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5 Frost Valley RoadMount Sinai, NY 11766

For Sale

$1,299,990

Smart Buyer Rebate $13,000

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.

Listed by Lisa M. Godt

·

Signature Premier Properties

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631-751-2111

Last updated March 11, 2026

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Source: OneKey #962258

Listing Facts

  • TypeSingle-family
  • NeighborhoodMount Sinai
  • Bedrooms4
  • Bathrooms3
  • Days on Prevu19
  • Taxes$22,209.31/year
  • Size3,038 sqft
  • Price per sqft$428

Amenities

  • Dishwasher
  • Washer/Dryer
  • Air Conditioning
  • Parking
  • Swimming Pool

Location

Mortgage Calculator

Listing History

02/26/2026
Status changed to Active
$1,299,990
02/25/2026
Listed by Signature Premier Properties
$1,299,990

Property Details for 5 Frost Valley Road

Exterior

Construction

  • Property Condition: Updated/Remodeled
  • Window Features: Double Pane Windows
  • Year Built: 2000
  • Architectural Style: Colonial
  • Construction Materials: Frame, Stone, Vinyl Siding
  • Exterior Features: Lighting, Mailbox, Rain Gutters

Features

  • Fencing: Back Yard, Fenced
  • Pool Features: Electric Heat, In Ground, Pool Cover, Salt Water, Vinyl
  • Pool Private: Yes

Measurements

  • Building Area Total: 3,038
  • Building Area Units: Square Feet
  • Lot Size Acres: 0.78
  • Lot Size Square Feet: 33,977

Financial

Taxes

  • Parcel Number: 0200-093-00-06-00-034-000
  • Tax Annual Amount: $22,209.31
  • Tax Year: 2025

Interior

Features

  • Appliances: Dishwasher, Dryer, Electric Oven, Gas Cooktop, Microwave, Refrigerator, Stainless Steel Appliance(s), Washer
  • Fireplace Features: Family Room
  • Fireplace: Yes
  • Fireplaces Total: 2
  • Flooring: Carpet, Hardwood
  • Interior Features: Built-in Features, Cathedral Ceiling(s), Ceiling Fan(s), Chandelier, Chefs Kitchen, Crown Molding, Double Vanity, Eat-in Kitchen, Entrance Foyer, Formal Dining, High Ceilings, Kitchen Island, Open Floorplan, Open Kitchen, Primary Bathroom, Quartz/Quartzite Counters, Recessed Lighting, Soaking Tub, Storage, Tray Ceiling(s), Walk-In Closet(s)

Measurements

  • Living Area: 3,038
  • Living Area Source: Public Records

Rooms

  • Basement: Finished, Full, Storage Space, Walk-Out Access
  • Has Basement: Yes
  • Bathrooms Full: 2
  • Bathrooms Half: 1
  • Bathrooms Total Integer: 3
  • Bedrooms Total: 4
  • Rooms Total: 9

Other

Location

  • Subdivision Name: Mount Sinai Hills

Parking

Parking

  • Garage Spaces: 2
  • Garage: Yes
  • Parking Features: Attached, Driveway, Garage

Schools

Elementary School

  • Elementary School: Mt Sinai Elementary School
  • Elementary School District: Mount Sinai

High School

  • High School: ROBERT M GRABLE JR MOUNT SINAI HIGH SCHOOL
  • High School District: Mount Sinai

Middle or Junior School

  • Middle Or Junior School: Mt Sinai Middle School
  • Middle Or Junior School District: Mount Sinai

Utilities

Equipment

  • Cooling: Central Air
  • Heating: Forced Air, Natural Gas
  • Laundry Features: Laundry Room
  • Sewer: Cesspool
  • Utilities: Cable Connected, Electricity Connected, Natural Gas Connected, Trash Collection Public, Underground Utilities, Water Connected
  • Water Source: Public

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 4 bedrooms and 3 bathrooms in this single-family home at 5 Frost Valley Road.

What schools are nearby to 5 Frost Valley Road?

Nearby schools include the Mt Sinai Elementary School, Mt Sinai Middle School, and ROBERT M GRABLE JR MOUNT SINAI HIGH SCHOOL.

Does this single-family home have parking?

Yes, there are 2 parking spaces available for 5 Frost Valley Road.

What are the annual taxes for 5 Frost Valley Road?

Annual taxes for this single-family home are estimated at $22,209.

How does 5 Frost Valley Road compare to other single-family homes in Mount Sinai?

This single-family home is listed 60% above the average price for single-family homes in Mount Sinai and has been on the market for 55 less days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 3,038 sqft.

5 Frost Valley Road is a 4-bedroom, 3-bath single-family home for sale in Mount Sinai NY 11766. Available on Prevu for 19 days at $1,299,990. This home features 3,038 square feet of living space, located in Mount Sinai. The median listing price for single-family homes in this area is $642,500. Nearby schools include Mt Sinai Elementary School, Mt Sinai Middle School, and ROBERT M GRABLE JR MOUNT SINAI HIGH SCHOOL. The home offers dishwasher, air conditioning, parking, swimming pool, and washer/dryer. Explore more single-family home listings in Suffolk County.

The data relating to real estate for sale on this website comes in part from the IDX Program of OneKey™ MLS. 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. This information is provided exclusively for consumers’ personal, non-commercial use. Information Copyright 2026, OneKey™ MLS. All Rights Reserved.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.