Private 15 acre estate building site with 8.5+ acres plantable in the Knights Valley appellation on coveted Franz Valley School Road. The oak studded drive leads to an idyllic building site overlooking a secluded meadow with hill views and includes CC&Rs to protect privacy. This exclusive enclave offers a serene natural setting, yet only 12 minutes to the shopping and restaurants of Calistoga, home to multiple luxury resorts. Abundant well water. Horses permitted. Slope analysis and soils reports available. The adjoining 28+ acres is also available for purchase and offers an additional 11 acres of vineyard potential. Develop together for an exceptional family estate. Also listed as MLS #22025440.
Vacant landProperty Type
15 acresLot Size
$147,830Price/Acres
Listed by Christine Hale•DRE #02088638• Engel & Volkers
•707-287-5782 (agent)
•christinehale04@yahoo.com (agent)
Listed by Will Densberger•DRE #01811932• Engel & Volkers
•707-483-7889 (agent)
•will@nvwineestates.com (agent)
Bought with David Fusco•DRE #01945174• Grobecker Holland International Inc.
Private 15 acre estate building site with 8.5+ acres plantable in the Knights Valley appellation on coveted Franz Valley School Road. The oak studded drive leads to an idyllic building site overlooking a secluded meadow with hill views and includes CC&Rs to protect privacy. This exclusive enclave offers a serene natural setting, yet only 12 minutes to the shopping and restaurants of Calistoga, home to multiple luxury resorts. Abundant well water. Horses permitted. Slope analysis and soils reports available. The adjoining 28+ acres is also available for purchase and offers an additional 11 acres of vineyard potential. Develop together for an exceptional family estate. Also listed as MLS#22020789.
BAREIS #22020789
Mar 12, 2021
Sold
$1,325,000
Mar 8, 2021
Pending
—
Mar 3, 2021
Contingent
—
Public Records
May 31, 2013
Sold
$980,000
Public Records
Jan 19, 2006
Sold
$1,550,000
Year
Property tax
Land + Additions
Assessment*
2025
$15,564 (+1.9%)
$1,497,906 + $1,215,000
$2,712,906
2024
$15,272 (+1.8%)
$1,434,222
2023
$15,003 (+4.0%)
$1,406,100
2022
$14,419 (+77.8%)
$1,378,530
2021
$8,111
$1,351,500
2020
$8,108 (−29.5%)
$768,000
2019
$11,494 (+1.3%)
$768,000
2018
$11,346 (+2.0%)
$1,081,826
2017
$11,118 (+3.7%)
$1,039,818
2015
$10,718 (+1.7%)
$1,019,430
2014
$10,542 (+9.0%)
$984,449
2013
$9,668 (+0.9%)
$984,449
2012
$9,585 (+2.6%)
$900,000
2011
$9,341 (−44.7%)
$900,000
2010
$16,884 (−1.2%)
$1,000,000
2009
$17,088 (+2.2%)
$1,640,973
2007
$16,724
$1,612,620
Tax history for 8535 Franz Valley School Rd
Year
Property tax
Land + Additions
Assessment*
2025
$15,564 (+1.9%)
$1,497,906 + $1,215,000
$2,712,906
2024
$15,272 (+1.8%)
$1,434,222
2023
$15,003 (+4.0%)
$1,406,100
2022
$14,419 (+77.8%)
$1,378,530
2021
$8,111
$1,351,500
2020
$8,108 (−29.5%)
$768,000
2019
$11,494 (+1.3%)
$768,000
2018
$11,346 (+2.0%)
$1,081,826
2017
$11,118 (+3.7%)
$1,039,818
2015
$10,718 (+1.7%)
$1,019,430
2014
$10,542 (+9.0%)
$984,449
2013
$9,668 (+0.9%)
$984,449
2012
$9,585 (+2.6%)
$900,000
2011
$9,341 (−44.7%)
$900,000
2010
$16,884 (−1.2%)
$1,000,000
2009
$17,088 (+2.2%)
$1,640,973
2007
$16,724
$1,612,620
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Public record
Public record
Permits
Beds
4
Baths
3
Stories
1
Lot width
—
Lot depth
—
Lot size
15 Acres
Year renovated
2025
Sq. Ft.
2,411
Year built
2025
Style
Single Family Residential
County
Sonoma County
APN
120150048000
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Oct 28, 2026.
Jul 17, 2025 • Final
Building permit with plan check
New construction
May 9, 2025 • Final
Building permit with plan check
Install a roof-mounted solar pool heating system on a single-family home.
Electrical
Pool and hot tub
Solar
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Exterior
Exterior Features
Allows Horses: No
Fencing: Partial Cross
Property Information
Property Type: Land
Property Sub Type: Residential Acreage
Lot Information
Lot Size Square Feet: 653,400
Lot Size Acres: 15
Lot Size Source: Owner
Zoning Description: 2nd Unit Possible, Horses Allowed, Residential, Vineyard
Utilities
Utilities Information
Utilities: Phone Available
Sewer: TBD
Location
HOA Information
Association YN: No
Public facts
Beds: 4
Baths: 3.0
Sq. Ft.: 2,411
Stories: 1.0
Lot Size: 15 acres
Style: Single Family Residential
Year Built: 2025
Year Renovated: 2025
County: Sonoma County
APN: 120150048000
Home facts updated by county records on Oct 28, 2026
Around this home
Schools
K - 12
Preschool & daycare
Calistoga Elementary School
Public K-6 • Assigned • 4.4mi
6/10
Calistoga Junior/Senior High School
Public 7-12 • Assigned • 4.5mi
4/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
5/10 Fire Factor
5% chance of being in a wildfire in next 30 years
4/10 Heat Factor
7 days above 98° expected this year, 15 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
10/10 Air Factor
22 unhealthy days expected this year, 24 days in 30 years
Provided by First Street
Historical weather
Calistoga, CA • 94515
Average low and high temperatures (°F)
60
44
60
45
68
48
66
47
76
51
81
54
84
56
88
57
81
58
70
52
62
46
57
44
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 11.4 hours in
June and 4.9 hours in December, placing it above the
U.S. average for solar exposure.
11.4 hrs
4.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$2.11M – $2.55M
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