Orange County property record for 939 Oak St, Costa Mesa, CA 92627
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 1,237 sqft · built 1954 |
| Lot Size | 0.177 acres (7,700 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $1,495,000 (Jun 2025) |
| Tax Bill | $10,976 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 422-481-01 |
| Primary APN | 422-481-01 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,237 sqft Living Area |
| 1st Floor Area | 1,237 sqft |
| Year Built | Built 1954 |
|---|---|
| Effective Year Built | Effective 1954 |
| Lot Area | 7,700 sqft (0.177 acres) |
| Street Address | 939 OAK ST |
|---|---|
| City | COSTA MESA |
| State | CA |
| Zip | 92627-4045 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | N TR 1712 BLK LOT 178 |
| Legal Subdivision | TR 1712 |
| Legal Tract | 1712 |
| Legal Lot Number | 178 |
| Jurisdiction | ORANGE CA |
| Township / Civil Division | CENTRAL COAST |
| Census Block Group | 1 |
| Census Block | 1000 |
| Census Tract | 63601 |
939 Oak St is held in a trust since June 2025.
Source: Orange County records, as of August 26, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 994 OAK ST, COSTA MESA, CA 92627-4010 |
| Owner Type | Company |
| Vesting | Trust |
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 | 2 Names on Deed |
|---|---|
| Last Sale | Jun 3, 2025 · Amount on File |
| Deed Sale | Jun 3, 2025 · Amount on File |
| Prior Sale | Feb 18, 2025 · Amount on File |
| Deed Document Number | 2025156643 |
| Prior Transfer Date | Aug 1, 1997 |
| Prior Transfer Doc | 0000404088 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 939 Oak St was $10,976.
Source: Orange County assessment roll, as of August 4, 2026
| Type | Name |
|---|---|
| State | California |
| County | Orange County |
| Municipality | Costa Mesa City |
| Unified School District | Newport-Mesa Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $1,524,900 (+61.59%) Land $1,463,828 Building $61,072 | |
| 2025 | $10,976.00 | $943,674 Land $882,023 Building $61,651 |
| 2023 | $9,919.00 (+2.84%) | $858,516 Land $806,496 Building $52,020 |
| 2022 | $9,645.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 939 Oak St in Zone X, an area of minimal flood risk, though there have been 3 flood claims nearby since 1997.
Source: FEMA National Flood Hazard Layer, effective September 27, 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 |
| Nearby Flood Policies | 3 in force |
| Nearby Flood Claims | 3 (1997) |
| Claims Outside the SFHA | 3 of 3 |
| Most Recent Claim | Dec 1997 · 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.
The area around 939 Oak St has no burnable land within ember reach, so its wildfire risk is not rated.
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 | MESA WATER DISTRICT serves 110,000 people · EPA ID CA3010004 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Aug 2023 |
| Lead | Under 1 ppb (2024–2026) 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 846 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL | 5,000 / 5,000 |
| Spectrum Cable | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| Cosmo Network Solutions Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
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