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Quadplex

Last updated: October 15, 2025

What is a quadplex?

A quadplex is a four-unit apartment building, with four completely separate units. For legal reasons to qualify as a quadplex, all units must have four locks to secure all of its apartments. Unlike a single family home or single family residence ("SFR"), a quadplex contains four completely separated living units under one roof:

  • 4 entrances (four different keys and locks)
  • 4 kitchens
  • 4 separate utility meters (typically)