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4451 E 121st Way, Thornton, CO 80241 Property Records

Adams County property record for 4451 E 121st Way, Thornton, CO 80241 · Last verified February 2026

Property Highlights

Property TypeResidential > Single Family > Home
Bedrooms3 Beds
Bathrooms2 Baths
Year BuiltBuilt 2015
Square Footage1,560 sqft Living Area
Lot Size7,841 sqft (0.18 acres)
OccupancyOwner Occupied
Last Sale$295,000 (2017)
Tax Bill$1,166.00 (2025)

Property Details

APN / Parcel Number

Primary APNR0011639
Alternative APNs
  • 0157131311003
  • 157131311003

Interior

Bedrooms3 Beds
Full Baths2 Baths
Plumbing Fixtures8 Plumbing Fixtures
Total Rooms5 Rooms
Building Area1,560 sqft Living Area
1st Floor1,560 sqft 1st Floor
Stories1 Stories
Interior StructureWallboard/Drywall Interior Structure
FireplaceFireplace

Exterior

Year BuiltBuilt 1983
Effective Year BuiltEffective 2015
Architectural StyleBi-Level Style
Exterior MaterialAluminum/Vinyl Exterior
Construction TypeFrame Construction
Roof ConstructionGable Roof Construction
Roof MaterialComposition Shingle Roof
Lot Area7,841 sqft (0.18 acres)
Depth X Width112 ft x 71 ft Depth x Width
Parking Spaces1 Parking Spaces
Garage TypeAttached Garage
Garage Area288 sqft Garage
Deck Area120 sqft Deck
Patio Area120 sqft Patio

Utilities and HVAC

Cooling SystemCentral Cooling
Heating SystemForced Air Heating

Location & Zoning

Account NumberR0011639
Old Parcel Number157131311003
Street Address4451 E 121ST WAY
CityTHORNTON
StateCO
Zip80241-3630
Property UsageResidential Property Usage
TypeResidential > Single Family > Home
Legal DescriptionSUB:NORTHAVEN BLK:9 LOT:2
Legal Range67W
Legal Township01S
Legal Section31
Legal QuarterNE
Legal SubdivisionNORTHAVEN
Legal Block9
Legal Lot Number2
JurisdictionADAMS CO
Minor Civil DivisionWEST ADAMS
Census Blockgroup2
Census Block2013
Census Tract8547

Owner

Source: Adams County records · APN R0011639

Assessment roll updated August 25, 2025 · Last verified February 2026

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

Owner of RecordIndividual Owner on File
Co-ownerVerified Secondary Owner
Mailing Address4451 E 121ST WAY, THORNTON, CO 80241-3630
OccupancyOwner Occupied
Owner TypeOwner is an Individual, Couple or Unincorporated Entity

Deeds, Mortgages & Sale History

DateDocument
Mar 02, 2021Deed of Trust, Mortgage · Conventional Mortgage
AMERICAN FINANCING CORP
Jun 09, 2017Warranty Deed, Transfer · Federal Housing Administration (FHA) Mortgage
GUILD MORTGAGE CO

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Known Transactions
  • Last Sale Amount on Jun 09, 2017
  • Deed Sale Price on Jun 09, 2017
  • Aug 02, 2016
Deed Doc Number2017000049747
Record RefreshedJun 08, 2026

March 2021: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionADAMS CO
Property Address4451 E 121ST WAY, THORNTON, CO 80241-3630
Transaction TypeMortgage
Record UpdatedMar 09, 2021
Title CompanyFITCO

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0000024633
DateMar 02, 2021
Instrument2021000024633
Lender
NameAMERICAN FINANCING CORP
TypeLending Institution
AddressAURORA, CO 80014
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term360 Months
DueMar 01, 2051

June 2017: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionADAMS CO
Recording DateJun 09, 2017
Property Address4451 E 121ST WAY, THORNTON, CO 80241-3630
Document Number0000049747
Instrument DateJun 08, 2017
Instrument2017000049747
Transaction TypeTransfer
Record UpdatedJan 27, 2022
Title CompanyFIRST AMERICAN TITLE

Transaction

AmountAmount Recorded
Loan-to-Value (LTV)LTV on Record
Tax$29.50
Amount AccuracyFull Amount Stated
Additional
  • Arms Length Transaction

Transferred From (Grantor/Seller)

NameVerified Name
Address00000

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenants
Address4451 E 121ST WAY, THORNTON, CO 80241-3630

Mortgage

Document Number0000049748
DateJun 09, 2017
Instrument2017000049748
Lender
NameGUILD MORTGAGE CO
TypeMortgage Company
Agreement
TypeFederal Housing Administration (FHA) Mortgage
AmountAmount Recorded
Term361 Months
DueJul 01, 2047

Mortgage

Document Number0000049749
DateJun 09, 2017
Instrument2017000049749
Lender
NameCOLORADO HOUSING & FINANCE AUTHORITY
TypeGovernment Agency
AddressDENVER, CO 80202
Agreement
AmountAmount Recorded
Term361 Months
DueJul 01, 2047

Tax Assessment & Valuation

Source: Adams County records · Assessment roll updated August 25, 2025 · Last verified February 2026

Property Jurisdictions

TypeName
StateColorado
CountyAdams County
MunicipalityThornton City
Unified School DistrictAdams 12 Five Star Schools (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
2025$1,166.00 (-67.29%)$27,500 (-15.85%) Land $6,000 Building $21,500$440,000 (-8.9%) Land $96,000 Building $344,000
2023$3,565.00 (+9.36%)$32,680 (+10.41%) Land $5,820 Building $26,860$483,000 (+13.42%) Land $86,000 Building $397,000
2022$3,260.00$29,600 Land $11,960 Building $17,640$425,855 Land $172,000 Building $253,855

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