Unlike a condominium in which you only own the air, you own your structure and everything within it, your patio, and the land. For units with no front patio, you own the land up to the drip line of your roof. Besides maintaining the property inside your unit, you are responsible for maintaining your patio(s), your balcony, rear gutters, and all building wood trim. Each homeowner owns their own roof, but the Association is responsible for its maintenance.