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1843 Walnut St, Apt B, Boulder, CO 80302 Property Records

Boulder County property record for 1843 Walnut St, Apt B, Boulder, CO 80302

Property Summary

Property TypeCondominium
Details2 bd · 1.5 ba · 1,290 sqft · built 1900
Lot Size0.001 acres (25 sqft)
Owner2 Company Names on Record
Tax Bill$5,645 (2025)
Deeds & MortgagesJan 2023 Sale
Flood ZoneZone X (moderate risk)
APN1463-30-4-55-002

Property Details

APN / Parcel Number

Primary APN1463-30-4-55-002
Alternative APNs
  • R0105721
  • 0105721

Interior

Bedrooms2 Beds
Full Baths1.5 Baths
Half Baths1 Half Bath
Total Rooms5 Rooms
Units3 Units
Building Area1,290 sqft Living Area
1st Floor Area526 sqft
Upper Floors Area764 sqft
Interior WallsWallboard/Drywall

Exterior

Year BuiltBuilt 1900
Effective Year BuiltEffective 1987
Architectural StyleTownhouse
Exterior MaterialCombination
Construction TypeMasonry / Concrete Block
Lot Area25 sqft (0.001 acres)

Utilities, Heating & Cooling

Heating SystemHot Water

Location & Zoning

Account NumberR0105721
Street Address1843 WALNUT ST, B
CityBOULDER
StateCO
Zip80302-5579
Property CategoryResidential
Property TypeResidential > Condominium / Townhouse > Condominium
Legal DescriptionUNIT B & UND 10.57% GCE WALNUT STREET EAST CONDOS SPLIT FROM ID 506
Legal Range70
Legal Township1N
Legal Section30
Legal SubdivisionWALNUT STREET EAST CONDOS - BO
Legal Block2
Legal Lot NumberB
JurisdictionBOULDER CO
Township / Civil DivisionBOULDER
Census Block Group2
Census Block2006
Census Tract12205

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 Address1843 WALNUT ST, B, BOULDER, CO 80302-5579
Owner TypeCompany
VestingTrust, Family Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleMay 21, 1987
Deed SaleMay 21, 1987
Prior SaleMar 31, 1978
Deed Document Number1987850875
Last Transfer DateFeb 26, 2025
Transfer Doc0004086257
Record UpdatedOct 29, 2026

January 2023: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionBOULDER CO
Recording DateJan 17, 2023
Property Address1843 WALNUT ST APT B, B, BOULDER, CO 80302-5579
Document Number0003994751
Map ReferenceDOC 851386
Instrument DateJan 6, 2023
Instrument3994751
Transaction TypeTransfer
Record UpdatedJan 24, 2023

Transaction

Tax$0.00
Amount AccuracyNo Consideration Stated
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address560 VIRIDIAN DR APT 205, 205, LAFAYETTE, CO 80026-7024

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$59,663 (+0.76%) Building $59,663$947,400 (-) Building $947,400
2025$5,645.00 (+24.97%)$59,213 (+7.41%) Building $59,213$947,400 (+15.14%) Building $947,400
2023$4,517.00 (+1.41%)$55,130 (+16.91%) Building $55,130$822,830 (+21.27%) Building $822,830
2022$4,454.00$47,156 Building $47,156$678,500 Building $678,500

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

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 31 individual policies
Community Rating SystemClass 5 (25% premium discount)
Nearby Flood Policies64 units insured
incl. 33 condo units
Nearby Flood Claims6 (2013)
Claims Outside the SFHA2 of 6
Most Recent ClaimSep 2013 · Severe Storms, Flooding, Landslides, And Mudslides
Claims by Event
  • Severe Storms, Flooding, Landslides, And Mudslides, Sep 2013 · 6 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 98% of the US · lower than 99.2% of Colorado
Wildfire LikelihoodUnder 0.01% 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 432 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Ayva Networks
Fixed Wireless		2,500 / 2,500
CenturyLink
Fiber · DSL in parts of the area		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
AT&T
Fixed Wireless		100 / 20

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