Welcome to this exceptional, fully renovated postmodern Colonial nestled north of 25A in desirable Mount Sinai. Showcasing refined craftsmanship and timeless elegance, this magnificent residence offers gleaming hardwood floors and custom moldings throughout, beginning with a breathtaking two-story entry foyer highlighted by a dramatic sweeping staircase.
Entertain in style in the formal living room with vaulted ceilings and the elegant, banquet-sized formal dining room - perfect for hosting memorable gatherings. A beautifully appointed home office provides private and sophisticated space for work or study.
The heart of the home is the newly renovated chef's kitchen, featuring custom cabinetry, center island, quartz countertops, designer backsplash, professional grade appliances, and a sunny breakfast area with sliders to deck. The kitchen flows seamlessly into the large den with fireplace and floor-to-ceiling windows overlooking the lush, private backyard - creating the perfect setting for both everyday living and entertaining.
Upstairs, retreat to the grand primary suite, complete with a tray ceiling, fireplace, and a spa-inspired, newly renovated en-suite bath featuring a custom marble steam shower, mosaic tile flooring, freestanding soaking tub, and double vanity. Three additional generously sized bedrooms and a beautifully updated full bath with double sinks complete the second level.
The fully finished walk-out lower level adds incredible living space, offering a fitness room, game room, and media room - ideal for recreation, relaxation, or extended living. Updates Include New A/C & Heating Units (2016), New Water Heater (2017), New Composite Deck (2020), New Pool Liner (2021), New Architectural Roof (2022), New Rear Door Slider & Basement French Doors (2022), New Front Arch Windows & New Front Siding (2023), New Heat Pump for Pool (2023), New Garage Door Openers (2023), New Sump Pump Systems & Battery Back-ups (2024), Newly Renovated Primary Bathroom (2024), Newly Renovated Kitchen, Cooktop, Rangehood, Oven Appliances (2024), New Pool Pump (2025), New Electrical Panel, Meter Box & New Main Line From Street From PSEG (2025), New Driveway & French Drainage System (2025).
Step outside to your maintenance-free deck overlooking a spectacular, private resort-style backyard with a heated saltwater inground pool, waterfall feature, and expansive rolling lawn - your own private oasis for entertaining or unwinding in total tranquility.
For sale
$1,299,990
5 Frost Valley Road, Mount Sinai, NY 11766
4beds
3,038sqft
Single Family Residence, Residential
Built in 2000
0.78 Acres Lot
$-- Zestimate®
$428/sqft
$-- HOA
What's special
- 28 days |
- 4,713 |
- 288 |
Zillow last checked: 7 hours ago
Listing updated: March 11, 2026 at 09:00am
Listing by:
Signature Premier Properties 631-751-2111,
Lisa M. Godt 516-650-4279
Source: OneKey® MLS as distributed by MLS GRID,MLS#: 962258
Tour with a local agent
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 3
- Full bathrooms: 2
- 1/2 bathrooms: 1
Primary bedroom
- Description: Grand Primary Suite With Tray Ceiling, Fireplace, Walk-In Closet and Newly Renovated En-suite Bathroom
- Level: Second
Bedroom 2
- Description: Bedroom #2 With Bay Window & Custom Moldings
- Level: Second
Bedroom 3
- Description: Bedroom #3 With Built-Ins
- Level: Second
Bedroom 4
- Description: Bedroom #4 With Double Window Overlooking Backyard
- Level: Second
Primary bathroom
- Description: Newly Renovated Luxurious Primary Bathroom With Custom Marble Steam Shower, Mosaic Tile Floor, Freestanding Spa Tub & Double Vanity
- Level: Second
Bathroom 1
- Description: Opulent Powder Room With Custom Marble Walls & Floor
- Level: First
Bathroom 2
- Description: Renovated Hall Bathroom With Double Sink & Tub/Shower
- Level: Second
Den
- Description: Large Den Open To Kitchen With Hardwood Floors, Fireplace & Floor To Ceiling Windows Overlooking Private Yard
- Level: First
Dining room
- Description: Formal Dining Room With Hardwood Floors & Custom Moldings Overlooking Backyard
- Level: First
Kitchen
- Description: Newly Renovated Eat-In Kitchen With Custom Cabinetry, Center Island, Quartz Counters, Custom Backsplash, Professional Appliances& Breakfast Area With Sliders to Deck
- Level: First
Laundry
- Description: Laundry/Mud Room Off Garage With Custom Built-Ins For Storage
- Level: First
Living room
