As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2025
$701 (+19.4%)
$20,865
2024
$587
$20,865
2023
$587 (+2.7%)
$20,865
2022
$571
$20,456
2021
$571 (+0.3%)
$20,055
2020
$569 (+0.5%)
$19,662
2019
$567 (+8.7%)
$19,461
2018
$521 (+0.5%)
$19,080
2017
$519 (+0.8%)
$14,349
2016
$515 (−0.2%)
$14,349
2015
$516 (−0.6%)
$14,068
2014
$519 (+2.5%)
$13,586
2012
$506 (−1.4%)
$13,525
2011
$514 (+18.6%)
$13,260
2010
$433 (−0.9%)
$48,349
2009
$437 (+0.2%)
$48,300
2008
$436
$48,300
Tax history for 9 Del Rio Ct
Year
Property tax
Land + Additions
Assessment*
2025
$701 (+19.4%)
$20,865
2024
$587
$20,865
2023
$587 (+2.7%)
$20,865
2022
$571
$20,456
2021
$571 (+0.3%)
$20,055
2020
$569 (+0.5%)
$19,662
2019
$567 (+8.7%)
$19,461
2018
$521 (+0.5%)
$19,080
2017
$519 (+0.8%)
$14,349
2016
$515 (−0.2%)
$14,349
2015
$516 (−0.6%)
$14,068
2014
$519 (+2.5%)
$13,586
2012
$506 (−1.4%)
$13,525
2011
$514 (+18.6%)
$13,260
2010
$433 (−0.9%)
$48,349
2009
$437 (+0.2%)
$48,300
2008
$436
$48,300
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Feb 12, 2019 • Final
Mobile homes
Addition
Jun 28, 2018 • Final
Accessory bld occ
Install or repair a tie down system.
ADU
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
Mobile Home Information
Is Mobile Home
Lot Information
County Use Description: MOBILE HOME
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: —
Baths: —
Sq. Ft.: —
Stories: —
Lot Size: —
Style: Mobile/Manufactured Home
Year Built: —
Year Renovated: —
County: Napa County
APN: 910008015000
Home facts updated by county records on Jul 15, 2026
Around this home
Schools
Saint Helena Elementary School
Public 3-5 • Assigned • 0.9mi
8/10
Robert Louis Stevenson Intermediate School
Public 6-8 • Assigned • 0.9mi
4/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
9/10 Flood Factor
Estimated 80%+ chance of a flood reaching the building in the next 30 years
4/10 Fire Factor
2% chance of being in a wildfire in next 30 years
5/10 Heat Factor
9 days above 99° expected this year, 19 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, 22 days in 30 years
Provided by First Street
Historical weather
Saint Helena, CA • 94574
Average low and high temperatures (°F)
59
39
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41
67
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76
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83
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83
53
89
56
84
54
75
49
61
43
57
41
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
Try the sun simulator tool to see how light moves across the property at different times of day and year.