B.O.B Control (Builder Base)
Builder Base Buildings
Updated: 18 September 2026 · By the Goblins Farm team
Control center for Master Builder's latest invention! Once fully upgraded, B.O.B becomes an additional builder in the Home Village!
What the numbers say
B.O.B Control is a resource building in the Builder Base. It is unlocked at Builder Hall 9 and upgradeable through 5 levels. It occupies 2x2 tiles.
Taking one from level 1 to 5 costs 6,600,000 Builder Gold in total.
How it looks at each level
Stats by level
| Level | Hitpoints | DPS or effect | Build cost | Build time | Builder Hall |
|---|---|---|---|---|---|
| 1 | 250 | — | 100,000 Builder Gold | Instant | 9 |
| 2 | 250 | — | 500,000 Builder Gold | — | 9 |
| 3 | 250 | — | 1,000,000 Builder Gold | — | 9 |
| 4 | 250 | — | 2,000,000 Builder Gold | — | 9 |
| 5 | 250 | — | 3,000,000 Builder Gold | — | 9 |
Where these numbers come from. Read from Clash of Clans' own game files, client build 18.600.3. They are exact for that build and do not reflect anything released after it, so verify in game before committing an upgrade.
Game values are read from Supercell's own game files, reproduced as fan content under Supercell's Fan Content Policy. Goblins Farm is not affiliated with, endorsed, sponsored, or specifically approved by Supercell, and Supercell is not responsible for it.
Keep reading
Goblins Farm is not affiliated with, endorsed by, sponsored by, or specifically approved by Supercell. Clash of Clans is a trademark of Supercell Oy. This material is unofficial fan content produced under Supercell's Fan Content Policy. Game values change with every update; always verify in-game before committing an upgrade.