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8423 Thunderhead Dr, Boulder, CO 80302 Property Records

Boulder County property record for 8423 Thunderhead Dr, Boulder, CO 80302 · Last verified June 2026

Property Summary

Property TypeSingle Family Home
Details3 bd · 2.25 ba · 2,538 sqft · built 1976
Lot Size0.739 acres (32,193 sqft)
Owner2 Individual Names on File
Last Sale$575,000 (Jun 2014)
Tax Bill$7,761 (2025)
Deeds & MortgagesJul 2020 Line of Credit
May 2020 Mortgage
Flood ZoneZone X (minimal risk)
APN1319-24-0-09-004

Property Details

APN / Parcel Number

Primary APN1319-24-0-09-004
Alternative APNs
  • R0054766
  • 0054766

Interior

Bedrooms3 Beds
Full Baths2.25 Baths
Half Baths2 Half Baths
Total Rooms8 Rooms
Stories2 Stories
Building Area2,538 sqft Living Area
1st Floor Area1,080 sqft
Upper Floors Area378 sqft
Basement Area1,080 sqft
Finished Basement1,080 sqft
Interior WallsWallboard/Drywall

Exterior

Year BuiltBuilt 1976
Effective Year BuiltEffective 2006
Architectural StyleA-Frame
Exterior MaterialWood Shingle
Construction TypeFrame
Lot Area32,193 sqft (0.739 acres)
Deck Area442 sqft

Utilities, Heating & Cooling

Heating SystemForced Air with A/C

Location & Zoning

Account NumberR0054766
Street Address8423 THUNDERHEAD DR
CityBOULDER
StateCO
Zip80302-9320
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionLOT 4 BLK E CRESTVIEW ESTATES 2
Legal Range71
Legal Township2N
Legal Section24
Legal SubdivisionCRESTVIEW ESTATES 2
Legal BlockE
Legal Lot Number4
JurisdictionBOULDER CO
Township / Civil DivisionBALD MOUNTAIN
Census Block Group4
Census Block4003
Census Tract13704

Owner

Source: Boulder County records · APN 1319-24-0-09-004

Assessment roll updated June 15, 2026 · Last verified June 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 File
Mailing Address8423 THUNDERHEAD DR, BOULDER, CO 80302-9320
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

DateDocument
Jul 21, 2020Deed of Trust, Mortgage · Line of Credit
UMB BANK NA
May 15, 2020Deed of Trust, Mortgage · Conventional Mortgage
BAY EQUITY

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleJun 20, 2014 · Amount on Record
Deed SaleJun 20, 2014 · Amount on Record
Prior SaleApr 02, 2001 · Amount on Record
Deed Document Number20143386597
Prior Transfer DateJun 19, 2014
Prior Transfer Doc0003386599
Record UpdatedSep 20, 2026

July 2020: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionBOULDER CO
Property Address8423 THUNDERHEAD DR, BOULDER, CO 80302-9320
Transaction TypeMortgage
Record UpdatedFeb 05, 2021

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0003799362
DateJul 21, 2020
Instrument3799362
Lender
NameUMB BANK NA
TypeBank
AddressDENVER, CO 80202
Agreement
TypeLine of Credit
AmountAmount Recorded
Interest
Rate TypeAdjustable Rate
Change FrequencyMonthly

May 2020: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionBOULDER CO
Property Address8423 THUNDERHEAD DR, BOULDER, CO 80302-9320
Document Number0003785594
Instrument DateMay 15, 2020
Transaction TypeMortgage
Record UpdatedJul 10, 2020
Title CompanyFIRST INTEGRITY TITLE, FITCO-FIRST INTEGRITY TITLE

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenants with Right of Survivorship
Address8423 THUNDERHEAD DR BOULDER CO 803029320, BOULDER, CO 80302-9320

Mortgage

Document Number0003785594
DateMay 21, 2020
Instrument3785594
Lender
NameBAY EQUITY
TypeFunding / Finance Company
AddressCORTE MADERA, CA 94925
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term360 Months
DueMay 20, 2050

Tax Assessment & Valuation

Source: Boulder County records · Assessment roll updated June 15, 2026 · Last verified June 2026

Property Jurisdictions

TypeName
StateColorado
CountyBoulder County
Unified School DistrictSt. Vrain Valley School District RE 1J (PK - 12)

Tax Bill & Assessment History

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.

YearTax BillAssessed ValueAssessed Market Value
2026$75,453 (+8.8%) Land $10,091 Building $65,362$1,109,600 (-) Land $148,400 Building $961,200
2025$7,761.00 (+5.91%)$69,350 (-9.04%) Land $9,275 Building $60,075$1,109,600 (-2.5%) Land $148,400 Building $961,200
2023$7,328.00 (+26.15%)$76,246 (+38.8%) Land $10,861 Building $65,385$1,138,000 (+43.98%) Land $162,100 Building $975,900
2022$5,809.00$54,933 Land $7,624 Building $47,309$790,400 Land $109,700 Building $680,700

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Boulder County (08013C), updated October 14, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 080130137044, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood ZoneZone X
Special Flood Hazard AreaNo
Flood HazardMinimal
500-Year FloodplainNo
Flood Insurance CostPremium on Record
median of 16 individual NFIP policies nearby
Community Rating SystemClass 5 (25% premium discount)
Nearby Flood Policies16 in force
Nearby Flood Claims2 (2013)
Claims Outside the SFHA1 of 2
Most Recent ClaimSep 2013, river or lake flooding, Severe Storms, Flooding, Landslides, And Mudslides
Claims By Storm
  • Severe Storms, Flooding, Landslides, And Mudslides, Sep 2013 · 2 claims

Wildfire

Wildfire RiskHigh
above 86% of the US · above 90% of Colorado
Wildfire LikelihoodAbout 1 in 126 per year
ExposureDirect
burnable vegetation at the parcel

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.

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 74 locations within about half a mile of this property

ProviderTechnologyDownload / Upload (Mbps)
XfinityCable1,200 / 35
Live Wire NetworksFixed Wireless (licensed-by-rule)250 / 100

May also be available at this address: Ayva, Verizon. Availability varies by address; speeds are provider-advertised maximums, not measured.

Mobile Coverage

5G (outdoors only) and 4G LTE

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