William Frattarola

Jefferson Valley NY

Houlihan Lawrence Inc.

45 Closed Sales

$22.7M Total Value

$352.5K - $999.2K Price Range

$503.5K Average Price

Prior 5 years

About William

William is an award-winning real estate Associate Broker with a few decades of extensive experience in Putnam and Northern Westchester Counties, specializing in residential real estate sales. He focuses his attention on providing his clients with top-notch customer service, personal attention, and professionalism. He offers strategic planning along with constant communication that will help you achieve your real estate goals.

He is a graduate of Penn State University with degrees in Real Estate and Finance. He has been a Top Producing Houlihan Lawrence agent for the 15 years in a row. William specializes in the towns of Mahopac, Carmel, Kent, Putnam Valley, Brewster, Patterson, Somers, Cortlandt Manor, and Yorktown.

Professional Associations & Designations
WCBR - Westchester County Board of Realtors, NYSAR - New York State Association of Realtors, EAMLS - Empire Access Multiple Listing Service, WPMLS -Westchester and Putnam Multiple Listing Service

Community Involvement
His service to the community includes 35 years as a volunteer life member of the Mahopac Ambulance/Fire Department and a retired ambulance captain.

Personal Interests
He is constantly improving his skills and market knowledge.

Real Estate Expertise
William has spent nearly his entire life in Putnam County, including 35 years as a volunteer of the Mahopac Ambulance/Fire Department. This has given him an in-depth knowledge of the area, as well as a vested interest and love for these neighborhoods.

Home Types: House, Townhouse, Lot/Land, MultiFamily, Condo

Years of Experience: 14

Education: Penn State University

Transaction History

1 Year
2 Year
5 Year

Seller Deals

Total Deals

Total Value

$4,449,500

Average Sale Price

$494,389

Price Range

$275K - $600K

Buyer Deals

Total Deals

Neighborhoods William is Experienced In

William's Active Listings

$599,900
- 3 Beds
- 2.5 Baths
- 1,753 Sq Ft
590 Farm To Market Rd

Brewster, NY
Welcome home to this beautiful classic Ranch, privately set back on a spectacular, stunningly landscaped property where nature can be appreciated year-round. Nestled into the gently rolling landscape, this charming one-of-a-kind custom country home offers warmth, comfort, privacy, and timeless appeal. Surrounded by flowering trees, shrubs, and natural rock outcroppings, the exceptional property

William Frattarola Houlihan Lawrence Inc.

$425,000
- 2 Beds
- 2 Baths
- 1,200 Sq Ft
116 Village Rd

Unit D

Yorktown Heights, NY
Sunny and spacious condo located in sought after Jefferson Village (55+) community located in Yorktown Heights, NY. Washer and dryer already installed for your convenience. Garage parking space included. In close proximity to the Jefferson Valley Mall and the Taconic State Parkway. Jefferson Village is a community of active seniors, enjoying all the amenities JV has to offer. Pool, tennis courts,

William Frattarola Houlihan Lawrence Inc.

Recently Sold

$600,000 Sold Dec 30, 2025
- 3 Beds
- 2.5 Baths
- 2,000 Sq Ft
122 Fairmont Rd

Mahopac, NY
- $300/SF
- 22 Days On Market
- Current Est. Value $621K
William Frattarola Houlihan Lawrence Inc.

$503,000 Sold Dec 11, 2025
- 2 Beds
- 2.5 Baths
- 1,328 Sq Ft
68 Jonathan Dr

Unit 15D

Mahopac, NY
- 1% Above List
- $379/SF
- 22 Days On Market
- Current Est. Value $492K
William Frattarola Houlihan Lawrence Inc.

$495,000 Sold Dec 1, 2025
- 3 Beds
- 1.5 Baths
- 2,000 Sq Ft
457 Route 6n

Mahopac, NY
- 1% Below List
- $248/SF
- 34 Days On Market
- Current Est. Value $528K
William Frattarola Houlihan Lawrence Inc.

$537,500 Sold Sep 24, 2025
- 2 Beds
- 2 Baths
- 2,064 Sq Ft
19 Russ Rd

Mahopac, NY
- 2% Below List
- $260/SF
- 37 Days On Market
- Current Est. Value $564K
William Frattarola Houlihan Lawrence Inc.

$525,000 Sold Sep 17, 2025
- 3 Beds
- 2 Baths
- 1,920 Sq Ft
21 Oneonta Rd

Carmel, NY
- 5% Above List
- $273/SF
- 30 Days On Market
- Current Est. Value $527K
William Frattarola Houlihan Lawrence Inc.

$560,000 Sold Sep 8, 2025
- 3 Beds
- 1.5 Baths
- 1,800 Sq Ft
24 Rick Ln

Mahopac, NY
- 14% Below List
- $311/SF
- 65 Days On Market
- Current Est. Value $573K
William Frattarola Houlihan Lawrence Inc.

$599,000 Sold Sep 2, 2025
- 3 Beds
- 1.5 Baths
- 1,640 Sq Ft
287 Union Valley Rd

Mahopac, NY
- $365/SF
- 11 Days On Market
- Current Est. Value $622K
William Frattarola Houlihan Lawrence Inc.

$355,000 Sold Apr 2, 2025
- 1 Bed
- 1 Bath
- 1,028 Sq Ft
4 Marina Dr

Unit G2

Mahopac, NY
- 5% Below List
- $345/SF
- 22 Days On Market
William Frattarola Houlihan Lawrence Inc.

$275,000 Sold Apr 2, 2025
- Land
- 1.04 Acre Lot
27 Sun Hill Rd

Katonah, NY
- 8% Below List
- 14 Days On Market
- Current Est. Value $1M
William Frattarola Houlihan Lawrence Inc.

Awards and Designations

NAR - National Association of Realtors

Agent License: 30FR0495787 New York 30FR0495787

William Frattarola

(914) 352-7780

Homes for Sale by City

William Frattarola

About William

Transaction History

Seller Deals

Buyer Deals

Production Over Time

1 Year View by Quarter

Seller Deals

Buyer Deals

Seller Deals

Buyer Deals

Production Over Time

5 Year View

Neighborhoods William is Experienced In

William's Listings and Deals

William's Active Listings

Recently Sold

Awards and Designations