John Hermanowski

Sayville NY

Signature Premier Properties

103 Closed Sales

$58.6M Total Value

$399K - $1.1M Price Range

$568.5K Average Price

Prior 5 years

About John

Jan is committed to providing an exceptionally high level of personalized service with Honesty, Integrity & Trust! He and his wife Christine have built their business on a very simple principle: “Take really good care of your clients & customers, treat them with respect, listen to their needs, keep them informed, fight for their best interests, make sure that one of their biggest financial & emotional transactions is a smooth & pleasant experience.”

Home Types: Townhouse, Condo, House, Co-op

Languages Spoken: English, Polish

Years of Experience: 15

Education: Long Island University C.W. Post Campus

Transaction History

1 Year
2 Year
5 Year

Seller Deals
Total Deals	10
Total Value	$7,116,000
Average Sale Price	$711,600
Price Range	$595K - $1M

Buyer Deals
Total Deals	8
Total Value	$5,518,000
Average Sale Price	$689,750
Price Range	$173K - $1.1M

1 Year View by Quarter

Seller Deals
Total Deals	26
Total Value	$16,985,250
Average Sale Price	$653,279
Price Range	$305K - $1M

Buyer Deals
Total Deals	16
Total Value	$10,594,500
Average Sale Price	$662,156
Price Range	$149K - $1.1M

2 Year View by Quarter

Seller Deals
Total Deals	65
Total Value	$36,149,750
Average Sale Price	$556,150
Price Range	$186K - $1M

Buyer Deals
Total Deals	38
Total Value	$22,410,000
Average Sale Price	$589,737
Price Range	$149K - $1.1M

5 Year View

John's Open Houses

Joint Agent

$585,000

Open Sat 11AM - 1PM
- 3 Beds
- 1.5 Baths
- 1,536 Sq Ft
210 Norwood Ave

Port Jefferson Station, NY
Welcome to this spacious and well-maintained 3-bedroom, 1.5-bath home offering a versatile layout and numerous updates. The home features a formal dining room, perfect for gatherings, along with a beautifully renovated kitchen, updated bathrooms, and a nicely finished basement. Multiple living spaces provide flexibility, including a comfortable den, sunroom, and a dedicated home office—ideal for

John Hermanowski Signature Premier Properties

John's Active Listings

Joint Agent

$3,199,000
- 5 Beds
- 7.5 Baths
- 10,122 Sq Ft
98 Cliff Rd

Port Jefferson, NY
Experience unparalleled luxury and architectural grandeur in this extraordinary 15,092-square-foot estate where exceptional craftsmanship and resort-style amenities converge. Privately set behind a gated entrance with a circular driveway, this magnificent residence situated on 1.8 acres offers 5 bedrooms, 8 bathrooms, a 4-car garage, and an impressive array of indoor and outdoor living spaces

John Hermanowski Signature Premier Properties

$925,000
- 4 Beds
- 3 Baths
- 2,342 Sq Ft
240 Kohr Rd

Kings Park, NY
Welcome to your new home! This unique Kings Park property is nestled on a picturesque and meticulously landscaped 1.2 acre oasis bordering the natural beauty of Sunken Meadow State Park. This spacious 4-bedroom, 3-full-bath Colonial offers the perfect blend of privacy, comfort, and versatility. Designed with a flexible open floor plan, the main level features a welcoming family room, dining room,

John Hermanowski Signature Premier Properties

Joint Agent

$1,300,000
- 4 Beds
- 3.5 Baths
- 2,200 Sq Ft
14 Penn Dr

Dix Hills, NY
Welcome to this exceptional 4-bedroom, 3.5-bathroom Ranch in Dix Hills. From the moment you arrive, you’ll be impressed by the professionally landscaped 1-acre property. Inside, the home showcases exquisite craftsmanship with detailed wainscoting, crown moldings, and soaring vaulted ceilings. The thoughtfully updated kitchen features modern finishes and flows seamlessly into the large den and

John Hermanowski Signature Premier Properties

Recently Sold

$1,025,000

Sold Apr 7, 2026
- 3 Beds
- 3 Baths
- 2,697 Sq Ft
24 Canterbury Rd

Rockville Centre, NY
- $380/SF
- 5 Days On Market
- Current Est. Value $1M
John Hermanowski Signature Premier Properties

$715,000

Sold Nov 24, 2025
- 3 Beds
- 1 Bath
178 Maple Dr

Saint James, NY
- 10% Above List
- 15 Days On Market
- Current Est. Value $709K
John Hermanowski Signature Premier Properties

$740,000

Sold Sep 25, 2025
- 4 Beds
- 2.5 Baths
- 2,340 Sq Ft
27 Summerfield Dr

Lake Grove, NY
- 4% Above List
- $316/SF
- 25 Days On Market
- Current Est. Value $762K
John Hermanowski Signature Premier Properties

$655,000

Sold Apr 15, 2025
- 3 Beds
- 2.5 Baths
- 2,660 Sq Ft
135 Fairfield Dr

Holbrook, NY
- 3% Above List
- $246/SF
- 12 Days On Market
- Current Est. Value $738K
John Hermanowski Signature Premier Properties

$747,000

Sold Feb 7, 2025
- 4 Beds
- 2.5 Baths
- 2,107 Sq Ft
105 Woodlawn Ave

Saint James, NY
- 7% Above List
- $355/SF
- 13 Days On Market
- Current Est. Value $794K
John Hermanowski Signature Premier Properties

$725,000

Sold Nov 26, 2024
- 4 Beds
- 2.5 Baths
- 2,041 Sq Ft
1 Quincy Ln

Smithtown, NY
- 4% Above List
- $355/SF
- 16 Days On Market
- Current Est. Value $825K
John Hermanowski Signature Premier Properties

$560,000

Sold Sep 10, 2024
- 5 Beds
- 4 Baths
7 Albright Rd

Coram, NY
- 4% Above List
- 24 Days On Market
- Current Est. Value $603K
John Hermanowski Signature Premier Properties

$430,000

Sold Aug 26, 2024
- 4 Beds
- 3.5 Baths
- 2,808 Sq Ft
1327 Elayne Ave

Bay Shore, NY
- 4% Below List
- $153/SF
- 1 Day On Market
- Current Est. Value $735K
John Hermanowski Signature Premier Properties

$740,000

Sold Jun 17, 2024
- 2 Beds
- 2 Baths
- 1,273 Sq Ft
78 Daisy Ave

Floral Park, NY
- 2% Above List
- $581/SF
- 27 Days On Market
- Current Est. Value $777K
John Hermanowski Signature Premier Properties

Awards and Designations

NAR - National Association of Realtors
GRI - Graduate REALTOR Institute
CBR - Certified Buyer Representative

John Hermanowski

(631) 743-4955

Homes for Sale by City

John Hermanowski

About John

Transaction History

Seller Deals

Buyer Deals

Production Over Time

1 Year View by Quarter

Seller Deals

Buyer Deals

Production Over Time

2 Year View by Quarter

Seller Deals

Buyer Deals

Production Over Time

5 Year View

John's Listings and Deals

John's Open Houses

John's Active Listings

Recently Sold

Awards and Designations