Average basement finish across the world

The degree to which the basement has been developed into habitable space.

This indicates whether the underground area has been converted into usable living space or remains in basic condition.

• Not applicable: No basement exists or basement finish categorization doesn't apply
• Finished: Fully developed with proper walls, flooring, ceiling, and utilities
• Unfinished: Raw space with exposed foundation, concrete floor, and visible structure
• Partial: Some areas finished while others remain in basic condition