3420 Ash Ave, Boulder, CO 80305 Property Records

Boulder County property record for 3420 Ash Ave, Boulder, CO 80305

Property Summary

Property TypeSingle Family Home
Details3 bd · 1.5 ba · 1,280 sqft · built 1962
Lot Size0.179 acres (7,776 sqft)
Owner2 Individual Names on Record
Last Sale$445,000 (Sep 2014)
Tax Bill$4,491 (2025)
Deeds & MortgagesOct 2026 Transfer
Feb 2021 Mortgage
Flood ZoneZone X (moderate risk)
APN1577-05-2-29-007

Property Details

APN / Parcel Number

Primary APN1577-05-2-29-007
Alternative APNs
  • R0009622
  • 0009622

Interior

Bedrooms3 Beds
Full Baths1.5 Baths
Half Baths1 Half Bath
Total Rooms6 Rooms
Building Area1,280 sqft Living Area
Gross Area1,568 sqft
1st Floor Area896 sqft
Basement Area384 sqft
Finished Basement384 sqft
Interior WallsWallboard/Drywall

Exterior

Year BuiltBuilt 1962
Effective Year BuiltEffective 1962
Architectural StyleSplit Level
Exterior MaterialBrick Veneer
Construction TypeMasonry / Concrete Block
Roof MaterialAsphalt
Lot Area7,776 sqft (0.179 acres)
Garage TypeAttached
Garage Area288 sqft
Parking Spaces1 Parking Space
Patio Area216 sqft

Utilities, Heating & Cooling

Heating SystemForced Air with A/C

Location & Zoning

Account NumberR0009622
Street Address3420 ASH AVE
CityBOULDER
StateCO
Zip80305-3432
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionLOT 7 BLK 2 WILLIAM MARTIN HOMESTEAD
Legal Range70
Legal Township1S
Legal Section05
Legal SubdivisionWILLIAM MARTIN HOMESTEAD - BO
Legal Block2
Legal Lot Number7
JurisdictionBOULDER CO
Township / Civil DivisionBOULDER
Census Block Group1
Census Block1011
Census Tract12507

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 Record2 Individual Names on Record
Mailing Address3420 ASH AVE, BOULDER, CO 80305-3432
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

DateDocument
Oct 13, 2026Quit Claim Deed, Transfer
COVIUS SETTLEMENT SERVICES LLC, COVIUS SETTLEMENT SERVICES
Feb 8, 2021Deed of Trust, Mortgage · Conventional Mortgage
LOANDEPOT.COM LLC

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleSep 9, 2014 · Amount on Record
Deed SaleSep 9, 2014 · Amount on Record
Prior SaleAug 7, 1973 · Amount on Record
Deed Document Number20143401618
Record UpdatedOct 29, 2026

October 2026: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionBOULDER CO
Recording DateOct 13, 2026
Property Address3420 ASH AVE, BOULDER, CO 80305-3432
Document Number0004150158
Instrument DateOct 2, 2026
Instrument20264150158
Transaction TypeTransfer
Record UpdatedOct 23, 2026
Title CompanyCOVIUS SETTLEMENT SERVICES LLC, COVIUS SETTLEMENT SERVICES

Transaction

Tax$0.00
Amount AccuracyFull Amount Stated
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address3420 ASH AVE, BOULDER, CO 80305-3432

February 2021: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionBOULDER CO
Property Address3420 ASH AVE, BOULDER, CO 80305-3432
Transaction TypeMortgage
Record UpdatedFeb 22, 2021
Title CompanyASCENDANT TITLE CO

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0003857310
DateFeb 8, 2021
Instrument3857310
Lender
NameLOANDEPOT.COM LLC
TypeMortgage Company
AddressFOOTHILL RANCH, CA 92610
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueMar 1, 2051

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$45,574 (-1.49%) Land $34,803 Building $10,771$740,200 (-) Land $581,800 Building $158,400
2025$4,491.00 (+3.65%)$46,263 (-12.71%) Land $36,363 Building $9,900$740,200 (-6.42%) Land $581,800 Building $158,400
2023$4,333.00 (+8.76%)$52,997 (+25.89%) Land $42,612 Building $10,385$791,000 (+30.59%) Land $636,000 Building $155,000
2022$3,984.00$42,097 Land $31,602 Building $10,495$605,700 Land $454,700 Building $151,000

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
moderate risk
500-Year FloodplainYes
0.2% annual chance
Nearest Special Flood Hazard AreaZone AE, within 500 ft
Flood Insurance RequirementNot required
lenders may require it
Flood Insurance CostPremium on Record
median of 25 policies
Community Rating SystemClass 5 (25% premium discount)
Nearby Flood Policies25 in force
Nearby Flood Claims16 (1995–2013)
Claims Outside the SFHA2 of 16
Most Recent ClaimSep 2013 · Severe Storms, Flooding, Landslides, And Mudslides
Claims by Event
  • Severe Storms, Flooding, Landslides, And Mudslides, Sep 2013 · 14 claims

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 65% of the US · lower than 82% 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 451 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Ayva Networks
Fixed Wireless
2,500 / 2,500
CenturyLink
Fiber
2,000 / 1,000
Xfinity
Cable
2,000 / 250
Verizon
Fixed Wireless
300 / 20
LiveWireNet
Fixed Wireless
250 / 100
T-Mobile
Fixed Wireless
100 / 20

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