Renters today pay a premium for convenience. Industry data shows that smart locks for renters are highly coveted, with residents assigning a $36/month perceived increase in rental value to apartments equipped with them. However, a major conflict exists between modern convenience and standard lease terms. Many generic tech guides mistakenly recommend full-deadbolt replacements that require altering the door’s exterior. Doing so can violate your lease agreement by preventing your landlord or property manager from using their master key in an emergency.
The golden rule for apartment dwellers is simple: never modify the exterior lock cylinder without written approval. Instead, you should rely on “true retrofit” smart locks, which upgrade only the interior thumbturn of your deadbolt while leaving your landlord’s key intact.
This visual explains the ‘true retrofit’ no-drill smart lock concept used in apartments, showing how the original key cylinder remains untouched to keep landlord key access and prevent lease violation risks.
For roommates, shared spaces, or simple in-home privacy, doorway security is only half the battle. You may also need a 
