Avg Year Built in Onset Bay: 1900 / County Avg 1966
Massachusetts MLS Property Info Network (MLSPIN) - The property listing data and information set forth herein were provided to MLS Property Information Network, Inc. from third party sources, including sellers, lessors and public records, and were compiled by MLS Property Information Network, Inc. The property listing data and information are for the personal, non commercial use of consumers having a good faith interest in purchasing or leasing listed properties of the type displayed to them and
may not be used for any purpose other than to identify prospective properties which such consumers may have a good faith interest in purchasing or leasing. MLS Property Information Network, Inc. and its subscribers disclaim any and all representations and warranties as to the accuracy of the property listing data and information set forth herein. Last Update: September 21, 2026 10:24 PM UTC
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this Site comes in part from the IDX Program of PrimeMLS. The information
being provided is for consumers' personal, non-commercial use and may
not be used for any purpose other than to identify prospective properties
consumers may be interested in purchasing. Data last updated September 21, 2026 10:19 PM UTC
