What is the benefits of the builder base in clash of clans?

For the Home Village version, see Town Hall. For the Goblin Map version, see Goblin Hall. For the Clan Capital version, see Capital Hall. For the Clan Districts version, see District Hall.

"Home of the Master Builder and the main objective in battle. Destroying a Builder Hall awards an extra star in attacks. Win a Versus Battle by getting the most stars, or dealing more damage if tied. Upgrade the Builder Hall to unlock advanced buildings and troops!"

Level 1	Level 2	Level 3	Level 4	Level 5

Level 6	Level 7	Level 8	Level 9

• The Builder Hall is the equivalent of the Town Hall in the Home Village or the Goblin Hall in the Single Player Campaign. Protection of the Builder Hall is critical for preventing players from getting one star on your base in an attack.
• The Builder Base can be accessed by reaching Town Hall 4 and repairing the broken boat on the sea shore.
• The level 1 Builder Hall is broken and has graves, along with several broken buildings surrounding it when it is first encountered in the tutorial. These include: Star Laboratory, Gem Mine, Clock Tower, Battle Machine, Elixir Collector, Gold Mine, Cannon, Army Camp, and Builder Barracks.
• During the tutorial, the Builder Hall is upgraded to level 2, and in doing so buildings immediately surrounding apart from the Gem Mine, Clock Tower and Battle Machine are automatically repaired. In addition to this, the Boat is also repaired and the Raged Barbarian is upgraded to level 2.
• You must place all buildings available from the current Builder Hall level before you are able to upgrade the Builder Hall.
  • Exceptions to this rule are the Gem Mine, Clock Tower, and Battle Machine, for which repairing is optional.

• The Builder Hall is best placed in the center protected by buildings as it gives a star to your opponent when destroyed. This is critical as the number of stars is compared first before the damage percentage, and if your opponent can get to the Builder Hall, they will most likely get more than 50%, giving them at least a 2-star.
• Do not place your Builder Hall in a corner surrounded by Walls: troops can still be placed next to the Builder Hall.
• The Crusher is extremely good at protecting the Builder Hall because of its high damage in a small radius. Make sure to protect it using defenses with a longer range to prevent ranged troops to snipe away at them.
• Unlike the Town Hall in the Home Village, it can be beneficial to "rush" (quickly upgrade) the Builder Hall, as loot penalty does not exist — loot won is determined solely by the number of Versus Trophies that you have. Additionally, at higher Builder Hall levels, you can unlock new buildings and troops as well as new levels for existing troops and buildings. Indeed, it can also be beneficial to rush the Builder Hall to unlock O.T.T.O as quickly as possible, thus enabling the Master Builder to be used as an extra builder in the Home Village.

• The Builder Hall undergoes significant visual changes at all levels.
  • At level 1, the Builder Hall appears as a ruined orange-roofed house with a damaged chimney.
  • At level 2, the structure (including chimney) is repaired. The ladder on the top aligns with the "Builder's Hut" on top.
  • At level 3, the rear of the building gains an additional floor, as well as a ladder on the side.
  • At level 4, the "Builder's Hut" panel now sits on a stone structure on top of the lower front roof of the building. A ladder is placed next to the newly built stone structure.
  • At level 5, the stone structure on the roof extends to the entire width of the building. One of the ladders is also gone.
  • At level 6, the front of the building gains an additional floor and the roof becomes one piece again. The entrance arch is now fully visible, along with giving a more pleasant appearance to the structure. It gains a framing on the front of the Builder Hall.
  • At level 7, the Builder Hall gains two gears on the side, which seems to continue underground. Furthermore, a hatch on the back right side of the building is seen open, with glowing red-orange light coming out of it, presumably a forge. Most of the vines disappear from the Builder Hall.
  • At level 8, two chimneys appear at the end of the roof in place of the single chimney at the corner. All vegetation disappears from the building. A third gear is also added to the side of the structure and the roof is now flat going downwards instead of going up then back down.
  • At level 9, the two chimneys are slightly shortened and reinforced with a stone base. The bases of the gears are now yellow/gold. The roof goes up then stops at the stone base and then back down. The Builder Hall also gets stone brick supports on the front.

• At each Builder Hall level, new buildings are unlocked. The below table shows the unlocked buildings and traps by Builder Hall level. Where "New" is written, one of that building or trap is unlocked unless otherwise stated in brackets.
• Many ruined buildings that appear when first entering the Builder Base are repaired by upgrading the Builder Hall to level 2. As such, ruined Builder Hall 1 buildings that are repaired by upgrading to Builder Hall 2 will be listed under Builder Hall 1, while buildings actually unlocked at Builder Hall 2 will be listed under Builder Hall 2. Other ruined buildings (Gem Mine, etc.) that are not fixed by upgrading to Builder Hall 2 are listed at the Builder Hall level they can be repaired.
• Wall unlocks will be shown by the number of Wall pieces unlocked, not by the number of 5-piece segments unlocked; this is how the unlocks are displayed in the game.

Builder Hall	Unlocks
1	Cannon*, Gold Mine*, Elixir Collector*, Army Camp*, Builder Barracks*, Star Laboratory*.
2	Archer Tower, Double Cannon, Gold Storage, Elixir Storage, Push Trap.
3	Gem Mine (able to rebuild), Hidden Tesla, Firecrackers, Crusher, Spring Trap, Mine.
4	Clock Tower (able to rebuild), Guard Post, Air Bombs, Mega Mine.
5	Battle Machine Altar (able to rebuild), Multi Mortar
6	Roaster
7	Giant Cannon
8	Mega Tesla
9	O.T.T.O Hut, Lava Launcher

*These buildings are already there when first traveling to the Builder Base. They are repaired during the tutorial.

