What does MDU mean in real estate?
MDU stands for multi-dwelling unit: a residential building with separate homes. The term describes the property, not its ownership or its number of subscribers.
In real estate and broadband planning, MDU means “multi-dwelling unit,” often used as shorthand for a building containing multiple separate homes. An apartment building or condominium building can be an MDU. The abbreviation describes how homes are grouped; it does not tell you whether the residents rent or own, or whether one manager controls every unit.
Why does the distinction matter to a technology vendor?
Consider an 80-apartment building. It may be one property in a sales database, 80 potential household connections for an internet provider and several shared entrances for an access-control installer. Counting 80 properties overstates the number of buildings. Counting one household understates the installation work. Ask about buildings, units and occupied homes separately before estimating demand.
Is MDU a legal classification?
Not by itself. A telecom provider’s sales category and a city’s “multiple dwelling” code can use different definitions or thresholds. Use the applicable local definition for permits and safety obligations. For broadband, the FCC discusses apartments and similar properties under multiple tenant environments. Its terminology is useful when asking who controls wiring, who can authorize work in common areas and what choices residents have. For an example of a system serving a whole building but granting access person by person, see mobile access control.