The resources wood, clay and iron are stored in the Great Warehouse. By upgrading the level of the Great Warehouse, you increase your resource storage capacity to store three times as much resources than in the regular one.
Requirements: Main Building Level 10
Construction Costs
| Level |  Wood |  Clay |  Iron |  Crop |  Total Pop |
| 1 | 650 | 800 | 450 | 200 | 1 |
| 2 | 830 | 1025 | 575 | 255 | 1 |
| 3 | 1065 | 1310 | 735 | 330 | 1 |
| 4 | 1365 | 1680 | 945 | 420 | 1 |
| 5 | 1745 | 2145 | 1210 | 535 | 1 |
| 6 | 2235 | 2750 | 1545 | 685 | 1 |
| 7 | 2860 | 3520 | 1980 | 880 | 1 |
| 8 | 3660 | 4505 | 2535 | 1125 | 1 |
| 9 | 4685 | 5765 | 3245 | 1440 | 1 |
| 10 | 5995 | 7380 | 4150 | 1845 | 1 |
| 11 | 7675 | 9445 | 5315 | 2360 | 2 |
| 12 | 9825 | 12090 | 6800 | 3020 | 2 |
| 13 | 12575 | 15475 | 8705 | 3870 | 2 |
| 14 | 16095 | 19805 | 11140 | 4950 | 2 |
| 15 | 20600 | 25355 | 14260 | 6340 | 2 |
| 16 | 26365 | 32450 | 18255 | 8115 | 2 |
| 17 | 33750 | 41540 | 23365 | 10385 | 2 |
| 18 | 43200 | 53170 | 29910 | 13290 | 2 |
| 19 | 55295 | 68055 | 38280 | 17015 | 2 |
| 20 | 70780 | 87110 | 49000 | 21780 | 2 |
| SUM | 321250 | 395375 | 222400 | 98840 |
Storage Capacity
| Level | Without Travian Plus | With Travian Plus |
| 1 | 3,600 | 4,500 |
| 2 | 5,100 | 6,375 |
| 3 | 6,900 | 8,625 |
| 4 | 9,300 | 11,625 |
| 5 | 12,000 | 15,000 |
| 6 | 15,000 | 18,750 |
| 7 | 18,900 | 23,625 |
| 8 | 23,100 | 28,875 |
| 9 | 28,800 | 36,000 |
| 10 | 36,000 | 45,000 |
| 11 | 43,200 | 54,000 |
| 12 | 54,000 | 67,500 |
| 13 | 66,000 | 82,500 |
| 14 | 78,000 | 97,500 |
| 15 | 96,000 | 120,000 |
| 16 | 114,000 | 142,500 |
| 17 | 135,000 | 168,750 |
| 18 | 165,000 | 206,250 |
| 19 | 198,000 | 274,500 |
| 20 | 240,000 | 300,000 |
| Level | Without Travian Plus | With Travian Plus |
| 1 | 4,500 | 5,625 |
| 2 | 6,375 | 7,969 |
| 3 | 8,625 | 10,781 |
| 4 | 11,625 | 14,561 |
| 5 | 15,000 | 18,750 |
| 6 | 18,750 | 23,438 |
| 7 | 23,625 | 29,531 |
| 8 | 28,875 | 36,094 |
| 9 | 36,000 | 45,000 |
| 10 | 45,000 | 56,250 |
| 11 | 54,000 | 67,500 |
| 12 | 67,500 | 84,375 |
| 13 | 82,500 | 103,125 |
| 14 | 97,500 | 121,875 |
| 15 | 120,000 | 150,000 |
| 16 | 142,500 | 178,125 |
| 17 | 168,750 | 210,938 |
| 18 | 206,250 | 257,813 |
| 19 | 247,500 | 309,375 |
| 20 | 300,000 | 375,000 |
| Level | Without Travian Plus | With Travian Plus |
| 1 | 5,400 | 6,750 |
| 2 | 7,650 | 9,563 |
| 3 | 10,350 | 12,938 |
| 4 | 13,950 | 17,438 |
| 5 | 18,000 | 22,500 |
| 6 | 22,500 | 28,125 |
| 7 | 28,350 | 35,438 |
| 8 | 34,650 | 43,313 |
| 9 | 43,200 | 54,000 |
| 10 | 54,000 | 67,500 |
| 11 | 64,800 | 81,000 |
| 12 | 81,000 | 101,250 |
| 13 | 99,000 | 123,750 |
| 14 | 117,000 | 146,250 |
| 15 | 144,000 | 180,000 |
| 16 | 171,000 | 213,750 |
| 17 | 202,500 | 253,125 |
| 18 | 247,500 | 309,375 |
| 19 | 297,000 | 371,250 |
| 20 | 360,000 | 450,000 |
| Level | Without Travian Plus | With Travian Plus |
| 1 | 7,200 | 9,000 |
| 2 | 10,200 | 12,750 |
| 3 | 13,800 | 17,250 |
| 4 | 18,600 | 23,250 |
| 5 | 24,000 | 30,000 |
| 6 | 30,000 | 37,500 |
| 7 | 37,800 | 47,250 |
| 8 | 46,200 | 57,750 |
| 9 | 57,600 | 72,000 |
| 10 | 72,000 | 90,000 |
| 11 | 86,400 | 108,000 |
| 12 | 108,000 | 135,000 |
| 13 | 132,000 | 165,000 |
| 14 | 156,000 | 195,000 |
| 15 | 192,000 | 240,000 |
| 16 | 228,000 | 285,000 |
| 17 | 270,000 | 337,500 |
| 18 | 330,000 | 412,500 |
| 19 | 396,000 | 495,000 |
| 20 | 480,000 | 600,000 |