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10100 E Rio de Oro Dr, Tucson, AZ 85749 Property Records

Pima County property record for 10100 E Rio de Oro Dr, Tucson, AZ 85749

Property Summary

Property TypeSingle Family Home
Details2 ba · 2,010 sqft · built 1981
Lot Size0.931 acres (40,559 sqft)
Owner2 Individual Names on File
Last Sale$545,000 (Mar 2026)
Tax Bill$3,079 (2025)
Deeds & MortgagesMar 2026 Sale & Mortgage
Aug 2020 Transfer
Flood ZoneZone X (minimal risk)
APN114-21-2190

Property Details

APN / Parcel Number

Primary APN114-21-2190

Interior

Full Baths2 Baths
Plumbing Fixtures6 Plumbing Fixtures
Total Rooms7 Rooms
Stories1 Story
Building Area2,010 sqft Living Area
1st Floor Area2,010 sqft

Exterior

Year BuiltBuilt 1981
Effective Year BuiltEffective 1981
Exterior MaterialBlock
Roof MaterialBuilt-Up Asphalt
Lot Area40,559 sqft (0.931 acres)
Parking Spaces2 Parking Spaces
PorchPatio

Utilities, Heating & Cooling

Cooling SystemEvaporative
Heating SystemForced Air with A/C

Location & Zoning

Street Address10100 E RIO DE ORO DR
CityTUCSON
StateAZ
Zip85749-8730
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeCR1
Legal DescriptionRANCHO SIERRA LOT 214
Legal Range15E
Legal Township13S
Legal Section23
Legal SubdivisionRANCHO SIERRA
Legal Lot Number214
JurisdictionPIMA AZ
Township / Civil DivisionTUCSON
Census Block Group1
Census Block1008
Census Tract4054

Owner

10100 E Rio de Oro Dr is owned by two individuals who bought it in March 2026.

Source: Pima County records, as of June 30, 2026

Owner of Record2 Individual Names on File
Mailing Address2566 W BLUFFS PEAK CT, TUCSON, AZ 85742-4479
Owner TypeIndividual
VestingCommunity Property

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

DateDocument
Mar 5, 2026Warranty Deed, Transfer · Conventional Mortgage
UNION HOME MORTGAGE CORP
Aug 26, 2020Quit Claim Deed, Transfer
ATTORNEY ONLY

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleMar 5, 2026 · Amount on File
Deed SaleMar 5, 2026 · Amount on File
Deed Document Number2026350
Prior Transfer DateAug 14, 2020
Prior Transfer Doc0002390043
Record UpdatedSep 20, 2026

March 2026: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionPIMA AZ
Recording DateMar 5, 2026
Property Address10100 E RIO DE ORO DR, TUCSON, AZ 85749-8730
Document Number0000640350
Map ReferenceMB 30 PG 34
Instrument DateFeb 18, 2026
Instrument20260640350
Transaction TypeTransfer
Record UpdatedMar 18, 2026
Title CompanySTEWART TITLE AND TRUST/TUCSON, STEWART TITLE & TR OF TUCSON

Transaction

AmountAmount on Record
DownpaymentDownpayment on Record
Loan-to-Value (LTV)LTV on Record
Tax$0.00
Amount AccuracyVerified / From Affidavit
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name
Address11407 N ONIKA LN, FLAGSTAFF, AZ 86004-5535

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCommunity Property with Right of Survivorship
Address10100 E RIO DE ORO DR, TUCSON, AZ 85749-8730

Mortgage

Document Number0000640351
DateMar 5, 2026
Instrument20260640351
Lender
NameUNION HOME MORTGAGE CORP
TypeMortgage Company
Agreement
TypeConventional Mortgage
AmountAmount on Record
Term361 Months
DueApr 1, 2056

August 2020: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionPIMA AZ
Recording DateAug 26, 2020
Property Address10100 E RIO DE ORO DR, TUCSON, AZ 85749-8730
Document Number0002390043
Instrument DateAug 17, 2020
Instrument2390043
Transaction TypeTransfer
Record UpdatedSep 16, 2020
Title CompanyATTORNEY ONLY

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address11407 N ONIKA LN FLAGSTAFF AZ 860045535, FLAGSTAFF, AZ 86004-5535

Tax Assessment & Valuation

The 2025 property tax bill for 10100 E Rio de Oro Dr was $3,079.

Source: Pima County assessment roll, as of January 21, 2026

Property Jurisdictions

TypeName
StateArizona
CountyPima County
Unified School DistrictTucson Unified District (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2026$30,303$401,904
2025$3,079.00
2024$38,113$381,133
2023$2,747.00

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

FEMA maps place 10100 E Rio de Oro Dr in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective September 9, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Community Rating SystemClass 2 (40% premium discount)
Nearby Flood Policies7 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

Wildfire risk around 10100 E Rio de Oro Dr is low, with a 0.04% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskLow
lower than 62% of the US · lower than 69% of Arizona
Wildfire Likelihood0.04% annual chance
ExposureDirect
burnable vegetation

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water SystemCITY OF TUCSON
serves 732,906 people · EPA ID AZ0410112
Water SourceGroundwater
Last State InspectionNov 2025
LeadUnder 1 ppb (2021–2023)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and Reporting32
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.

Internet Providers

Source: FCC Broadband Data Collection, based on 163 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable		1,200 / 35
Verizon
Fixed Wireless		300 / 20
Simply Bits
Fixed Wireless		100 / 30
AT&T
Fixed Wireless		100 / 20
T-Mobile
Fixed Wireless		100 / 20

May also be available: Bluespan Wireless, Sabino WiFi.

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