Contra Costa County property record for 4840 Alro Ave, Concord, CA 94521
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,294 sqft · built 1961 |
| Lot Size | 0.188 acres (8,190 sqft) |
| Owner | Company Name on Record |
| Last Sale | $390,000 (Dec 2003) |
| Tax Bill | $7,130 (2025) |
| Deeds & Mortgages | Jan 2022 Transfer Nov 2020 Transfer |
| Flood Zone | Zone X (moderate risk) |
| APN | 116-262-020-5 |
| Primary APN | 116-262-020-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,294 sqft Living Area |
| 1st Floor Area | 1,294 sqft |
| Year Built | Built 1961 |
|---|---|
| Effective Year Built | Effective 1961 |
| Lot Area | 8,190 sqft (0.188 acres) |
| Garage Type | Attached |
| Garage Area | 396 sqft |
| Parking Spaces | 1 Parking Space |
| Heating System | Central |
|---|
| Street Address | 4840 ALRO AVE |
|---|---|
| City | CONCORD |
| State | CA |
| Zip | 94521-2117 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R7 |
| Legal Description | TRACT 2939 26 |
| Legal Subdivision | SUBDIVISION 2939 |
| Legal Tract | 2939 |
| Legal Lot Number | 26 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2011 |
| Census Tract | 333101 |
Source: Contra Costa County records, as of July 14, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 4840 ALRO AVE, CONCORD, CA 94521-2117 |
| Owner Type | Company |
| Vesting | Trust |
| Date | Document |
|---|---|
| Jan 11, 2022 | Intrafamily Transfer, Transfer |
| Nov 13, 2020 | Quit Claim Deed, Transfer CORNERSTONE TITLE COMPANY, CORNERSTONE TITLE CO |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Dec 8, 2003 · Amount on Record |
| Deed Sale | Dec 8, 2003 · Amount on Record |
| Prior Sale | May 14, 1999 · Amount on Record |
| Deed Document Number | 2003592832 |
| Last Transfer Date | Jan 10, 2022 |
| Transfer Doc | 0000006672 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jan 11, 2022 |
| Property Address | 4840 ALRO AVE, CONCORD, CA 94521-2117 |
| Document Number | 0000006672 |
| Map Reference | MB 83 PG 1&2 |
| Instrument Date | Jan 10, 2022 |
| Instrument | 2022-006672 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 4840 ALRO AVE, CONCORD, CA 94521-2117 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Nov 13, 2020 |
| Property Address | 4840 ALRO AVE, CONCORD, CA 94521-2117 |
| Document Number | 0000273321 |
| Instrument Date | Nov 4, 2020 |
| Instrument | 273321 |
| Transaction Type | Transfer |
| Record Updated | Nov 24, 2020 |
| Title Company | CORNERSTONE TITLE COMPANY, CORNERSTONE TITLE CO |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Separate Estate/Property |
| Address | 4840 ALRO AVE CONCORD CA 945212117, CONCORD, CA 94521-2117 |
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Concord City |
| Unified School District | Mount Diablo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $565,568 (+2%) Land $319,038 Building $246,530 | |
| 2025 | $7,130.00 (+4.67%) | $554,480 (+4.04%) Land $312,783 Building $241,697 |
| 2023 | $6,812.00 (+1.4%) | $532,950 Land $300,638 Building $232,312 |
| 2022 | $6,718.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective October 12, 2026
| FEMA Flood Zone | Zone X moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| 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 | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond 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 | CONTRA COSTA WATER DISTRICT serves 210,500 people · EPA ID CA0710003 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jan 2022 |
| Lead | Under 1 ppb (2026–2028) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| 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 633 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable | 1,500 / 50 |
| Unwired Fixed Wireless | 300 / 25 |
| AT&T DSL | 100 / 20 |
May also be available: Verizon.
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