Orange County property record for 623 Hamilton St, Costa Mesa, CA 92627
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 825 sqft · built 1959 |
| Lot Size | 0.261 acres (11,370 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $1,095,000 (Apr 2015) |
| Tax Bill | $16,982 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 422-131-15 |
| Primary APN | 422-131-15 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 4 Rooms |
| Stories | 1 Story |
| Building Area | 825 sqft Living Area |
| 1st Floor Area | 825 sqft |
| Year Built | Built 1959 |
|---|---|
| Effective Year Built | Effective 1959 |
| Lot Area | 11,370 sqft (0.261 acres) |
| Street Address | 623 HAMILTON ST |
|---|---|
| City | COSTA MESA |
| State | CA |
| Zip | 92627-8535 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | A TR FAIRVIEW FARMS BLK LOT 21 FAIRVIEW FARMS LOT 21 W 52 FT E 780 FT N 248.4 FT |
| Legal Subdivision | FAIRVIEW FARMS |
| Legal Tract | 247 |
| Legal Lot Number | 21 |
| Jurisdiction | ORANGE CA |
| Township / Civil Division | CENTRAL COAST |
| Census Block Group | 4 |
| Census Block | 4000 |
| Census Tract | 63702 |
623 Hamilton St is held in a trust since April 2015.
Source: Orange County records, as of August 4, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 1055 EL CAMINO DR, F111, COSTA MESA, CA 92626-5579 |
| 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 | Apr 14, 2015 · Amount on File |
| Deed Sale | Apr 14, 2015 · Amount on File |
| Prior Sale | Jul 20, 1999 · Amount on File |
| Deed Document Number | 2015190981 |
| Prior Transfer Date | Jul 25, 2008 |
| Prior Transfer Doc | 0000358543 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 623 Hamilton St was $16,982.
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 | $1,341,825 (+2%) Land $1,189,537 Building $152,288 | |
| 2025 | $16,982.00 | $1,315,515 Land $1,166,213 Building $149,302 |
| 2023 | $15,993.00 (+3.15%) | $1,264,433 Land $1,120,928 Building $143,505 |
| 2022 | $15,505.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 623 Hamilton St in Zone X, an area of minimal flood risk, though there have been 1 flood claim 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 | 2 in force |
| Nearby Flood Claims | 1 (1997) |
| Claims Outside the SFHA | 1 of 1 |
| 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 623 Hamilton 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 769 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 · Fiber in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: Cosmo Network Solutions, GeoLinks, T-Mobile.
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