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4444 Mast Rd, Boulder, CO 80301 Property Records

Boulder County property record for 4444 Mast Rd, Boulder, CO 80301

Property Summary

Property TypeSingle Family Home
Details3 bd · 1.75 ba · 1,688 sqft · built 1976
Lot Size0.195 acres (8,498 sqft)
Owner2 Individual Names on Record
Last Sale$710,000 (Aug 2026)
Tax Bill$3,822 (2025)
Deeds & MortgagesAug 2026 Sale & Mortgage
Flood ZoneZone X (minimal risk)
APN1463-14-2-15-029

Property Details

APN / Parcel Number

Primary APN1463-14-2-15-029
Alternative APNs
  • R0039097
  • 0039097

Interior

Bedrooms3 Beds
Full Baths1.75 Baths
Half Baths1 Half Bath
Total Rooms5 Rooms
Building Area1,688 sqft Living Area
Gross Area2,088 sqft
1st Floor Area872 sqft
Basement Area816 sqft
Finished Basement816 sqft
Interior WallsWallboard/Drywall

Exterior

Year BuiltBuilt 1976
Effective Year BuiltEffective 1976
Architectural StyleBi-Level
Exterior MaterialWood Shingle
Construction TypeFrame
Lot Area8,498 sqft (0.195 acres)
Garage TypeAttached
Garage Area400 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

Cooling SystemCentral
Heating SystemForced Air with A/C

Location & Zoning

Account NumberR0039097
Street Address4444 MAST RD
CityBOULDER
StateCO
Zip80301-3114
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeSR
Legal DescriptionLOT 29 BLK 11 TWIN LAKES 2 REPLAT OF BLKS 10 11 & 12
Legal Range70
Legal Township1N
Legal Section14
Legal SubdivisionTWIN LAKES 1,2 & REPLATS - BOV
Legal Block11,10
Legal Lot Number29
JurisdictionBOULDER CO
Township / Civil DivisionBOULDER
Census Block Group1
Census Block1000
Census Tract12708

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 Address4444 MAST RD, BOULDER, CO 80301-3114
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleAug 10, 2026 · Amount on Record
Deed SaleAug 10, 2026 · Amount on Record
Prior SaleJan 29, 1988 · Amount on Record
Deed Document Number20264143174
Prior Transfer DateSep 16, 2025
Prior Transfer Doc0004102533
Record UpdatedOct 29, 2026

August 2026: Personal Representative Deed, Transfer

Document TypePersonal Representative Deed
JurisdictionBOULDER CO
Recording DateAug 10, 2026
Property Address4444 MAST RD, BOULDER, CO 80301-3114
Document Number0004143174
Instrument DateAug 6, 2026
Instrument20264143174
Transaction TypeTransfer
Record UpdatedAug 20, 2026
Title CompanyHERITAGE TITLE COMPANY

Transaction

AmountAmount Recorded
DownpaymentDownpayment on Record
Loan-to-Value (LTV)LTV on Record
Tax$7,171.00
Amount AccuracyCalculated from Transfer Tax
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address4444 MAST RD, BOULDER, CO 80301-3114

Mortgage

Document Number0004143175,
DateAug 10, 2026
Instrument20264143175
Lender
NameELEVATIONS CREDIT UNION
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term360 Months
DueSep 1, 2056
Interest
Rate TypeFixed Rate
Rate6.49%
Initial TypeFixed Rate
Max Rate-1%

Tax Assessment & Valuation

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

Property Jurisdictions

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

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2026$43,336 (-1.97%) Land $17,938 Building $25,398$707,300 (-) Land $333,800 Building $373,500
2025$3,822.00 (+14.19%)$44,207 (-5.98%) Land $20,863 Building $23,344$707,300 (+0.78%) Land $333,800 Building $373,500
2023$3,347.00 (+21.8%)$47,021 (+34.5%) Land $19,973 Building $27,048$701,800 (+39.52%) Land $298,100 Building $403,700
2022$2,748.00$34,959 Land $15,221 Building $19,738$503,000 Land $219,000 Building $284,000

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

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it

Values are read at the parcel center point; 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 Likelihood0.05% 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 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 334 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Ayva Networks
Fixed Wireless		2,500 / 2,500
Xfinity
Cable		2,000 / 250
Verizon
Fixed Wireless		300 / 20
LiveWireNet
Fixed Wireless		250 / 100
CenturyLink
DSL		140 / 20

Cell Coverage

5G (outdoors only) and 4G LTE

Nearby Properties on Mast Rd

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