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Rainer Jessen

Rainer Jessen
Real Estate Agent (Salesperson)
Mount Sinai NY

Salesperson (NY: 40JE0877930)

30 years experience

REALTOR® 8 Active Listings Serves Suffolk County, NY
View on Realtor.com

Contact Information

Brokerage
Coldwell Banker American Homes
Office Address
276 Rte 25a
Mount Sinai, NY  11766
(Suffolk County)
Office Phone
631-331-3700
Office Fax
631-331-9601
Mobile
631-786-4992
Email
rain*********@*****.com
Show Email for $5

Service Areas

Miller Place: NY Mount Sinai: NY Coram: NY Selden: NY Port Jefferson Station: NY Terryville: NY Setauket-East Setauket: NY Belle Terre: NY Port Jefferson: NY Nesconset: NY Lake Ronkonkoma: NY East Shoreham: NY Shoreham: NY Rocky Point: NY Ridge: NY

About Rainer Jessen

Rainer Jessen brings nearly two decades of expertise in the Suffolk County real estate market, having initiated his career with a keen interest in investment properties. This early fascination quickly evolved into a dedicated passion for real estate, leading him to specialize in a diverse range of services, including residential listings, condominiums, land sales, new construction, commercial transactions, and rental properties. His extensive knowledge covers both the North and South Shores of Suffolk County, and throughout his 19-year career, he has successfully completed over 1,000 transactions.

What distinguishes Rainer in the competitive real estate landscape is his unwavering honesty and strong work ethic. His dedication has fostered a robust referral network and a loyal clientele who repeatedly choose him for their real estate needs. Rainer is adept at navigating challenges that may arise during transactions, such as permit issues and missing certificates of occupancy, and he excels in negotiation, ensuring favorable outcomes for his clients.

A lifelong resident of Port Jefferson Station, Rainer currently resides in Miller Place with his wife and four children. His entrepreneurial spirit was evident during his 16 years of ownership at the Ridge Deli, where he cultivated valuable community connections that laid the groundwork for his real estate career. Together with his wife, he established and successfully operated real estate firms in Coram and Ridge for over a decade before merging with Century 21 and later aligning with Coldwell Banker Residential Brokerage in Mount Sinai.

Rainer takes pride in being part of Coldwell Banker, a brokerage renowned for its exceptional reputation. His accomplishments include multiple Top Producer awards from Century 21 and various recognitions from Coldwell Banker, underscoring his commitment to excellence in the field.

In addition to his professional pursuits, Rainer is actively involved in his community as the Vice President of the Homeowners Association in Strathmore Ridge. His engagement is driven by a desire to enhance the community and increase property values, with the board making significant progress toward financial stability and fostering a family-friendly environment.

Rainer Jessen is dedicated to providing specialized real estate services tailored to meet the needs of his clients. For those looking to buy or sell, he invites you to reach out at 631-786-4992.

Suffolk County, NY Real Estate Market Analysis (Single Family Homes)

$1,963,002
Avg. Listing Price
From Rainer's portfolio
3.9 / 3.0
Avg. Beds/Baths
Typical property size
2,526 sf
Avg. Square Footage
Interior living space
6042
Active Listings
Current inventory

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Current Property Listings

As of 3/27/2026, Rainer Jessen has 8 properties for sale in Mount Sinai and surrounding areas.

$699,990

Listed 2026-02-12

63 Lakeside Trl
Ridge, NY  11961

Beds: 4.0
Baths: 2.0
Sq Ft: 1,848
Lot: 14,810 sf
Single Family Map
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$525,000

Listed 2025-12-08

108 McKinley Dr
Mastic Beach, NY  11951

Beds: 3.0
Baths: 2.5
Sq Ft: 1,850
Lot: 7,841 sf
Single Family Map
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$1,299,990

Listed 2026-01-19

3 Lotto Ct
Lake Grove, NY  11755

Beds: 5.0
Baths: 3.0
Sq Ft: 3,150
Lot: 21,780 sf
Single Family Map
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$1,249,990

Listed 2026-03-19

4 Lotto Court Rd
Lake Grove, NY  11755

Beds: 4.0
Baths: 3.0
Sq Ft: 3,150
Lot: 21,780 sf
Single Family Map
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$1,199,990

Listed 2026-03-12

1 Lotto Ct
Lake Grove, NY  11755

Beds: 5.0
Baths: 3.0
Sq Ft: 3,150
Lot: 21,780 sf
Single Family Map
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$699,999

Listed 2026-03-26

2 1st St
Coram, NY  11727

Beds: 5.0
Baths: 2.0
Sq Ft: 1,295
Lot: 10,890 sf
Single Family Map
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$1,249,990

Listed 2025-12-18

4 Lotto Ct
Lake Grove, NY  11755

Beds: 5.0
Baths: 3.0
Sq Ft: 3,150
Lot: 21,780 sf
Single Family Map
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$774,990

Listed 2025-11-06

55 Hamptons Court Dr Unit 55
Eastport, NY  11941

Beds: 4.0
Baths: 2.5
Sq Ft: 3,406
Condos Map
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$649,990

Listed 2025-10-08

26 Forest Ave
Port Jefferson Station, NY  11776

Beds: 3.0
Baths: 2.0
Sq Ft: 1,994
Lot: 11,761 sf
Single Family Map
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$599,900

Listed 2025-07-24

4 Tulip Grove Dr
Lake Grove, NY  11755

Beds: 3.0
Baths: 2.5
Sq Ft: 2,100
Lot: 10,890 sf
Single Family Map
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Current Property Rentals

As of 3/27/2026, Rainer Jessen has the following rental properties available in Mount Sinai and surrounding areas.

$4,350

Listed 2026-02-13

732 3rd St
Ronkonkoma, NY  11779

Beds: 5.0
Baths: 3.0
Sq Ft: 1,954
Lot: 10,890 sf
Single Family Map
View Full Details

$2,250

Listed 2026-03-16

5 Laramie Ct
Coram, NY  11727

Beds: 1.0
Baths: 1.0
Sq Ft: 750
Apartment Map
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