$10,000 Closing Credit¹
#812971, Listing office: Michael Alexander Properties
$1,349,999 List price
20 Frost Valley Rd Mount Sinai, NY 11766
$10,000
Closing credit¹
5 beds
4 full, 1 partial
4,300 sqft
0.7 acres
$314 / sqft
House
Property details
About 20 Frost Valley Rd
This beautifully fully renovated 5-bedroom, 3.5-bath contemporary home is a true gem nestled on a serene no-outlet street within the highly sought-after Mount Sinai school district. Perfect for family living and entertaining, this home boasts: - A spacious wrap-around porch that invites relaxation and outdoor enjoyment. - An inground pool complete with a fun slide, surrounded by stylish pavers for a chic poolside experience. - An expansive finished attic featuring 2 octagon porches, ideal for a home office, play area, or additional living space. - A fully finished basement, providing versatile space for recreation or guest accommodation. - A state-of-the-art chef’s kitchen equipped with new appliances, perfect for culinary enthusiasts. - A 3-car garage that offers ample storage and convenience. The lush, well-maintained landscape enhances the home’s curb appeal, making it a picturesque retreat. With plenty of room for a possible mother-daughter setup, this home is perfect for multigenerational living or accommodating guests. Don’t miss your chance to own this exquisite property! Contact us today to schedule a viewing.
Highlights
Home typeSingle Family Residence
HeatingBaseboard, Natural Gas, Radiant, Radiant Floor
StatusActive
CoolingCentral Air, Zoned
Size4,300 sqft
BasementYes
Lot size0.7 Acres
Year built2006
MLS #873090
Garage3 spaces
Summary
- Partial Bathrooms: 1
- Full Bathrooms: 4
- Appliances: Dishwasher, Exhaust Fan, Freezer, Gas Oven, Gas Range, Microwave, Refrigerator, Stainless Steel Appliance(s), Gas Water Heater, Wine Cooler
- Basement: Yes
- Interior: First Floor Bedroom, First Floor Full Bath, Bidet, Breakfast Bar, Central Vacuum, Chefs Kitchen, Crown Molding, Double Vanity, Eat-in Kitchen, Entrance Foyer, Granite Counters, His and Hers Closets, In-Law Floorplan, Kitchen Island, Primary Bathroom, Master Downstairs, Open Floorplan, Open Kitchen, Pantry, Quartz/Quartzite Counters, Recessed Lighting, Soaking Tub, Storage, Walk Through Kitchen, Walk-In Closet(s), Washer/Dryer Hookup
- Total Bedroom Count: 5
- Garage Space: 3 spaces
- Exterior: Vinyl Fence
- Architectural Style: Contemporary
- Heating: Baseboard, Natural Gas, Radiant, Radiant Floor
- Cooling: Central Air, Zoned
- List Price: $1,349,999
- Price/SqFt: $313
- Annual Tax Amount: $19,163
- Tax Year: 2021
- Directions: use gps or google maps
- Year Built: 2006
- Living Area: 4,300 SqFt
- Lot Size: 0.7 Acres
- MLS Number: 873090
- MLS Name: ONEKEY2
- Office Name: Patriot Real Properties Gr LLC
- Office Phone: (631) 987-1280
Listings courtesy of OneKey MLS as distributed by MLS GRID.
All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Properties displayed may be listed or sold by various participants in the MLS.
The data relating to real estate for sale on this web site comes in part from the Broker Reciprocity Program of the OneKey™ MLS. Real Estate listings held by brokerage firms other than this broker are marked with the Broker Reciprocity logo and detailed information about them includes the name of the listing brokers. This information is provided exclusively for consumers’ personal, non-commercial use, that it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.
The source of the displayed data is either the property owner or public record provided by non-governmental third parties. It is believed to be reliable but not guaranteed.
Information Copyright 2025, OneKey™ MLS. All Rights Reserved.
Data displayed may be a portion of, and not a complete set of all listings published in the MLS.
This advertisement does not suggest that the broker has a listing in this property or properties or that any property is currently available.
Last updated on: 6/10/2025, 1:41:30 PM Eastern. If you have any questions regarding the accuracy of this data, please contact us at help@rockethomes.com.
Get an agent. Get a mortgage. Save big.¹
$1,349,999
20 Frost Valley Rd
$10,000
closing credit¹
Sell your home with Rocket and save even more!
