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370 20th St, Boulder, CO 80302 Property Records

Boulder County property record for 370 20th St, Boulder, CO 80302 · Last verified July 2026

Property Highlights

Property TypeResidential > Single Family > Home
Bedrooms5 Beds
Bathrooms2.5 Baths
Year BuiltBuilt 1975
Square Footage2,700 sqft Living Area
Lot Size6,750 sqft (0.155 acres)
OccupancyOwner Occupied
Last Sale$1,325,000 (2026)
Tax Bill$8,199.00 (2025)

Property Details

APN / Parcel Number

Primary APN1577-06-1-10-002
Alternative APNs
  • R0003144
  • 0003144

Interior

Bedrooms5 Beds
Full Baths2.5 Baths
Partial Baths2 Partial Baths
Total Rooms9 Rooms
Building Area2,700 sqft Living Area
Gross Area3,052 sqft Gross Area
1st Floor1,350 sqft 1st Floor
Basement Area1,350 sqft Basement
Finished Basement1,350 sqft Finished
Stories1 Stories
Interior StructureWallboard/Drywall Interior Structure

Exterior

Year BuiltBuilt 1963
Effective Year BuiltEffective 1975
Architectural StyleRanch Style
Exterior MaterialBrick Veneer Exterior
Construction TypeMasonry/Concrete Masonry Units (CMUs) Construction
Roof MaterialAsphalt Roof
Lot Area6,750 sqft (0.155 acres)
Parking Spaces2 Parking Spaces
Garage TypeAttached Garage
Garage Area352 sqft Garage

Utilities and HVAC

Heating SystemHot Water Heating

Location & Zoning

Account NumberR0003144
Street Address370 20TH ST
CityBOULDER
StateCO
Zip80302-8011
Property UsageResidential Property Usage
TypeResidential > Single Family > Home
Legal DescriptionS 1/2 LOTS 1 & 2 BLK 16 INTERURBAN PARK
Legal Range70
Legal Township1S
Legal Section06
Legal SubdivisionINTERURBAN PARK - BO
Legal Block16
Legal Lot Number1
JurisdictionBOULDER CO
Minor Civil DivisionBOULDER
Census Blockgroup1
Census Block1025
Census Tract12505

Owner

Source: Boulder County records · APN 1577-06-1-10-002

Assessment roll updated June 15, 2026 · Last verified July 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record2 Individuals Owners
Mailing Address370 20TH ST, BOULDER, CO 80302-8011
OccupancyOwner Occupied
Owner TypeOwner is an Individual, Couple or Unincorporated Entity
VestingJoint Tenants

Deeds, Mortgages & Sale History

DateDocument
Apr 01, 2026Warranty Deed, Transfer · Conventional Mortgage
HERITAGE TITLE LT, HERITAGE TITLE
Apr 01, 2026Warranty Deed, Transfer
HERITAGE TITLE LT, HERITAGE TITLE
Apr 20, 2021Quit Claim Deed, Transfer
Quitclaim Document

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Known Transactions
  • Last Sale Amount on Apr 01, 2026
  • Deed Sale Price on Apr 01, 2026
  • Prior Sale Amount on Jul 20, 2015
Deed Doc Number20264126056
Prior Transfer DateJan 09, 2015
Prior Transfer Doc0003421834
Record RefreshedSep 20, 2026

April 2026: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionBOULDER CO
Recording DateApr 01, 2026
Property Address370 20TH ST, BOULDER, CO 80302-8011
Document Number0004126056
Instrument DateMar 31, 2026
Instrument20264126056
Transaction TypeTransfer
Record UpdatedJul 02, 2026
Title CompanyHERITAGE TITLE LT, HERITAGE TITLE

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$13,382.50
Amount AccuracyCalculated from Tax (Full/Partial Unknown)
Additional
  • Arms Length Transaction

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenants
Address370 20TH ST, BOULDER, CO 80302-8011

Mortgage

Document Number0004126057,
DateApr 01, 2026
Instrument20264126057
Lender
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term360 Months
DueApr 01, 2056
Interest
Rate TypeAdjustable Rate
Rate6.01%
Initial TypeAdjustable Rate
AdjustableDocument includes a rider for adjustable-rate mortgage with a specific rate change date.
Max Rate-1%

April 2026: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionBOULDER CO
Recording DateApr 01, 2026
Property Address370 20TH ST, BOULDER, CO 80302-8011
Document Number0004126055
Instrument DateMar 03, 2026
Instrument20264126055
Transaction TypeTransfer
Record UpdatedJul 13, 2026
Title CompanyHERITAGE TITLE LT, HERITAGE TITLE

Transaction

Tax$0.00
Amount AccuracyFull Amount Stated
Additional
  • Arms Length Transaction

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipRevocable Trust
Address370 20TH ST, BOULDER, CO 80302-8011

April 2021: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionBOULDER CO
Recording DateApr 20, 2021
Property Address370 20TH ST, BOULDER, CO 80302-8011
Document Number0003878437
Instrument DateApr 19, 2021
Instrument3878437
Transaction TypeTransfer
Record UpdatedMar 31, 2022

Transaction

AmountAmount Recorded
Tax$60.00
Amount AccuracyFull Amount Stated
Additional
  • Quitclaim Document
  • Interfamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name
Address989 GRANT PL, 989, BOULDER, CO 80302-7116

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipRevocable Trust
Address327 N JEFFERSON ST, SHERIDAN, WY 82801-3804

Tax Assessment & Valuation

Source: Boulder County records · Assessment roll updated June 15, 2026 · Last verified July 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$92,637 (+8.8%) Land $62,295 Building $30,342$1,362,300 (-) Land $916,100 Building $446,200
2025$8,199.00 (+11.48%)$85,144 (-1.54%) Land $57,256 Building $27,888$1,362,300 (+5.55%) Land $916,100 Building $446,200
2024$7,355.00 (+1.81%)
2023$7,224.00 (+4.86%)$86,477 (+17.84%) Land $58,337 Building $28,140$1,290,700 (+22.24%) Land $870,700 Building $420,000
2022$6,889.00$73,385 Land $47,802 Building $25,583$1,055,900 Land $687,800 Building $368,100

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