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830 20th St, Apt 105, Boulder, CO 80302 Property Records

Boulder County property record for 830 20th St, Apt 105, Boulder, CO 80302

Property Summary

Property TypeCondominium
Details1 bd · 1 ba · 665 sqft · built 1963
Lot Size0.001 acres (24 sqft)
OwnerIndividual Name on Record
Last Sale$341,000 (Jul 2023)
Tax Bill$2,317 (2025)
Deeds & MortgagesJul 2023 Sale
Flood ZoneZone X (minimal risk)
APN1463-31-4-14-005

Property Details

APN / Parcel Number

Primary APN1463-31-4-14-005
Alternative APNs
  • R0083171
  • 0083171

Interior

Bedrooms1 Bed
Full Baths1 Bath
Total Rooms3 Rooms
Stories1 Story
Building Area665 sqft Living Area
1st Floor Area665 sqft
Interior WallsWallboard/Drywall

Exterior

Year BuiltBuilt 1963
Effective Year BuiltEffective 1963
Architectural StyleCondo/Apartment
Exterior MaterialBrick Veneer
Construction TypeMasonry / Concrete Block
Lot Area24 sqft (0.001 acres)

Utilities, Heating & Cooling

Heating SystemHot Water

Location & Zoning

Account NumberR0083171
Street Address830 20TH ST, 105
CityBOULDER
StateCO
Zip80302-7736
Property CategoryResidential
Property TypeResidential > Condominium / Townhouse > Condominium
Legal DescriptionUNIT 105 SAN MARCO SOUTH CONDOS & 2.60% UND INT COMMON ELEMENTS
Legal Range70
Legal Township1N
Legal Section31
Legal SubdivisionSAN MARCO SOUTH CONDOS - BO
Legal Block2
JurisdictionBOULDER CO
Township / Civil DivisionBOULDER
Census Block Group2
Census Block2013
Census Tract12401

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 RecordIndividual Name on Record
Mailing Address322 STEELE ST, DENVER, CO 80206-4415
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleJul 27, 2023 · Amount on Record
Deed SaleJul 27, 2023 · Amount on Record
Prior SaleSep 14, 1979 · Amount on Record
Deed Document Number20234016154
Record UpdatedOct 29, 2026

July 2023: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionBOULDER CO
Recording DateJul 27, 2023
Property Address830 20TH ST APT 105, 105, BOULDER, CO 80302-7736
Document Number0004016154
Map ReferenceMF 1068 DOC 343841
Instrument DateJul 25, 2023
Instrument4016154
Transaction TypeTransfer
Record UpdatedAug 23, 2023
Title CompanyFIRST ALLIANCE TITLE

Transaction

AmountAmount Recorded
Tax$34.10
Amount AccuracyFull Amount Stated
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address3777 NEWTON ST, DENVER, CO 80211-2748

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$22,968 (-2.08%) Building $22,968$375,300 (-) Building $375,300
2025$2,317.00 (+26.68%)$23,456 (-2.26%) Building $23,456$375,300 (+4.78%) Building $375,300
2023$1,829.00 (-14.97%)$23,998 (+7.34%) Building $23,998$358,181 (+11.34%) Building $358,181
2022$2,151.00$22,358 Building $22,358$321,700 Building $321,700

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 X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Nearby Flood Claims1 (2013)
Claims Outside the SFHA1 of 1
Most Recent ClaimSep 2013 · Severe Storms, Flooding, Landslides, And Mudslides

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 80% of the US · lower than 91% of Colorado
Wildfire Likelihood0.02% annual chance
ExposureNone
beyond ember reach

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 481 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

May also be available: Magnolia Road Internet Cooperative.

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