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4140 15th St, Boulder, CO 80304 Property Records

Boulder County property record for 4140 15th St, Boulder, CO 80304

Property Summary

Property TypeSingle Family Home
Details4 bd · 3 ba · 3,231 sqft · built 1992
Lot Size0.889 acres (38,711 sqft)
Owner2 Company Names on Record
Last Sale$390,000 (Dec 1997)
Tax Bill$11,910 (2025)
Deeds & MortgagesDec 2024 Transfer
Dec 2024 Sale
Flood ZoneZone AE (high risk)
APN1463-18-3-46-002

Property Details

APN / Parcel Number

Primary APN1463-18-3-46-002
Alternative APNs
  • 1463-18-3-46-005
  • R0618119
  • R0109856
  • 0109856

Interior

Bedrooms4 Beds
Full Baths3 Baths
Half Baths2 Half Baths
Total Rooms9 Rooms
Stories2 Stories
Building Area3,231 sqft Living Area
Gross Area3,965 sqft
1st Floor Area1,131 sqft
Upper Floors Area1,278 sqft
Basement Area1,131 sqft
Finished Basement822 sqft
Unfinished Basement309 sqft
Interior WallsWallboard/Drywall

Exterior

Year BuiltBuilt 1992
Effective Year BuiltEffective 1992
Architectural StyleA-Frame
Exterior MaterialCombination
Construction TypeFrame
Lot Area38,711 sqft (0.889 acres)
Garage TypeAttached
Garage Area425 sqft
Patio Area99 sqft

Utilities, Heating & Cooling

Heating SystemForced Air with A/C

Location & Zoning

Account NumberR0618119
Street Address4140 15TH ST
CityBOULDER
StateCO
Zip80304-1123
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionLOT 2 NIMBUS & LOT 3 MOORES & 30 FT VACATED RIVERSIDE AVE ADJ ON NORTH
Legal Range70
Legal Township1N
Legal Section18
Legal SubdivisionNIMBUS SUBDIVISION - BO
Legal Block3
Legal Lot Number2
JurisdictionBOULDER CO
Township / Civil DivisionBOULDER
Census Block Group3
Census Block3000
Census Tract12105

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 Company Names on Record
Mailing Address4140 15TH ST, BOULDER, CO 80304-1123
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust, Revocable Trust

Deeds, Mortgages & Sale History

DateDocument
Dec 4, 2024Intrafamily Transfer, Transfer
Dec 4, 2024Special Warranty Deed, Transfer

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleDec 16, 1997 · Amount on Record
Deed SaleDec 16, 1997 · Amount on Record
Deed Document Number19971756021
Last Transfer DateJul 26, 2019
Transfer Doc0003727647
Record UpdatedOct 29, 2026

December 2024: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionBOULDER CO
Recording DateDec 4, 2024
Property Address1521 REDWOOD AVE, BOULDER, CO 80304-1115
Document Number0004069145
Instrument DateNov 27, 2024
Instrument4069145
Transaction TypeTransfer
Record UpdatedFeb 9, 2026

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipRevocable Trust
Address4140 15TH ST, BOULDER, CO 80304-1123

December 2024: Special Warranty Deed, Transfer

Document TypeSpecial Warranty Deed
JurisdictionBOULDER CO
Recording DateDec 4, 2024
Property Address1521 REDWOOD AVE, BOULDER, CO 80304-1115
Document Number0004069147
Instrument DateNov 27, 2024
Instrument4069147
Transaction TypeTransfer
Record UpdatedFeb 13, 2026

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipRevocable Trust
Address4140 15TH ST, BOULDER, CO 80304-1123

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$137,952 (+5.17%) Land $73,753 Building $64,199$2,098,700 (-) Land $1,154,600 Building $944,100
2025$11,910.00 (+5.23%)$131,169 (-7.27%) Land $72,163 Building $59,006$2,098,700 (-0.59%) Land $1,154,600 Building $944,100
2023$11,318.00 (+17.37%)$141,450 (+27.67%) Land $67,134 Building $74,316$2,111,200 (+32.44%) Land $1,002,000 Building $1,109,200
2022$9,643.00$110,790 Land $53,883 Building $56,907$1,594,100 Land $775,300 Building $818,800

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 AE
high risk
100-Year FloodplainYes
1% annual chance
FloodwayYes
Base Flood ElevationVaries along the reach; see FIRM
Flood Insurance RequirementRequired
federally backed loans
Flood Insurance CostPremium on Record
median of 32 policies
Community Rating SystemClass 5 (25% premium discount)
Nearby Flood Policies32 in force
Nearby Flood Claims26 (2005–2015)
Claims Outside the SFHA10 of 26
Most Recent ClaimMay 2015 · Severe Storms, Tornadoes, Flooding, Landslides, And Mudslides
Claims by Event
  • Severe Storms, Flooding, Landslides, And Mudslides, Sep 2013 · 23 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 63% of the US · lower than 80% of Colorado
Wildfire Likelihood0.08% 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 460 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
LiveWireNet
Fixed Wireless		250 / 100
T-Mobile
Fixed Wireless		100 / 20

May also be available: AT&T, CenturyLink.

Cell Coverage

5G (outdoors only) and 4G LTE

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