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A dedicated Bellport resident and the distinguished broker/owner of Old Purchase Properties, Mark Petheram has been a cornerstone in the real estate industry for over 40 years. With a fervor for real estate ignited in his youth while locating sites for professional photo shoots, Mark has developed an exceptional understanding of the market dynamics and a deep appreciation for the unique charm of Bellport.


Mark’s commitment extends beyond real estate. He has played a pivotal role in the Bellport community, holding positions such as president and vice president of the Bellport Chamber of Commerce, in addition to contributing to various village boards and local fundraisers. His passion for the community and its betterment is evident through his continuous involvement and support of local initiatives.


An avid boater, Mark’s connection to the Great South Bay is not only a personal passion but also enhances his expertise in the real estate market, offering an unique perspective on the area’s properties. His impressive portfolio and unmatched knowledge in every facet of real estate have rightfully earned him a reputation as a true expert in the field.


For anyone seeking unparalleled insight and experience in Bellport’s real estate market, Mark Petheram stands out as the go-to professional, embodying the very essence of dedication and expertise.


Licensed Real Estate Broker | Owner
126 S Country Rd, Bellport, NY 11713

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Old Purchase Properties is a full service independent real estate agency located in the heart of Bellport Village. Established in 1979, our experienced team continues to be the leader in home sales in the Bellport, Brookhaven and East Patchogue area. We value personal connection and we truly look forward to connecting with you!