Santa Clara County property record for 421 N 18th St, San Jose, CA 95112
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 936 sqft · built 1904 |
| Lot Size | 0.129 acres (5,625 sqft) |
| Owner | Company Name on Record |
| Tax Bill | $2,852 (2025) |
| Flood Zone | Zone D (undetermined) |
| APN | 249-59-031 |
| Primary APN | 249-59-031 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 936 sqft Living Area |
| Gross Area | 816 sqft |
| 1st Floor Area | 816 sqft |
| Utility Room | Utility Room |
| Year Built | Built 1904 |
|---|---|
| Effective Year Built | Effective 1904 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 5,625 sqft (0.129 acres) |
| Lot Dimensions | 125 ft deep x 45 ft wide |
| Garage Type | Carport |
| Garage Area | 100 sqft |
| Carport | Carport |
| Carport Area | 100 sqft |
| Porch | Porch |
| Cooling System | None |
|---|
| Street Address | 421 N 18TH ST |
|---|---|
| City | SAN JOSE |
| State | CA |
| Zip | 95112-1737 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | BLOCK 22 LOT 25 |
| Legal Subdivision | MONTGOMERY & REA |
| Legal Block | 22 |
| Legal Lot Number | 25 |
| Jurisdiction | SANTA CLARA CA |
| Township / Civil Division | SAN JOSE |
| Census Block Group | 3 |
| Census Block | 3003 |
| Census Tract | 501102 |
Source: Santa Clara County records, as of July 27, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 421 N 18TH ST, SAN JOSE, CA 95112-1737 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Aug 27, 1998 |
| Transfer Doc | 0014376920 |
| Record Updated | Sep 20, 2026 |
Source: Santa Clara County assessment roll, as of July 27, 2026
| Type | Name |
|---|---|
| State | California |
| County | Santa Clara County |
| Municipality | San Jose City |
| Unified School District | San Jose Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $55,137 (+2%) Land $17,400 Building $37,737 | |
| 2025 | $2,852.00 (+4.51%) Homeowner's exemption | $54,057 (+4.04%) Land $17,059 Building $36,998 |
| 2023 | $2,729.00 (+2.06%) Homeowner's exemption | $51,960 Land $16,398 Building $35,562 |
| 2022 | $2,674.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective January 18, 2026
| FEMA Flood Zone | Zone D undetermined · not studied |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
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 | SAN JOSE WATER private · serves 1,039,920 people · EPA ID CA4310011 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Mar 2026 |
| Lead | Under 1 ppb (2023–2025) action level 15 ppb |
| Water Quality | Treatment failure resolved · Jun 2023 |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None 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 847 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Sail Internet Fixed Wireless | 1,000 / 200 |
| Verizon Fixed Wireless | 1,000 / 75 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| Ridge Wireless Fixed Wireless | 100 / 60 |
May also be available: GeoLinks, T-Mobile.
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