Tandis que, dans certains endroits, on pourrait rendre le code plus contraignant, dans certaines villes, comme à Seattle (Washington), on autorise la construction d'habitations multifamiliales plus élevées que celles permises par le code modèle.
Just as a jurisdiction could make the code more restrictive, in some places, such as Seattle, Washington, multi-family buildings are permitted to be taller than allowed by the model building code.