There shall be a step-free route of travel to at least one step-free entrance to the dwelling unit. Entrance to the unit by way of a garage would qualify as an acceptable route. Multifamily dwelling units located within a building that are above the first floor of the building and are only accessible via stairway are exempt from this requirement. The door of this entrance shall be a minimum of 36-inches wide and shall meet all applicable building requirements. Exterior lead walks shall be structurally firm and slip resistant with a smooth uniform surface. Lead walks shall be a minimum of 42-inch-wide from the point of arrival to the primary or garage entrance and any slope should be consistent with all applicable requirements.