Contra Costa County property record for 843 Topper Ln, Lafayette, CA 94549
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 4.5 ba · 4,213 sqft · built 2014 |
| Lot Size | 0.38 acres (16,552 sqft) |
| Owner | Company Name on Record |
| Last Sale | $2,900,000 (May 2015) |
| Tax Bill | $38,571 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 234-062-003-4 |
| Primary APN | 234-062-003-4 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 4.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 11 Rooms |
| Stories | 1 Story |
| Building Area | 4,213 sqft Living Area |
| 1st Floor Area | 4,213 sqft |
| Year Built | Built 2014 |
|---|---|
| Effective Year Built | Effective 2015 |
| Lot Area | 16,552 sqft (0.38 acres) |
| Garage Type | Attached |
| Garage Area | 583 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 843 TOPPER LN |
|---|---|
| City | LAFAYETTE |
| State | CA |
| Zip | 94549-5119 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | POR RO COLORADOS |
| Legal Subdivision | LAGUNA DE LOS PALOS COLORADOS |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2006 |
| Census Tract | 349000 |
Source: Contra Costa County records, as of July 14, 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 | 843 TOPPER LN, LAFAYETTE, CA 94549-5119 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | May 18, 2015 · Amount on Record |
| Deed Sale | May 18, 2015 · Amount on Record |
| Prior Sale | Nov 7, 2013 · Amount on Record |
| Deed Document Number | 201598570 |
| Prior Transfer Date | May 26, 2011 |
| Prior Transfer Doc | 0000115609 |
| Record Updated | Sep 20, 2026 |
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Lafayette City |
| Secondary School District | Acalanes Union High School District (09 - 12) |
| Elementary School District | Lafayette Elementary School District (KG - 08) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $3,555,064 (+2%) Land $1,961,415 Building $1,593,649 | |
| 2025 | $38,571.00 (+3.45%) Homeowner's exemption | $3,485,357 (+4.04%) Land $1,922,956 Building $1,562,401 |
| 2023 | $37,286.00 (+1.52%) Homeowner's exemption | $3,350,018 Land $1,848,286 Building $1,501,732 |
| 2022 | $36,729.00 |
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 · 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 | 5 (1982–2023) |
| Claims Outside the SFHA | 1 of 5 |
| Most Recent Claim | Jan 2023 · Severe Winter Storms, Flooding, Landslides, And Mudslides |
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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 67% of the US · lower than 81% of California |
|---|---|
| Wildfire Likelihood | 0.03% annual chance |
| Exposure | Direct burnable vegetation |
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 | EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Dec 2021 |
| Lead | Under 1 ppb (2022–2024) 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. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 423 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
May also be available: Etheric Networks, Verizon.
5G (outdoors only) and 4G LTE
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