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12420 First St, Thornton, CO 80241 Property Records

Adams County property record for 12420 First St, Thornton, CO 80241 · Last verified February 2026

Property Highlights

Property TypeResidential > Single Family > Home
Bedrooms3 Beds
Bathrooms3 Baths
Year BuiltBuilt 2002
Square Footage2,133 sqft Living Area
Lot Size9,148 sqft (0.21 acres)
OccupancyOwner Occupied
Last Sale$231,000 (2012)
Tax Bill$1,449.00 (2025)

Property Details

APN / Parcel Number

Primary APNR0141061
Alternative APNs
  • 0157335105041
  • 157335105041

Interior

Bedrooms3 Beds
Full Baths3 Baths
Plumbing Fixtures12 Plumbing Fixtures
Total Rooms6 Rooms
Building Area2,133 sqft Living Area
1st Floor2,133 sqft 1st Floor
Basement Area2,133 sqft Basement
Finished Basement320 sqft Finished
Stories1 Stories
Interior StructureWallboard/Drywall Interior Structure
FireplaceFireplace
Fireplaces1 Fireplaces

Exterior

Year BuiltBuilt 2002
Architectural StyleRanch Style
Exterior MaterialStucco Exterior
Construction TypeFrame Construction
Roof ConstructionGable Roof Construction
Roof MaterialComposition Shingle Roof
Lot Area9,148 sqft (0.21 acres)
Parking Spaces3 Parking Spaces
Garage TypeAttached Garage
Garage Area858 sqft Garage
Deck Area472 sqft Deck
Patio Area472 sqft Patio

Utilities and HVAC

Cooling SystemCentral Cooling
Heating SystemForced Air Heating

Location & Zoning

Account NumberR0141061
Old Parcel Number157335105041
Street Address12420 FIRST ST
CityTHORNTON
StateCO
Zip80241-3823
Property UsageResidential Property Usage
TypeResidential > Single Family > Home
Legal DescriptionSUB:EASTLAKE SUBDIVISION PLUNK AMENDMENT LOT:1
Legal Range68W
Legal Township01S
Legal Section35
Legal QuarterNE
Legal SubdivisionEASTLAKE
Legal Lot Number1
JurisdictionADAMS CO
Minor Civil DivisionWEST ADAMS
Census Blockgroup3
Census Block3022
Census Tract8555

Owner

Source: Adams County records · APN R0141061

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 Address12420 FIRST ST, THORNTON, CO 80241-3823
OccupancyOwner Occupied
Owner TypeOwner is an Individual, Couple or Unincorporated Entity

Deeds, Mortgages & Sale History

DateDocument
Oct 24, 2023Deed of Trust, Mortgage · Stand Alone Second Mortgage
PENNYMAC LOAN SERVICES LLC
Jun 02, 2021Intrafamily Transfer, Transfer · Conventional Mortgage
AMERICAN FINANCIAL NETWORK INC
Jun 26, 2019Deed of Trust, Mortgage · Line of Credit
BELLCO CU

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Known Transactions
  • Last Sale Amount on Feb 15, 2012
  • Deed Sale Price on Feb 15, 2012
  • Prior Sale Amount on Feb 15, 2012
Deed Doc Number0000011243
Last Transfer DateJun 02, 2021
Transfer Doc0000066026
Record RefreshedJun 08, 2026

October 2023: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionADAMS CO
Property Address12420 FIRST ST, THORNTON, CO 80241-3823
Transaction TypeMortgage
Record UpdatedOct 31, 2023

Transferred To (Grantee/Buyer)

NameVerified Name
Address12420 FIRST ST, THORNTON, CO 80241-3823

Mortgage

Document Number0000060033
DateOct 24, 2023
Instrument2023000060033
Lender
NamePENNYMAC LOAN SERVICES LLC
TypeMortgage Company
AddressWESTLAKE VILLAGE, CA 91361
Agreement
TypeStand Alone Second Mortgage
AmountAmount Recorded
Term361 Months
DueNov 01, 2053

June 2021: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionADAMS CO
Recording DateJun 02, 2021
Property Address12420 FIRST ST, THORNTON, CO 80241-3823
Document Number0000066026
Map ReferenceDOC C0897821
Instrument DateMar 25, 2021
Instrument2021000066026
Transaction TypeTransfer
Record UpdatedJun 21, 2022
Title CompanySTEWART TITLE, STEWART TILTE

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Interfamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenants
Address12420 FIRST ST, THORNTON, CO 80241-3823

Mortgage

Document Number0000066027
DateJun 02, 2021
Instrument2021000066027
Lender
NameAMERICAN FINANCIAL NETWORK INC
TypeFunding / Finance Company
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term238 Months
DueApr 01, 2041

June 2019: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionADAMS CO
Property Address12420 FIRST ST, THORNTON, CO 80241-3823
Document Number0000052389
Instrument DateJun 26, 2019
Transaction TypeMortgage
Record UpdatedJul 11, 2019
Title CompanyNOT AVAILABLE

Transferred To (Grantee/Buyer)

NameVerified Name
Address12420 FIRST ST THORNTON CO 802413823, THORNTON, CO 80241-3823

Mortgage

Document Number0000052389
DateJul 05, 2019
Instrument52389
Lender
NameBELLCO CU
TypeCredit Union
AddressGREENWOOD, CO 80111
Agreement
TypeLine of Credit
AmountAmount Recorded
Term240 Months
DueJul 04, 2039
Interest
Rate TypeAdjustable Rate

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$1,449.00 (-73.75%)$34,190 (-32.44%) Land $8,230 Building $25,960$647,000 (-13.5%) Land $155,750 Building $491,250
2023$5,521.00 (+6.64%)$50,610 (+7.68%) Land $10,540 Building $40,070$748,000 (+10.59%) Land $155,750 Building $592,250
2022$5,177.00$47,000 Land $19,940 Building $27,060$676,348 Land $287,000 Building $389,348

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