Contra Costa County property record for 4085 Nelson Ave, Concord, CA 94520 · Last verified July 2026
| Property Type | Industrial > Industrial Park |
|---|---|
| Year Built | Built 1989 |
| Square Footage | 25,344 sqft Gross Area |
| Lot Size | 4.67 acres |
| Last Sale | $28,774,000 (2011) |
| Tax Bill | $99,086.00 (2025) |
| Primary APN | 159-430-023-6 |
|---|---|
| Alternative APN |
|
| Total Rooms | 3 Rooms |
|---|---|
| Building Area | 25,344 sqft Gross Area |
| 1st Floor | 25,344 sqft 1st Floor |
| Stories | 1 Stories |
| Year Built | Built 1987 |
|---|---|
| Effective Year Built | Effective 1989 |
| Lot Area | 203,860 sqft |
| Street Address | 4085 NELSON AVE |
|---|---|
| City | CONCORD |
| State | CA |
| Zip | 94520-8546 |
| Property Usage | Industrial Property Usage |
| Type | Industrial > Industrial Park |
| Legal Description | REC OF SURVEY 82 L.S.M.13 LOT 12 |
| Legal Tract | 82LSM13 |
| Legal Lot Number | 12 |
| Jurisdiction | CONTRA COSTA CA |
| Minor Civil Division | CENTRAL CONTRA COSTA |
| Census Blockgroup | 1 |
| Census Block | 1031 |
| Census Tract | 315000 |
Source: Contra Costa County records · APN 159-430-023-6
Assessment roll updated July 14, 2026 · Last verified July 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 File |
|---|---|
| Mailing Address | 1701 QUAIL ST, 100, NEWPORT BEACH, CA 92660-2796 |
| Owner Type | Owner is a Company |
| Date | Document |
|---|---|
| Sep 29, 2022 | Deed of Trust, Mortgage · Commercial Mortgage BANK OF AMERICA NA |
| Jul 27, 2022 | Correction Deed FIDELITY NATIONAL TITLE |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Dec 23, 2011 · Amount on Record |
| Deed Sale | Dec 23, 2011 · Amount on Record |
| Prior Sale | May 26, 1999 |
| Deed Doc Number | 2011280735 |
| Prior Transfer Date | Dec 19, 1995 |
| Prior Transfer Doc | 0000220290 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 4085 NELSON AVE, CONCORD, CA 94520-8546 |
| Transaction Type | Mortgage |
| Record Updated | Nov 03, 2022 |
| Title Company | FIDELITY NATIONAL TITLE |
| Name | Verified Name |
|---|---|
| Address | 345 PARK AVE, NEW YORK, NY 10154-0004 |
| Document Number | 0000147956 |
|---|---|
| Date | Sep 29, 2022 |
| Instrument | 2022-147956 |
| Name | BANK OF AMERICA NA |
|---|---|
| Type | Bank |
| Address | CHARLOTTE, NC 28255 |
| Type | Commercial Mortgage |
|---|
| Document Type | Correction Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jul 27, 2022 |
| Property Address | 4085 NELSON AVE, CONCORD, CA 94520-8546 |
| Document Number | 0000118660 |
| Map Reference | MB 82 PG 13 |
| Instrument Date | Jul 20, 2022 |
| Instrument | 2022-118660 |
| Record Updated | Nov 03, 2022 |
| Title Company | FIDELITY NATIONAL TITLE |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Concord City |
| Unified School District | Mount Diablo Unified School District (KG - 12) |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $14,275,000 (+71.73%) Land $7,135,000 Building $7,140,000 | |
| 2025 | $99,086.00 (-3.12%) | $8,312,606 (+4.04%) Land $1,539,367 Building $6,773,239 |
| 2023 | $102,279.00 (+7.38%) | $7,989,820 Land $1,479,593 Building $6,510,227 |
| 2022 | $95,250.00 |
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