NOT LISTED FOR SALE

3644 Spring Mountain Rd Saint Helena, CA 94574

Estimated Value: $6,505,000 - $6,906,037

4 Beds
5.5 Baths
6,136 Sq Ft
$1,095/Sq Ft Est. Value

Last Sold January 31, 2025

Last sale price $6,750,000 $1,100 Per Sq Ft

Est. 1% decrease in value since last sale

Current estimated payment $41,904/month

181 Days on Market

Highlights

  • Guest House
  • Wine Cellar
  • Heated Pool and Spa
  • Saint Helena Elementary School Rated A-
  • Home Theater
  • Rooftop Deck

About This Home

As of January 2025

Crowning a sun-drenched knoll on Spring Mountain, this ultra-modern estate redefines luxury living with innovative design and expansive vistas of mountains near and far, the Napa Valley floor, and hillside vineyards. This architectural masterpiece comfortably sleeps 14 and features soaring ceilings, stunning walls of glass, a breathtaking promenade, and seamless indoor-outdoor living areas. The primary suite on the main level offers a refuge with a spa-like experience, including a framed view of Mt. St. Helena, a luxurious bathroom, private offices, and a large walk-in closet with hidden storage. For the discerning buyer, the property offers an incredible wine room with storage bays, smart home technology, an elevator, and solar panels. For entertainment, the property includes a dedicated gym, a built-in barbeque, an infinity pool and spa, a vast outdoor entertaining area, walking trails, and a bocce ball court. Additionally, the 1,073 sq.ft. guest cottage features a private entrance, a wraparound deck with valley views, raised ceilings, and a kitchenette. Situated in a world-class destination, this estate offers unbounded luxury living where no detail has been missed, pushing the limits of your imagination.

Last Agent to Sell the Property

Carole Sauers

Golden Gate Sotheby's License #01800947 Listed on: 07/30/2024

Golden Gate Sotheby's

Last Buyer's Agent

Carole Sauers

Golden Gate Sotheby's License #01800947 Listed on: 07/30/2024

Golden Gate Sotheby's

Home Details

Home Type

  • Single Family

Year Built

  • Built in 2017

Lot Details

  • 59.68 Acre Lot
  • Landscaped
  • Sprinkler System

Parking

  • 3 Car Direct Access Garage
  • Garage Door Opener
  • Auto Driveway Gate

Property Views

  • Panoramic
  • Woods
  • Vineyard
  • Mountain
  • Mount Diablo
  • Hills
  • Valley

Home Design

  • Modern Architecture
  • Flat Roof Shape
  • Plaster
  • Stucco
  • Stone

Interior Spaces

  • 6,136 Sq Ft Home
  • 3-Story Property
  • Cathedral Ceiling
  • Skylights
  • Gas Fireplace
  • Window Treatments
  • Wine Cellar
  • Living Room with Fireplace
  • Home Theater
  • Home Office
  • Game Room
  • Storage Room

Kitchen

  • Butlers Pantry
  • Built-In Electric Oven
  • Gas Cooktop
  • Warming Drawer
  • Microwave
  • Built-In Refrigerator
  • Dishwasher
  • Kitchen Island
  • Marble Countertops
  • Compactor
  • Disposal

Flooring

  • Wood
  • Tile

Bedrooms and Bathrooms

  • 4 Bedrooms
  • Primary Bedroom on Main
  • Walk-In Closet
  • Bathroom on Main Level
  • Quartz Bathroom Countertops
  • Tile Bathroom Countertop
  • Bathtub with Shower
  • Separate Shower

Laundry

  • Laundry Room
  • Stacked Washer and Dryer
  • Sink Near Laundry

Home Security

  • Security System Owned
  • Security Gate
  • Fire Suppression System

Eco-Friendly Details

  • Grid-tied solar system exports excess electricity
  • Solar Power System

Pool

  • Heated Pool and Spa
  • Heated In Ground Pool
  • Gas Heated Pool
  • Pool Cover

Outdoor Features

  • Courtyard
  • Rooftop Deck
  • Covered Patio or Porch
  • Outdoor Kitchen
  • Outbuilding
  • Built-In Barbecue

