Sonoma County property record for 657 Alder Ct, Sonoma, CA 95476
| Property Type | Residential Vacant Land |
|---|---|
| Lot Size | 0.461 acres (20,076 sqft) |
| Owner | Company Name on File |
| Tax Bill | $1,385 (2025) |
| Deeds & Mortgages | Apr 2024 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 127-700-023-000 |
| Primary APN | 127-700-023-000 |
|---|---|
| Alternative APN |
|
| Lot Area | 20,076 sqft (0.461 acres) |
|---|
| Old Parcel Number | 127-700-023 |
|---|---|
| Street Address | 657 ALDER CT |
| City | SONOMA |
| State | CA |
| Zip | 95476 |
| Property Category | Residential |
| Property Type | Vacant Land > Residential |
| Local Zoning Code | R1 |
| Legal Description | 94 FM PT 127-291-010 & 11 ARMSTRONG ESTS LOT 23 |
| Legal Subdivision | ARMSTRONG EST |
| Legal Block | 3 |
| Legal Lot Number | 23 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | SONOMA |
| Census Block Group | 3 |
| Census Block | 3008 |
| Census Tract | 150204 |
657 Alder Ct, residential vacant land, is owned by a company that acquired it in May 2009.
Source: Sonoma County records, as of September 1, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | PO BOX 915, SONOMA, CA 95476-0915 |
| Owner Type | Company |
| Vesting | Limited Liability Partnership |
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 Transfer Date | May 3, 2009 |
| Transfer Doc | 0000094803 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Apr 22, 2024 |
| Property Address | 657 ALDER CT, SONOMA, CA 95476 |
| Document Number | 0000017013 |
| Map Reference | MB 511 PG 7-13 |
| Instrument Date | Feb 7, 2024 |
| Instrument | 2024017013 |
| Transaction Type | Transfer |
| Record Updated | May 10, 2024 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | PO BOX 915, SONOMA, CA 95476-0915 |
The 2025 property tax bill for 657 Alder Ct was $1,385.
Source: Sonoma County assessment roll, as of September 1, 2026
| Type | Name |
|---|---|
| State | California |
| County | Sonoma County |
| Municipality | Sonoma City |
| Unified School District | Sonoma Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $100,980 (+2%) Land $100,980 | |
| 2025 | $1,385.00 | $99,000 Land $99,000 |
| 2023 | $1,345.00 (+0.9%) | $95,156 Land $95,156 |
| 2022 | $1,333.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 657 Alder Ct in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1998.
Source: FEMA National Flood Hazard Layer, effective February 15, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 10 (0% premium discount) |
| Nearby Flood Policies | 3 in force |
| Nearby Flood Claims | 1 (1998) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Jan 1998 · rainfall accumulation |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Wildfire risk around 657 Alder Ct is low, with a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | Direct burnable vegetation |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CITY OF SONOMA serves 10,619 people · EPA ID CA4910012 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jul 2024 |
| Lead | Under 1 ppb (2021–2023) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 1 last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 540 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: T-Mobile.
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