Builder's risk insurance is a special type of property insurance which indemnifies against damage to buildings while they are under construction. Builder's risk insurance is "coverage that protects a person's or organization's insurable interest in materials, fixtures and/or equipment being used in the construction or renovation of a building or structure should those items sustain physical loss or damage from a covered cause.
Buildings are subject to many different risks while under construction. They may catch fire, be damaged by high winds, or fall victim to other force majeure. A principle of common law is that any new construction or other improvement to land becomes property of the owner of the land - the title holder - once there has been an "improvement" to the owner's site. Builder's risk insurance indemnifies against some of these losses.