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850 20th St, Apt 604, Boulder, CO 80302 Property Records

Boulder County property record for 850 20th St, Apt 604, Boulder, CO 80302

Property Summary

Property TypeCondominium
Details1 bd · 1 ba · 720 sqft · built 1967
Lot Size0.001 acres (24 sqft)
Owner2 Individual Names on File
Last Sale$300,000 (Feb 2017)
Tax Bill$2,558 (2025)
Deeds & MortgagesFeb 2017 Sale
Flood ZoneZone X (minimal risk)
APN1463-31-4-13-033

Property Details

APN / Parcel Number

Primary APN1463-31-4-13-033
Alternative APNs
  • R0083159
  • 0083159

Interior

Bedrooms1 Bed
Full Baths1 Bath
Total Rooms3 Rooms
Stories1 Story
Building Area720 sqft Living Area
1st Floor Area720 sqft
Interior WallsWallboard/Drywall

Exterior

Year BuiltBuilt 1967
Effective Year BuiltEffective 1967
Architectural StyleCondo/Apartment
Exterior MaterialBrick Veneer
Construction TypeMasonry / Concrete Block
Lot Area24 sqft (0.001 acres)
PorchPorch
Porch Area87 sqft

Utilities, Heating & Cooling

Heating SystemHot Water

Location & Zoning

Account NumberR0083159
Street Address850 20TH ST, 604
CityBOULDER
StateCO
Zip80302-7749
Property CategoryResidential
Property TypeResidential > Condominium / Townhouse > Condominium
Legal DescriptionUNIT 604 SAN MARCO NORTH CONDOS & 2.16% UND INT IN COMMONS ELEMENTS
Legal Range70
Legal Township1N
Legal Section31
Legal SubdivisionSAN MARCO NORTH CONDOS - BO
Legal Block2
JurisdictionBOULDER CO
Township / Civil DivisionBOULDER
Census Block Group2
Census Block2013
Census Tract12401

Owner

850 20th St, Apt 604 is owned by two individuals who bought it in February 2017.

Source: Boulder County records, as of September 18, 2026

Owner of Record2 Individual Names on File
Mailing Address1525 CRICKLEWOOD WAY, ZIONSVILLE, IN 46077-8748
Owner TypeIndividual
VestingJoint Tenants

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleFeb 14, 2017 · Amount on File
Deed SaleFeb 14, 2017 · Amount on File
Prior SaleMar 30, 1987 · Amount on File
Deed Document Number20173575167
Prior Transfer DateOct 17, 2003
Prior Transfer Doc0002519515
Record UpdatedOct 29, 2026

February 2017: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionBOULDER CO
Recording DateFeb 14, 2017
Property Address850 20TH ST APT 604, 604, BOULDER, CO 80302-7749
Document Number0003575167
Instrument DateFeb 8, 2017
Instrument3575167
Transaction TypeTransfer
Record UpdatedFeb 22, 2017
Title CompanyFIRST AMERICAN TITLE

Transaction

AmountAmount on Record
Tax$30.00
Amount AccuracyConfirmed
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenants with Right of Survivorship
Address1525 CRICKLEWOOD WAY ZIONSVILLE IN 460778748, ZIONSVILLE, IN 46077-8748

Tax Assessment & Valuation

The 2025 property tax bill for 850 20th St, Apt 604 was $2,558.

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$25,441 (-2.08%) Building $25,441$415,700 (-) Building $415,700
2025$2,558.00$25,981 Building $25,981$415,700 Building $415,700
2023$2,105.00 (-3.08%)$27,199 (+20.41%) Building $27,199$405,959 (+24.91%) Building $405,959
2022$2,172.00$22,588 Building $22,588$325,000 Building $325,000

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

FEMA maps place 850 20th St, Apt 604 in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2013.

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

Wildfire risk around 850 20th St, Apt 604 is low, with a 0.02% annual chance of 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.

Nearby Properties on 20th St

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