History

• When the Builder Base was released on 22/05/17, there were only five Builder Hall levels. Although data for Builder Halls up to level 8 were present in the game files, they were not made available until later.
• Builder Hall 6 was added on 27/06/17.
• Builder Hall 7 was added on 29/09/17.
• Builder Hall 8 was added on 05/03/18.
• Builder Hall 9 was added on 18/06/19.

Trivia

• The Builder Base does not have Builder's Huts. Instead, the Master Builder lives in the Builder Hall. At Builder Hall 9, though, the O.T.T.O Hut is unlocked, which gives you a second builder, and allows, if the Master Builder's Hut has been placed in the Home Village, to have your Master Builder travel between the two villages.
• The Builder Boat, which sits at the other side of the dock from your Boat, is unlocked at Builder Hall level 3. This boat allows the Master Builder to gear up your defenses in your Home Village. However, the first defense available to gear up, the Cannon, can only be geared up at Builder Hall 4, as the Double Cannon must be level 4, which you can only get at Builder Hall 4.
• During the tutorial, Versus Battles are introduced by attacking "Master Jimmy" from the clan "The Order". This is just a fictitious enemy and not a real online player. The clan name is a reference to the clan "The Order", which is known to be the first clan to ever exist in the game. He uses 4 Sneaky Archers, 2 Cannon Carts and a Drop Ship, although it is impossible to unlock both the Cannon Cart and Drop Ship at his Builder Hall level. You cannot replay his attack.
  • The tutorial battle cannot be lost or drawn, even if the player were to score 0% (Versus Battle rules typically mean that scoring 0% nets a draw at best, under the circumstance that the opponent also scores 0%).
• Before upgrading the Builder Hall to level 2, buildings can be selected but not interacted with. The graves can be collected, though.
• All buildings and traps (except for the Builder Barracks, Spring Trap, Battle Machine, Army Camp, and O.T.T.O Hut) have a level cap of equivalent value to that of your Builder Hall.
  • The Builder Barracks has 11 levels, the Spring Trap has 4 levels, the Battle Machine has 30 levels, the Army Camp cannot be upgraded, and the O.T.T.O Hut has 5 levels.
• Although the Star Laboratory and Builder Barracks appear in the shop, you are unable to purchase them as they were repaired when upgrading the Builder Hall to level 2.
• The Builder Hall has the same hammer and saw on top as the Builder's Hut and the Master Builder's Hut.

Icon Descriptions

	Tapping this icon displays information about the Builder Hall, such as Level, Storage Capacity and Hitpoints.
	Tapping this icon displays information about your inventory of Magic Items.
	Tapping this icon moves the Master Builder to the Home Village. This icon is only shown when the O.T.T.O Hut is at maximum level and the Master Builder's Hut has been placed in the Home Village.
	Tapping this icon informs you that the Master Builder is already in the Home Village, or that the Master Builder's Hut has not been placed. This icon is only shown when the O.T.T.O Hut is at maximum level.
	Tapping this icon begins upgrading the Builder Hall to the next level, if you have enough resources and a free Master Builder. When the Builder Hall is at maximum level, this icon is not shown.
	Tapping this icon instantly upgrades the Builder Hall to the next level, at the cost of one Hammer of Building if you have one. When the Builder Hall is at maximum level, or the Builder Hall requirements for the next level are not met, this icon is not shown.
	Tapping this icon, which is displayed only while an upgrade is in progress, instantly finishes that upgrade at the cost of the displayed number of Gems.
	Tapping this icon, which is displayed only while an upgrade is in progress, instantly finishes that upgrade at the cost of one Book of Building. This icon is only shown if you have at least one Book of Building.
	Tapping this icon, which is displayed only while an upgrade is in progress, instantly finishes that upgrade at the cost of one Book of Everything. This icon is only shown if you have at least one Book of Everything but do not have a Book of Building.
	Tapping this icon, which is displayed only while an upgrade is in progress, cancels the current upgrade and refunds half of the upgrade cost.

Size
4x4

BH Level	Hitpoints	Build Cost	Build Time	Experience Gained	Maximum Number of Buildings Available
1	100	N/A	N/A	N/A	0
2	800	3,500	5s	2	10
3	960	30,000	1h	60	18
4	1,152	200,000	1d	293	23
5	1,382	400,000	2d	415	31
6	1,658	1,200,000	3d	509	34
7	1,990	1,800,000	4d	587	38
8	2,388	2,800,000	5d	657	46
9	2,507	3,800,000	6d	720	49

Upgrading your Builder Hall unlocks the following number of Resource and Army Buildings; see the page for each building for details.

Upgrading your Builder Hall allows the following Resource and Army Buildings to be upgraded to these levels; see the page for each structure to learn what each upgrade brings:

Upgrading your Builder Hall unlocks the following number of Defensive Buildings; see the page of each building for details.

Upgrading your Builder Hall unlocks the following levels of Defensive Buildings; see the page for each building for details.

Upgrading your Builder Hall unlocks the following number of Traps; see the page of each building for details.

Upgrading your Builder Hall unlocks the following levels of Traps; see the page for each building for details.