3535 23rd St, Boulder, CO 80304 Property Records

Boulder County property record for 3535 23rd St, Boulder, CO 80304

Property Summary

Property TypeSingle Family Home
Details3 bd · 1.75 ba · 2,524 sqft · built 1973
Lot Size0.18 acres (7,825 sqft)
OwnerIndividual Name on File
Last Sale$265,000 (Jul 1998)
Tax Bill$6,441 (2025)
Deeds & MortgagesMar 2021 Mortgage
Flood ZoneZone X (minimal risk)
APN1463-19-1-12-011

Property Details

APN / Parcel Number

Primary APN1463-19-1-12-011
Alternative APNs
  • R0005873
  • 0005873

Interior

Bedrooms3 Beds
Full Baths1.75 Baths
Half Baths1 Half Bath
Total Rooms7 Rooms
Stories1 Story
Building Area2,524 sqft Living Area
1st Floor Area1,284 sqft
Basement Area1,240 sqft
Finished Basement1,240 sqft
Interior WallsWallboard/Drywall

Exterior

Year BuiltBuilt 1973
Effective Year BuiltEffective 1976
Architectural StyleRanch
Exterior MaterialBrick Veneer
Construction TypeFrame
Roof MaterialAsphalt
Lot Area7,825 sqft (0.18 acres)
Garage TypeCarport
Garage Area504 sqft
CarportCarport
Carport Area504 sqft
Parking Spaces2 Parking Spaces
PorchPorch
Porch Area96 sqft
Patio Area128 sqft

Utilities, Heating & Cooling

Cooling SystemEvaporative
Heating SystemForced Air with A/C

Location & Zoning

Account NumberR0005873
Street Address3535 23RD ST
CityBOULDER
StateCO
Zip80304-1907
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionLOT 30 PARKSIDE
Legal Range70
Legal Township1N
Legal Section19
Legal SubdivisionPARKSIDE - BO
Legal Block1
Legal Lot Number30
JurisdictionBOULDER CO
Township / Civil DivisionBOULDER
Census Block Group1
Census Block1006
Census Tract12103

Owner

Source: Boulder County records · APN 1463-19-1-12-011

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 RecordIndividual Name on File
Mailing Address3535 23RD ST, BOULDER, CO 80304-1907
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesVerified Name on Deed
Last SaleJul 27, 1998 · Amount on Record
Deed SaleJul 27, 1998 · Amount on Record
Prior SaleMay 21, 1987
Deed Document Number19981827812
Prior Transfer DateJun 03, 1994
Prior Transfer Doc0001434847
Record UpdatedSep 20, 2026

March 2021: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionBOULDER CO
Property Address3535 23RD ST, BOULDER, CO 80304-1907
Transaction TypeMortgage
Record UpdatedMar 31, 2022
Title CompanyFITCO

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0003867387
DateMar 16, 2021
Instrument3867387
Lender
NameCHERRY CREEK MORTGAGE CO INC
TypeMortgage Company
AddressENGLEWOOD, CO 80111
Agreement
TypeVA Mortgage
AmountAmount Recorded
Term361 Months
DueApr 01, 2051

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateColorado
CountyBoulder County
MunicipalityBoulder City
Unified School DistrictBoulder Valley School District RE-2 (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$80,301 (+8.8%) Land $37,978 Building $42,323$1,180,900 (-) Land $558,500 Building $622,400
2025$6,441.00 (+0.58%)$73,806 (-12.7%) Land $34,906 Building $38,900$1,180,900 (-6.41%) Land $558,500 Building $622,400
2023$6,404.00 (+18.55%)$84,540 (+29.8%) Land $36,508 Building $48,032$1,261,800 (+34.65%) Land $544,900 Building $716,900
2022$5,402.00$65,129 Land $29,642 Building $35,487$937,100 Land $426,500 Building $510,600

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of October 14, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Flood Insurance CostPremium on Record
median of 18 policies
Community Rating SystemClass 5 (25% premium discount)
Nearby Flood Policies18 in force
Nearby Flood Claims3 (2013)
Claims Outside the SFHA3 of 3
Most Recent ClaimSep 2013 · Severe Storms, Flooding, Landslides, And Mudslides
Claims by Event
  • Severe Storms, Flooding, Landslides, And Mudslides, Sep 2013 · 3 claims

Wildfire

Wildfire RiskLow
lower than 80% of the US · lower than 91% of Colorado
Wildfire Likelihood0.01% annual chance
ExposureNone
beyond ember reach

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 as of December 31, 2025 · Last verified October 2026

ProviderMax Down / Up (Mbps)
Ayva
Fixed Wireless
2,500 / 2,500
Xfinity
Cable
2,000 / 250
Live Wire Networks
Fixed Wireless
250 / 100
Lumen Technologies
DSL · Fiber in parts of the area
140 / 20

May also be available: AT&T, T-Mobile USA, Verizon.

Based on FCC filings for 533 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water SystemCITY OF BOULDER
serves 166,080 people
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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.

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