3388 Sentinel Dr, Boulder, CO 80301 Property Records

Boulder County property record for 3388 Sentinel Dr, Boulder, CO 80301

Property Summary

Property TypeSingle Family Home
Details3 bd · 3 ba · 1,994 sqft · built 1991
Lot Size0.082 acres (3,552 sqft)
OwnerIndividual Name on Record
Last Sale$950,000 (Nov 2024)
Tax Bill$5,557 (2025)
Deeds & MortgagesJul 2017 Transfer
Flood ZoneZone X (minimal risk)
APN1463-21-3-07-040

Property Details

APN / Parcel Number

Primary APN1463-21-3-07-040
Alternative APNs
  • R0087742
  • 0087742

Interior

Bedrooms3 Beds
Full Baths3 Baths
Half Baths3 Half Baths
Total Rooms6 Rooms
Stories2 Stories
Building Area1,994 sqft Living Area
Gross Area2,457 sqft
1st Floor Area647 sqft
Upper Floors Area779 sqft
Basement Area631 sqft
Finished Basement568 sqft
Unfinished Basement63 sqft
Interior WallsWallboard/Drywall

Exterior

Year BuiltBuilt 1991
Effective Year BuiltEffective 2003
Exterior MaterialBrick Veneer
Construction TypeFrame
Roof MaterialAsphalt
Lot Area3,552 sqft (0.082 acres)
Garage TypeAttached
Garage Area400 sqft
Parking Spaces2 Parking Spaces
Patio Area144 sqft

Utilities, Heating & Cooling

Heating SystemForced Air with A/C

Location & Zoning

Account NumberR0087742
Street Address3388 SENTINEL DR
CityBOULDER
StateCO
Zip80301-5466
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionLOT 40 BLK 1 NORTHCREEK SUB
Legal Range70
Legal Township1N
Legal Section21
Legal SubdivisionNORTHCREEK SUBDIVISION - BO
Legal Block1
Legal Lot Number40
JurisdictionBOULDER CO
Township / Civil DivisionBOULDER
Census Block Group2
Census Block2008
Census Tract12207

Owner

Source: Boulder County records, as of September 18, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of RecordIndividual Name on Record
Mailing Address3388 SENTINEL DR, BOULDER, CO 80301-5466
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleNov 14, 2024 · Amount on Record
Deed SaleNov 14, 2024 · Amount on Record
Prior SaleNov 14, 2016 · Amount on Record
Deed Document Number20244067174
Prior Transfer DateDec 27, 2013
Prior Transfer Doc0003360299
Record UpdatedOct 29, 2026

July 2017: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionBOULDER CO
Recording DateJul 19, 2017
Property Address3388 SENTINEL DR, BOULDER, CO 80301-5466
Document Number0003604276
Instrument DateJul 17, 2017
Instrument3604276
Transaction TypeTransfer
Record UpdatedJul 25, 2017
Title CompanyLAND TITLE GUARANTEE

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCompany
Address3712 RIDGEWAY ST BOULDER CO 803013250, BOULDER, CO 80301-3250

Tax Assessment & Valuation

Source: Boulder County assessment roll, as of September 18, 2026

Property Jurisdictions

TypeName
StateColorado
CountyBoulder County
MunicipalityBoulder City
Unified School DistrictBoulder Valley School District RE-2 (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2026$58,657 (+0.63%) Land $26,085 Building $32,572$932,600 (-) Land $453,600 Building $479,000
2025$5,557.00 (-7.41%)$58,288 (-19.41%) Land $28,350 Building $29,938$932,600 (-13.61%) Land $453,600 Building $479,000
2023$6,002.00 (+23.91%)$72,326 (+40.82%) Land $27,155 Building $45,171$1,079,500 (+46.08%) Land $405,300 Building $674,200
2022$4,844.00$51,360 Land $23,067 Building $28,293$739,000 Land $331,900 Building $407,100

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

Source: FEMA National Flood Hazard Layer, effective October 14, 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
Flood Insurance CostPremium on Record
median of 20 policies
Community Rating SystemClass 5 (25% premium discount)
Nearby Flood Policies20 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

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

Wildfire RiskLow
lower than 67% of the US · lower than 84% of Colorado
Wildfire Likelihood0.03% annual chance
ExposureNone
beyond ember reach

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 BOULDER
serves 166,080 people · EPA ID CO0107152
Water SourceSurface water
Last State InspectionSep 2024
Lead2 ppb (2023–2025)
action level 15 ppb

Violations Reported to EPA

Water QualityHaloacetic acids
resolved · Jul 2017
Treatment and ProcedureNone
last 10 years
Monitoring and Reporting1
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 108 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Ayva Networks
Fixed Wireless
2,500 / 2,500
Xfinity
Cable · Fiber in parts of the area
2,000 / 250
Verizon
Fixed Wireless
300 / 20
LiveWireNet
Fixed Wireless
250 / 100
CenturyLink
DSL · Fiber in parts of the area
140 / 20
T-Mobile
Fixed Wireless
100 / 20

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