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5+ war bases for Builder Hall 7 — Optimized to prevent 3-star in clan wars





Optimized to prevent 3-star in clan wars. At Builder Hall 7, effective war bases use 6-8 walled compartments with key defenses spread across separate sections to prevent attackers from getting maximum value from each spell.
Proper compartment design is the foundation of every war base. Each compartment should contain 1-3 defenses maximum — placing more creates excessive value for attackers who breach that section.
Mass Dragon, GoWiPe, and Mass Hog Rider attacks are the primary threats at BH7. Effective war bases counter these with specific defense placements and trap positioning.
Against Mass Dragon attacks, spread Air Defenses in a diamond pattern to avoid Lightning Spell value. Use Seeking Air Mines near the core and Air Sweepers facing common approach angles. Double Giant Bomb placements between defenses counter Hog Rider attacks — see our trap placement guide for positioning details.
Compare bases by their compartment count, defense spread, and which attack strategies they counter. Higher-rated bases with more downloads have been community-tested. Sort by rating above to find the most proven layouts.
Each base on this page includes a unique AI-generated analysis describing specific defense placements, strengths, and weaknesses. Read the analysis before copying to ensure the base matches your defensive needs. Also explore other BH7 base types: War, Farming, Trophy, Hybrid, and Anti-3 Star. Read our clan war base strategy guide for detailed recommendations on which type to use.
Base design is only half the equation. Understanding what attacks your base will face helps you build a stronger defense. Read our attack strategy guides to see how opponents think:
For a complete overview of base design principles, read the Ultimate Guide to COC Base Layouts.