Santa Clara County property record for 640 Chesley Ave, Mountain View, CA 94040
| Property Type | Single Family Home |
|---|---|
| Details | 6 bd · 3.5 ba · 2,942 sqft · built 1966 |
| Lot Size | 0.186 acres (8,080 sqft) |
| Owner | Trust Name on File |
| Last Sale | $499,000 (Feb 1994) |
| Tax Bill | $10,331 (2025) |
| Deeds & Mortgages | Apr 2019 Transfer Apr 2019 Transfer |
| Flood Zone | Zone X (reduced by levee) |
| APN | 197-27-021 |
| Primary APN | 197-27-021 |
|---|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 12 Rooms |
| Stories | 2 Stories |
| Building Area | 2,942 sqft Living Area |
| Gross Area | 2,995 sqft |
| 1st Floor Area | 1,272 sqft |
| 2nd Floor Area | 1,294 sqft |
| Basement Area | 429 sqft |
| Finished Basement | 429 sqft |
| Family Room | Family Room |
| Utility Room | Utility Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1966 |
|---|---|
| Effective Year Built | Effective 1966 |
| Architectural Style | Custom Design |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Material | Wood Shingle |
| Lot Area | 8,080 sqft (0.186 acres) |
| Lot Dimensions | 101 ft deep x 80 ft wide |
| Garage Area | 453 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Porch |
| Heating System | HVAC |
|---|---|
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 640 CHESLEY AVE |
|---|---|
| City | MOUNTAIN VIEW |
| State | CA |
| Zip | 94040-4411 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1-8L |
| Legal Description | TRACT 4199 WAVERLY PARK BOOK 212 PAGE 52 PAGE 53 LOT 149 |
| Legal Subdivision | WAVERLY PARK |
| Legal Tract | 4199 |
| Legal Lot Number | 149 |
| Jurisdiction | SANTA CLARA CA |
| Township / Civil Division | SAN JOSE |
| Census Block Group | 2 |
| Census Block | 2009 |
| Census Tract | 509902 |
640 Chesley Ave is owner-occupied and held in a trust since January 1996.
Source: Santa Clara County records, as of July 27, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 640 CHESLEY AVE, MOUNTAIN VIEW, CA 94040-4411 |
| Occupancy | Owner Occupied |
| 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.
| Date | Document |
|---|---|
| Apr 19, 2019 | Quit Claim Deed, Transfer NOT AVAILABLE |
| Apr 19, 2019 | Quit Claim Deed, Transfer NOT AVAILABLE |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Feb 11, 1994 · Amount on File |
| Deed Sale | Feb 11, 1994 · Amount on File |
| Deed Document Number | 199412354944 |
| Deed Book / Page | 298 / 1450 |
| Last Transfer Date | Jan 29, 1996 |
| Transfer Doc | 0013186174 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SANTA CLARA CA |
| Recording Date | Apr 19, 2019 |
| Property Address | 640 CHESLEY AVE, MOUNTAIN VIEW, CA 94040-4411 |
| Document Number | 0024160660 |
| Instrument Date | Apr 5, 2019 |
| Instrument | 24160660 |
| Transaction Type | Transfer |
| Record Updated | Jan 10, 2020 |
| Title Company | NOT AVAILABLE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 640 CHESLEY AVE MOUNTAIN VIEW CA 940404411, MOUNTAIN VIEW, CA 94040-4411 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SANTA CLARA CA |
| Recording Date | Apr 19, 2019 |
| Property Address | 640 CHESLEY AVE, MOUNTAIN VIEW, CA 94040-4411 |
| Document Number | 0024160661 |
| Instrument Date | Apr 5, 2019 |
| Instrument | 24160661 |
| Transaction Type | Transfer |
| Record Updated | Jan 10, 2020 |
| Title Company | NOT AVAILABLE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 640 CHESLEY AVE MOUNTAIN VIEW CA 940404411, MOUNTAIN VIEW, CA 94040-4411 |
The 2025 property tax bill for 640 Chesley Ave was $10,331 with a homeowner's exemption.
Source: Santa Clara County assessment roll, as of July 27, 2026
| Type | Name |
|---|---|
| State | California |
| County | Santa Clara County |
| Municipality | Mountain View City |
| Elementary School District | Mountain View Whisman Elementary School District (KG - 08) |
| Secondary School District | Mountain View-Los Altos Union School District (09 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $865,088 (+2%) Land $520,092 Building $344,996 | |
| 2025 | $10,331.00 Homeowner's exemption | $848,127 Land $509,895 Building $338,232 |
| 2023 | $9,765.00 (+0.31%) Homeowner's exemption | $815,196 Land $490,097 Building $325,099 |
| 2022 | $9,735.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 640 Chesley Ave in Zone X, where a levee reduces flood risk.
Source: FEMA National Flood Hazard Layer, effective January 18, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X reduced by levee · depends on levee performance |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 2 in force |
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 640 Chesley Ave 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 | CWSC LOS ALTOS SUBURBAN private · serves 63,559 people · EPA ID CA4310001 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Aug 2024 |
| Lead | 2 ppb (2023–2025) 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 589 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
May also be available: Cruzio, T-Mobile.
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