- Description: Formal Living Room With Vaulted Ceiling, Gleaming Hardwood Floors, and Custom Moldings Open To Dining Room
- Level: First
Office
- Description: Beautifully Appointed Home Office or 5th Bedroom With Hardwood Floors, French Door, Custom Moldings & Bay Window Overlooking Front Yard
- Level: First
Heating
- Forced Air
Cooling
- Central Air
Appliances
- Included: Dishwasher, Dryer, Electric Oven, Gas Cooktop, Microwave, Refrigerator, Stainless Steel Appliance(s), Washer
- Laundry: Laundry Room
Features
- Built-in Features, Cathedral Ceiling(s), Ceiling Fan(s), Chandelier, Chefs Kitchen, Crown Molding, Double Vanity, Eat-in Kitchen, Entrance Foyer, Formal Dining, Kitchen Island, Open Floorplan, Open Kitchen, Primary Bathroom, Quartz/Quartzite Counters, Recessed Lighting, Soaking Tub, Storage, Tray Ceiling(s)
- Flooring: Carpet, Hardwood
- Windows: Double Pane Windows
- Basement: Finished,Full,Storage Space,Walk-Out Access
- Attic: Unfinished
- Number of fireplaces: 2
- Fireplace features: Family Room
Interior area
- Total structure area: 3,038
- Total interior livable area: 3,038 sqft
Property
Parking
- Total spaces: 2
- Parking features: Attached, Driveway, Garage
- Garage spaces: 2
- Has uncovered spaces: Yes
Features
- Levels: Three Or More
- Exterior features: Lighting, Mailbox, Rain Gutters
- Has private pool: Yes
- Pool features: Electric Heat, In Ground, Pool Cover, Salt Water, Vinyl
- Fencing: Back Yard,Fenced
Lot
- Size: 0.78 Acres
Details
- Parcel number: 0200093000600034000
- Special conditions: None
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Colonial
- Property subtype: Single Family Residence, Residential
Materials
- Stone, Vinyl Siding
- Foundation: Concrete Perimeter
Condition
- Updated/Remodeled
- Year built: 2000
Utilities & green energy
- Sewer: Cesspool
- Water: Public
- Utilities for property: Cable Connected, Electricity Connected, Natural Gas Connected, Trash Collection Public, Underground Utilities, Water Connected
Community & HOA
Community
- Subdivision: Mount Sinai Hills
HOA
- Has HOA: No
Location
- Region: Mount Sinai
Financial & listing details
- Price per square foot: $428/sqft
- Tax assessed value: $941,510
- Annual tax amount: $22,209
- Date on market: 2/25/2026
- Cumulative days on market: 21 days
- Listing agreement: Exclusive Right To Sell
- Electric utility on property: Yes
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
Price history
| Date | Event | Price |
|---|---|---|
| 2/25/2026 | Listed for sale | $1,299,990+80.8%$428/sqft |
Source:  OneKey® MLS as distributed by MLS GRID #962258 Report a problem | ||
| 4/26/2007 | Sold | $719,000-1.9%$237/sqft |
Source: Public Record Report a problem | ||
| 8/25/2004 | Sold | $733,000+70.1%$241/sqft |
Source: Public Record Report a problem | ||
| 10/6/2000 | Sold | $431,000$142/sqft |
Source: Public Record Report a problem | ||
Public tax history
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2024 | -- | $4,990 |
| 2023 | -- | $4,990 |
| 2022 | -- | $4,990 |
| 2021 | -- | $4,990 |
| 2020 | -- | $4,990 |
| 2019 | -- | $4,990 |
| 2018 | -- | $4,990 |
| 2017 | $18,404 | $4,990 |
| 2016 | -- | $4,990 |
| 2015 | -- | $4,990 -12.8% |
| 2014 | -- | $5,720 |
| 2013 | -- | $5,720 |
| 2012 | -- | $5,720 |
| 2011 | -- | $5,720 +1.2% |
| 2010 | -- | $5,650 |
| 2009 | -- | $5,650 |
| 2008 | -- | $5,650 |
| 2007 | $16,410 -1.6% | $5,650 -22.1% |
| 2005 | $16,677 +4.2% | $7,250 |
| 2004 | $15,997 +5.9% | $7,250 |
| 2003 | $15,109 -6.2% | $7,250 -6.9% |
| 2002 | $16,100 | $7,790 |
Find assessor info on the county website
BuyAbility℠ payment
Estimated monthly payment
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HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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Neighborhood: 11766
Nearby schools
GreatSchools rating
- 8/10Mount Sinai Middle SchoolGrades: 5-8Distance: 0.9 mi
- 10/10Mount Sinai High SchoolGrades: 9-12Distance: 0.6 mi
- 6/10Mount Sinai Elementary SchoolGrades: K-4Distance: 2.1 mi
Schools provided by the listing agent
- Elementary: Mt Sinai Elementary School
- Middle: Mt Sinai Middle School
- High: ROBERT M GRABLE JR MOUNT SINAI HIGH SCHOOL
Source: OneKey® MLS as distributed by MLS GRID. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
Local experts in 11766
- New York
- Suffolk County
- Mount Sinai
- 11766
- 5 Frost Valley Road
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