San Diego County property record for 6171 Ave del Duque, Rancho Santa Fe, CA 92091
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 4.5 ba · 5,690 sqft · built 2002 |
| Lot Size | 1.11 acres (48,352 sqft) |
| Owner | Company Name on File |
| Last Sale | $2,650,000 (Aug 2017) |
| Tax Bill | $33,946 (2025) |
| Deeds & Mortgages | Aug 2017 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 264-510-10-00 |
| Primary APN | 264-510-10-00 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 4.5 Baths |
| Half Baths | 1 Half Bath |
| Building Area | 5,690 sqft Living Area |
| Year Built | Built 2002 |
|---|---|
| Effective Year Built | Effective 2002 |
| Lot Area | 48,352 sqft |
| Parking Spaces | 3 Parking Spaces |
| Street Address | 6171 AVENIDA DEL DUQUE |
|---|---|
| City | RANCHO SANTA FE |
| State | CA |
| Zip | 92091 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RR |
| Legal Description | LOT 10 TR 013529 |
| Legal Subdivision | COUNTY OF SAN DIEGO TRACT #4821-1 |
| Legal Tract | 013529 |
| Legal Block | 1 |
| Legal Lot Number | 10 |
| Jurisdiction | SAN DIEGO CA |
| Township / Civil Division | SAN DIEGO |
| Census Block Group | 1 |
| Census Block | 1029 |
| Census Tract | 17111 |
6171 Ave del Duque is owned by a company that bought it in August 2017 and is owner-occupied.
Source: San Diego County records, as of October 12, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | PO BOX 463, RANCHO SANTA FE, CA 92067-0463 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Borrower in Default |
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 | Name on Deed |
|---|---|
| Last Sale | Aug 7, 2017 · Amount on File |
| Deed Sale | Aug 7, 2017 · Amount on File |
| Prior Sale | Oct 20, 2014 · Amount on File |
| Deed Document Number | 2017355095 |
| Prior Transfer Date | Mar 27, 2015 |
| Prior Transfer Doc | 0000152409 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN DIEGO CA |
| Recording Date | Aug 7, 2017 |
| Property Address | 6171 AVENIDA DEL DUQUE, RANCHO SANTA FE, CA 92091 |
| Document Number | 0000355095 |
| Instrument Date | Jul 3, 2017 |
| Instrument | 355095 |
| Transaction Type | Transfer |
| Record Updated | Aug 14, 2017 |
| Title Company | CHICAGO TITLE COMPANY, CHICAGO TITLE CO |
| Amount | Amount on Record |
|---|---|
| Tax | $2,915.00 |
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | PO BOX 463 RANCHO SANTA FE CA 920670463, RANCHO SANTA FE, CA 92067-0463 |
| Investor | Possibly a Property Investor |
The 2025 property tax bill for 6171 Ave del Duque was $33,946 with a homeowner's exemption.
Source: San Diego County assessment roll, as of July 28, 2026
| Type | Name |
|---|---|
| State | California |
| County | San Diego County |
| Elementary School District | Encinitas Union Elementary School District (KG - 06) |
| Secondary School District | San Dieguito Union High School District (07 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $3,075,547 (+2%) Land $1,566,788 Building $1,508,759 | |
| 2025 | $33,946.00 Homeowner's exemption | $3,015,243 Land $1,536,067 Building $1,479,176 |
| 2023 | $31,630.00 (+1.95%) Homeowner's exemption | $2,898,160 Land $1,476,421 Building $1,421,739 |
| 2022 | $31,024.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 6171 Ave del Duque in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 3, 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 |
| Community Rating System | Class 6 (20% 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.
Wildfire risk around 6171 Ave del Duque is low, with a 0.06% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 62% of the US · lower than 77% of California |
|---|---|
| Wildfire Likelihood | 0.06% annual chance |
| Exposure | None beyond 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 | OLIVENHAIN MWD serves 86,458 people · EPA ID CA3710029 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | May 2024 |
| Lead | Under 1 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 62 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Cox Communications Cable | 2,000 / 100 |
| San Diego Broadband Fixed Wireless | 500 / 100 |
May also be available: Race Communications, Spectrum, Verizon.
5G (outdoors only) and 4G LTE
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