Nevada County property record for 20370 Big Spring Dr, Grass Valley, CA 95949
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 2,261 sqft · built 1994 |
| Lot Size | 39.5 acres (1,724,540 sqft) |
| Owner | Individual Name on File |
| Last Sale | $448,000 (Sep 2008) |
| Tax Bill | $6,546 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 054-390-010-000 |
| Primary APN | 054-390-010-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 3 Rooms |
| Stories | 1 Story |
| Building Area | 2,261 sqft Living Area |
| 1st Floor Area | 1,716 sqft |
| 2nd Floor Area | 545 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1994 |
|---|---|
| Effective Year Built | Effective 1994 |
| Architectural Style | Traditional |
| Lot Area | 1,724,540 sqft |
| Terrain | Steep |
| Porch | Porch |
| Patio Area | 2,261 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Water Source | Well |
| Old Parcel Number | 54-390-10-000 |
|---|---|
| Street Address | 20370 BIG SPRING DR |
| City | GRASS VALLEY |
| State | CA |
| Zip | 95949-7618 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | AG-X |
| Legal Description | LOT 17 ROCK CREEK #1 |
| Legal Subdivision | ROCK CREEK #1 |
| Legal Lot Number | 17 |
| Jurisdiction | NEVADA CA |
| Township / Civil Division | GRASS VALLEY |
| Census Block Group | 1 |
| Census Block | 1027 |
| Census Tract | 200 |
20370 Big Spring Dr is owned and occupied by an individual who acquired it in January 2010.
Source: Nevada County records, as of July 7, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 20370 BIG SPRING DR, GRASS VALLEY, CA 95949-7618 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Sep 22, 2008 · Amount on File |
| Deed Sale | Sep 22, 2008 · Amount on File |
| Prior Sale | May 16, 2008 · Amount on File |
| Deed Document Number | 200823140 |
| Last Transfer Date | Jan 11, 2010 |
| Transfer Doc | 0000001430 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 20370 Big Spring Dr was $6,546, up 2% from the year before.
Source: Nevada County assessment roll, as of July 7, 2026
| Type | Name |
|---|---|
| State | California |
| County | Nevada County |
| Secondary School District | Nevada Joint Union High School District (09 - 12) |
| Elementary School District | Pleasant Ridge Union Elementary School District (KG - 08) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $588,438 (+2%) Land $262,693 Building $325,745 | ||
| 2025 | $6,546.00 (+2.03%) | $576,901 Land $257,543 Building $319,358 | |
| 2024 | $6,416.00 (+4.7%) | ||
| 2023 | $6,128.00 (+1.96%) | $554,502 Land $247,544 Building $306,958 | $766,800 |
| 2022 | $6,010.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 20370 Big Spring Dr in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective August 20, 2024
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 20370 Big Spring Dr is very high, ranking above 91% of the US, with a 0.9% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Very High above 91% of the US · above 75% of California |
|---|---|
| Wildfire Likelihood | 0.9% annual chance |
| Exposure | Direct burnable vegetation |
Insurers in high-risk areas may require mitigation or decline coverage; check availability before making an offer.
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: FCC Broadband Data Collection, based on 10 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Starlink Satellite | 280 / 30 |
| DigitalPath Fixed Wireless | 200 / 20 |
| SmarterBroadband Fixed Wireless | 100 / 25 |
| Cal.net Fixed Wireless | 100 / 20 |
| Skyhi Broadband Fixed Wireless | 60 / 30 |
May also be available: AT&T.
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