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720 S 42nd St, Boulder, CO 80305 Property Records

Boulder County property record for 720 S 42nd St, Boulder, CO 80305 · Last verified June 2026

Property Highlights

Property TypeResidential > Single Family > Home
Bedrooms4 Beds
Bathrooms1.5 Baths
Year BuiltBuilt 1975
Square Footage2,107 sqft Living Area
Lot Size7,024 sqft (0.161 acres)
OccupancyOwner Occupied
Last Sale$597,500 (2017)
Tax Bill$5,048.00 (2025)

Property Details

APN / Parcel Number

Primary APN1577-08-1-05-014
Alternative APNs
  • R0013489
  • 0013489

Interior

Bedrooms4 Beds
Full Baths1.5 Baths
Partial Baths1 Partial Baths
Total Rooms5 Rooms
Building Area2,107 sqft Living Area
Gross Area2,478 sqft Gross Area
1st Floor1,107 sqft 1st Floor
Basement Area1,107 sqft Basement
Finished Basement1,000 sqft Finished
Unfinished Basement107 sqft Unfinished
Stories1 Stories
Interior StructureWallboard/Drywall Interior Structure

Exterior

Year BuiltBuilt 1958
Effective Year BuiltEffective 1975
Architectural StyleRanch Style
Exterior MaterialBrick Veneer Exterior
Construction TypeMasonry/Concrete Masonry Units (CMUs) Construction
Lot Area7,024 sqft (0.161 acres)
Parking Spaces1 Parking Spaces
Garage TypeAttached Garage
Garage Area264 sqft Garage

Utilities and HVAC

Cooling SystemCentral Cooling
Heating SystemForced Air with Air Conditioning Heating

Location & Zoning

Account NumberR0013489
Street Address720 S 42ND ST
CityBOULDER
StateCO
Zip80305-5911
Property UsageResidential Property Usage
TypeResidential > Single Family > Home
Legal DescriptionLOT 14 BLK 5 MARTIN ACRES 3
Legal Range70
Legal Township1S
Legal Section05
Legal SubdivisionMARTIN ACRES 3 - BO
Legal Block5
Legal Lot Number14
JurisdictionBOULDER CO
Minor Civil DivisionBOULDER
Census Blockgroup3
Census Block3003
Census Tract12508

Owner

Source: Boulder County records · APN 1577-08-1-05-014

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 Record2 Individual Names on File
Mailing Address720 S 42ND ST, BOULDER, CO 80305-5911
OccupancyOwner Occupied
Owner TypeOwner is an Individual, Couple or Unincorporated Entity

Deeds, Mortgages & Sale History

DateDocument
Oct 25, 2021Deed of Trust, Mortgage · Conventional Mortgage
ROCKET MORTGAGE LLC
Mar 18, 2020Deed of Trust, Mortgage · Conventional Mortgage
QUICKEN LNS
Oct 23, 2017Warranty Deed, Transfer · Conventional Mortgage
CHERRY CREEK MORTGAGE CO INC

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleOct 23, 2017 · Amount on Record
Deed SaleOct 23, 2017 · Amount on Record
Prior SaleFeb 03, 1993 · Amount on Record
Deed Doc Number20173621459
Record RefreshedSep 20, 2026

October 2021: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionBOULDER CO
Property Address720 S 42ND ST, BOULDER, CO 80305-5911
Transaction TypeMortgage
Record UpdatedNov 11, 2021
Title CompanyAMROCK INC

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0003923482
DateOct 25, 2021
Instrument3923482
Lender
NameROCKET MORTGAGE LLC
TypeMortgage Company
AddressDETROIT, MI 48226
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueNov 01, 2051

March 2020: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionBOULDER CO
Property Address720 S 42ND ST, BOULDER, CO 80305-5911
Document Number0003773573
Instrument DateMar 18, 2020
Transaction TypeMortgage
Record UpdatedJun 08, 2020
Title Company8Z TITLE

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipHusband And Wife
Address720 S 42ND ST BOULDER CO 803055911, BOULDER, CO 80305-5911

Mortgage

Document Number0003773573
DateMar 23, 2020
Instrument3773573
Lender
NameQUICKEN LNS
TypeFunding / Finance Company
AddressDETROIT, MI 48226-1906
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term240 Months
DueMar 22, 2040

October 2017: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionBOULDER CO
Recording DateOct 23, 2017
Property Address720 S 42ND ST, BOULDER, CO 80305-5911
Document Number0003621459
Map ReferenceMB7 PG8
Instrument DateOct 17, 2017
Instrument3621459
Transaction TypeTransfer
Record UpdatedMar 31, 2022
Title CompanyCHICAGO TITLE

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$59.75
Amount AccuracyFull Amount Stated
Additional
  • Arms Length Transaction

Transferred From (Grantor/Seller)

NameVerified Name
Address00000

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenants
Address720 S 42ND ST, BOULDER, CO 80305-5911

Mortgage

Document Number0003621460
DateOct 23, 2017
Instrument3621460
Lender
NameCHERRY CREEK MORTGAGE CO INC
TypeMortgage Company
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueNov 01, 2047

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$57,609 (+8.8%) Land $32,055 Building $25,554$847,200 (-) Land $471,400 Building $375,800
2025$5,048.00 (+1.79%)$52,951 (-13.35%) Land $29,463 Building $23,488$847,200 (-7.12%) Land $471,400 Building $375,800
2023$4,959.00 (+13.97%)$61,111 (+30.42%) Land $34,813 Building $26,298$912,100 (+35.29%) Land $519,600 Building $392,500
2022$4,351.00$46,857 Land $25,917 Building $20,940$674,200 Land $372,900 Building $301,300

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