Additional Homes

  • Guest House

Utilities

  • Forced Air Zoned Heating and Cooling System
  • Radiant Heating System
  • Power Generator
  • Propane
  • Well
  • Septic System
  • Internet Available

Listing and Financial Details

  • Assessor Parcel Number 022-150-010-000

Home Details

Home Type

Single Family

Year Built

Built in 2017

Lot Details

59.68 Acres

Parking

3

Listing Details

  • Interior Amenities: Cathedral Ceiling, Skylight(s), Storage Area(s)
  • Type: Residential
  • Property Sub Type: Single Family Residence
  • Subtype Description: Detached
  • Directions To Property: From Hwy 29: Madrona Ave or Elmhurst Ave to Spring Mountain Rd. From Santa Rosa: Calistoga Rd to St. Helena Rd Spring Mountain Rd. Turn at sign to Keenan Winery.
  • Lot Size Acres: 59.6800
  • Stories: 3
  • ArchitecturalStyle: Modern/High Tech
  • Reso Window Features: Window Coverings
  • Special Features: None

Interior Features

  • Appliances: Built-In Electric Oven, Built-In Refrigerator, Compactor, Dishwasher, Disposal, Gas Cook Top, Microwave, Warming Drawer, Other
  • Number Of Fireplaces: 1
  • Bedrooms: 4
  • Half Bathrooms: 1
  • Full Bathrooms: 5
  • Dining Room Features: Dining/Living Combo
  • Living Room Features: Cathedral/Vaulted, Sunken, View
  • Flooring: Tile, Wood
  • Square Footage: 6136.00
  • Bathroom Features: Quartz, Shower Stall(s), Tile, Tub w/Shower Over
  • Bathrooms: 6
  • Fireplace Features: Gas Piped, Living Room
  • Kitchen Features: Butlers Pantry, Island w/Sink, Marble Counter, Pantry Cabinet
  • Room Type: Game Room, Kitchen, Laundry, Living Room, Primary Bathroom, Primary Bedroom, Media Room, Office, Storage, Wine Cellar
  • Lower Level: Bedroom(s), Full Bath(s), Garage
  • Main Level: Full Bath(s), Kitchen, Living Room, Primary Bedroom, Partial Bath(s)
  • Spa Features: Spa/Hot Tub Built-In
  • PrimaryBedroomFeatures: Sitting Area, Walk-In Closet

Exterior Features

  • Construction Materials: Plaster, Stone, Stucco, Other
  • Lot Features: Auto Sprinkler F&R, Landscape Back, Landscape Front
  • Roof: Flat
  • ExteriorFeatures: BBQ Built-In, Kitchen, Uncovered Courtyard
  • Fencing: Partial
  • OtherStructures: Guest House, Outbuilding, Other
  • Patio And Porch Features: Covered Patio, Roof Deck, Uncovered Deck
  • Pool Features: Built-In, Gas Heat, Pool Cover, Pool/Spa Combo
  • View: Hills, Mountains, Mt Diablo, Panoramic, Valley, Vineyard, Woods

Garage/Parking

  • Parking Features: Attached, Covered, Detached, Garage Door Opener, Interior Access
  • Total Parking Spaces: 10.00
  • Garage Spaces: 3.00
  • Driveway/Sidewalks: Gated, Paved Driveway

Utilities

  • Cooling: Central, MultiUnits, MultiZone, Room Air, Other
  • Electric: PV-On Grid
  • Security Features: Fire Suppression System, Security Gate, Security System Owned
  • Sewer: Septic System
  • Utilities: Generator, Internet Available, Propane Tank Owned, Solar
  • Water Source: Well
  • Heating: Central, Fireplace(s), MultiZone, Radiant, Other
  • Laundry Features: Cabinets, Inside Area, Sink, Washer/Dryer Stacked Included

Lot Info

  • Assessor Parcel Number: 022-150-010-000
  • Lot Size Sq Ft: 2599661.00

Building Info

  • Year Built: 2017

Multi Family

  • Second Unit Kitchen: Yes
  • Second Unit Occupied: No
  • Second Unit Partial Bathrooms: 0
  • Second Unit Type: Detached