Seller rebate
0.5% sale price²
Price information
Property sales
| Date | Event | Price |
|---|---|---|
| May 05, 2024 | Home Sold | $1,111,500 |
| Oct 08, 2004 | Home Sold | $760,000 |
| Aug 13, 2003 | Home Sold | $25,000 |
| Aug 13, 2003 | Home Sold | $275,000 |
Tax history
| Year | Assessment | Property Tax |
|---|---|---|
| 2023 | $5,700 | $- |
| 2022 | $5,700 | $- |
| 2021 | $5,700 | $19,163 |
| 2020 | $5,700 | $19,163 |
| 2019 | $5,700 | $20,241 |
| 2018 | $5,700 | $19,777 |
History based on county public records data.
Nearby schools
5
Port Jefferson Elementary School
Public District KG-6
0.9 mi
•500 Scraggy Hill Rd
7
Mount Sinai Elementary School
Public District KG-4
1.0 mi
•118 N Country Rd
2
Terryville Road School
Public District 3-5
2.6 mi
•401 Terryville Rd
School ratings are a score out of 10, where 10 is the highest and 1 is the lowest.
Neighborhood
The neighbors living near this home have an average income of $157,143. Most Mount Sinai, NY residents have annual incomes between $100k-200k. Most families are married, no kids. Residents of this area typically have post secondary degree education.
How much money do the neighbors make?
0%
<35k
10%
35k-100k
55%
100k-200k
35%
200k+
What level of education do the neighbors have?
High School Diploma
Post Secondary Degree
Masters Degree
Doctorate
What types of families live nearby?
19%
Single, No Kids
7%
Single, with Kids
40%
Married, No Kids
34%
Married, with Kids
Are the neighbors home owners or renters?
Home Owners
Renters
How old are people in this area?
13%
<11 yrs old
11%
12-17 yrs old
15%
18-34 yrs old
50%
35-64 yrs old
11%
65+ yrs old
What do the neighbors do for fun?
Skiing/snowboarding
Men's Tennis- Tennis
Where do the neighbors shop?
Nordstrom
Bloomingdales
Brooks Brothers
Where do the neighbors go to eat?
California Pizza Kitchen
Bonefish Grill
Qdoba
What do the neighbors drive?
BMW
Lexus
Acura
What do the neighbors listen to?
Talk/Personality
News
Sports
All data provided by Home Junction and Claritas
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Frequently asked questions
About 20 Frost Valley Rd
The listing price of 20 Frost Valley Rd property is $1,349,999.
The property 20 Frost Valley Rd is a house located in Mount Sinai, New York, 11766.
Active Listing: 20 Frost Valley Rd is For Sale (Active/New) which means the seller is accepting offers.
The nearby schools for 20 Frost Valley Rd are: Port Jefferson Elementary School (GreatSchools Rating 5/10), Mount Sinai Elementary School (GreatSchools Rating 7/10), Terryville Road School (GreatSchools Rating 2/10), Mount Sinai Middle School (GreatSchools Rating 5/10), Port Jefferson Middle School (GreatSchools Rating 7/10), John F Kennedy Middle School (GreatSchools Rating 4/10), Robert M Grable Jr Mount Sinai High School (GreatSchools Rating 9/10), Earl L Vandermeulen High School (GreatSchools Rating 9/10), Comsewogue High School (GreatSchools Rating 6/10).
According to the records, the last property tax for 2021 is $19,163 (source: MLS/based on county public records data).
The last sale was on May 5, 2024 for $1,111,500 (source: MLS/tax record).
The property at 20 Frost Valley Rd has 5 bedrooms and 4 full and 1 half bathrooms.
The property 20 Frost Valley Rd is 4,300 SqFt (source: MLS/tax record).
The year of construction for 20 Frost Valley Rd is 2006.
This home is located at 20 Frost Valley Rd in Mount Sinai, NY and zip code 11766 in the Town of Brookhaven neighborhood. This 4,300 square foot home, which was built in 2006, sits on a 0.70 acre lot. Features: 5 bedrooms, 5 bathrooms. It has been listed on Rocket Homes since June 4, 2025 and is currently priced at $1,349,999.
While more than 207 listings in Mount Sinai, NY in May 2025 were sold above asking price, there were more than 36 listings sold at asking price, and more than 113 were sold below. The number of listings in Mount Sinai, NY decreased by 2% between April and May 2025. While the average time on the market in May 2025 was 44 days, the median list price was $564,145.
From Rocket Homes Real Estate and based on county public records data.