Conn. Gen. Stat. § 12-108: Stored property as property in transit.

Goods, wares and merchandise of a nonresident individual or organization not having an office or place of business in this state, shipped into this state by such nonresident individual or organization and placed in storage in the original package in a public commercial storage warehouse or on a public wharf, shall, while so in storage, be considered in transit and not subject to local property taxation, but no portion of premises, which portion is owned or leased by a consignor or consignee, shall be deemed a public warehouse.