Ownership History

Date Name Owned For Owner Type

Purchase Details

Listed on
Jul 30, 2024
Closed on
Jan 28, 2025
Sold by
Herne Road Llc
Bought by
Kiraly Family Living Trust and Kiraly
Seller's Agent
Carole Sauers
Golden Gate Sotheby's
Buyer's Agent
Carole Sauers
Golden Gate Sotheby's
List Price
$9,950,000
Sold Price
$6,750,000
Premium/Discount to List
-$3,200,000
-32.16%
Views
42
Current Estimated Value
$6,716,012

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Estimated Appreciation
-$33,988
Avg. Annual Appreciation
-0.44%

Purchase Details

Closed on
Sep 5, 2008
Sold by
Sternik Hans G and Sternik Lynn S
Bought by
Herne Road Llc

Purchase Details

Closed on
Dec 16, 2004
Sold by
Sternik Hans G and Sternik Lynn S
Bought by
Sternik Hans G and Sternik Lynn S

Purchase Details

Closed on
Mar 29, 2003
Sold by
Sternik Hans G and Sternik Lynn S
Bought by
Sternik Hans G and Sternik Lynn S

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$817,000
Interest Rate
5.72%
Mortgage Type
New Conventional

Purchase Details

Closed on
Jul 2, 2002
Sold by
Sternik Hans G and Sternik Lynn S
Bought by
Sternik Hans G and Sternik Lynn S

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$813,000
Interest Rate
6.78%

Purchase Details

Closed on
Mar 20, 1997
Sold by
Sternik and Lynn
Bought by
Sternik Hans G and Sternik Lynn S
Source: Public Records

Range of Values:

--
Value Increase
--
Percent Increase
--
Adjusted for Inflation
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Average Value
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List Price
Sold Price
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Purchase History

Date Buyer Sale Price Title Company
Kiraly Family Living Trust $6,750,000 Placer Title
Herne Road Llc -- First American Title Co Napa
Sternik Hans G -- Fidelity National Title Co
Sternik Hans G -- Fidelity National Title
Sternik Hans G -- Fidelity National Title Co
Sternik Hans G -- --
Source: Public Records

Mortgage History

Date Status Borrower Loan Amount
Previous Owner Sternik Hans G $817,000
Previous Owner Sternik Hans G $813,000
Source: Public Records

Property History

Date Event Price List to Sale Price per Sq Ft
01/31/2025 01/31/25 Sold $6,750,000 -32.2% $1,100 / Sq Ft
01/27/2025 01/27/25 Pending -- -- --
07/30/2024 07/30/24 For Sale $9,950,000 -- $1,622 / Sq Ft
Source: Bay Area Real Estate Information Services (BAREIS)

Tax History

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2025 $78,916 $7,488,002 $2,305,094 $5,182,908
2024 $77,340 $7,341,180 $2,259,897 $5,081,283
2023 $77,340 $7,197,236 $2,215,586 $4,981,650
2022 $74,168 $7,056,115 $2,172,144 $4,883,971
2021 $73,207 $6,917,760 $2,129,553 $4,788,207
2020 $72,464 $6,846,828 $2,107,718 $4,739,110
2019 $71,210 $6,712,578 $2,066,391 $4,646,187
2018 $70,059 $6,580,960 $2,025,874 $4,555,086
2017 $68,755 $6,451,922 $1,986,151 $4,465,771
2016 $67,314 $6,325,414 $1,947,207 $4,378,207
2015 $59,087 $5,520,643 $1,917,959 $3,602,684
2014 $51,857 $4,831,973 $1,880,389 $2,951,584
Source: Public Records

Agents Affiliated with this Home

  • Carole Sauers

    Seller's Agent in 2025

    Carole Sauers

    Golden Gate Sotheby's

    (707) 888-1256

    96 Total Sales

    Carole Sauers
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Map

Source: Bay Area Real Estate Information Services (BAREIS)

MLS Number: 324036699

Bay Area Real Estate Information Services (BAREIS)

APN: 022-150-010

California Napa County Saint Helena 94574

3644 Spring Mountain Rd, Saint Helena, CA

Not Listed for Sale

Detached

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Bay Area Real Estate Information Services (BAREIS) Listing information deemed reliable but not guaranteed. Copyright 2026 Bay Area Real Estate Information Services, Inc. All Right Reserved.

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