"Beneficial use" is a legal term describing a person's right to enjoy the benefits of specific property, especially a view or access to light, air, or water, even though title to that property is held by another person. This may also be termed "beneficial enjoyment".
Compare this with a "beneficial interest", where a beneficiary has an interest in a thing ("res"), such as a trust or estate, but does not own the underlying property. This usually entitles the beneficiary to some of the income from the underlying property.
Also, compare this to beneficial owner where specific property rights ("use and title") in equity belong to a person even though legal title of the property belongs to another person. For example, companies often hold stocks or bank funds in their name for the benefit of a person.