  4  160  8,000  125 seconds, 2 minutes  6  Grows cookie plants from cookie seeds.  
Factory  3,000  10  448  3,333  300 seconds, 5 minutes  6  Produces large quantities of cookies.  
Mine  10,000  40  1,600  4,000  250 seconds, 4.1 minutes  6  Mines out cookie dough and chocolate chips.  
Shipment  40,000  100  4,160  2,500  400 seconds, 6.6 minutes  6  Brings in fresh cookies from the cookie planet.  
Alchemy Lab  200,000  400  16,000  2,000  500 seconds, 8.3 minutes  6  Turns gold into cookies!  
Portal  1.667 million  6,666  266,624  4,000  250 seconds, 4.1 minutes  6  Opens a door to the cookieverse.  
Time Machine  123.457 million  98,765  3.477 million  800  1,250 seconds, 20.8 minutes  6  Brings cookies from the past, before they were even eaten.  
Antimatter Condenser  4 billion  999,999  35.2 million  250  4,000 seconds, 66.6 minutes, 1.1 hours  6  Condenses the antimatter in the universe into cookies.  
Prism  75 billion  10 million  352 million  133  7,500 seconds, 125 minutes, 2.1 hours  6  Converts light itself into cookies. 
TriviaEdit
 Purchasing 200 of every building would have a cumulative cost of 727.4 sextillion cookies. 94.7% of that is the price of Prisms.
 Purchasing 400 Cursors for the Dr. T achievement would have a cumulative cost of 190.2 septillion cookies.
 As the prices rise the more of a building you own, the price will eventually reach a number too large to process, and the price will say infinity and you cannot buy more unless you cheat to lower the prices or obtain more buildings etc. In the Live version, the maximum numbers are 5,060 Cursors, 5,046 Grandmas, 5,035 Farms, 5,022 Factories, 5,013 Mines, 5,004 Shipments, 4,992 Alchemy labs, 4,977 Portals, 4,946 Time Machines, 4,921 Antimatter condensers, and 4,903 Prisms. This roughly corresponds to 2×10^{308}. The game uses Doubleprecision floatingpoint format to store the number of cookies. (Note, may be a bit outdated since there are now upgrades that reduce the price of buildings.)
 If you've built the amount of buildings above, in total, with all upgrades, your buildings will give you: 83.909 billion from cursors, 298.611 billion from grandmas, 402,800 from farms, 1.125 million from factories, 4.01 million from mines, 10.406 million from shipments, 39.936 million from alchemy labs, 663.494 million from portals, 8.597 billion from time machines, 86.609 billion from antimatter condensers, and 862.928 billion from prisms, for a grand total of 1.266 trillion times your multiplier.
 You would need 527,578 noncursor builds for each single fully upgraded cursor to give more CpS than a fully upgraded prism. As of now, you can only get to 49,858 buildings, or 16.583 million CpS  A bit less than a maxed out antimatter condenser.
 A spreadsheet with the cost of every building up until the 400th purchase can be found here.
 The Beta version has 3 new buildings which are the Bank, Temple, and Wizard Tower.
Buildings  

 

Mechanics  

Cookies  Clicking • Buildings  
General  Achievements • CpS • Milk • Golden Cookies • News Ticker • Options • Cheating  
Upgrades  Multipliers  Flavored Cookies • Kittens • Heavenly Chips 
Research  Grandmapocalypse • Wrath Cookies • Wrinklers  
Seasons  Valentine's Day • Business Day • Easter • Halloween • Christmas 