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3640 E 99th Ln, Thornton (Denver), CO 80229 Property Records

Adams County property record for 3640 E 99th Ln, Thornton, CO 80229 · Last verified February 2026

Property Highlights

Property TypeResidential > Single Family > Home
Bedrooms3 Beds
Bathrooms3 Baths
Year BuiltBuilt 1991
Square Footage2,171 sqft Living Area
Lot Size6,970 sqft (0.16 acres)
OccupancyOwner Occupied
Last Sale$224,000 (2014)
Tax Bill$1,333.00 (2025)

Property Details

APN / Parcel Number

Primary APNR0040410
Alternative APNs
  • 0171913409025
  • 171913409025

Interior

Bedrooms3 Beds
Full Baths3 Baths
Plumbing Fixtures13 Plumbing Fixtures
Total Rooms7 Rooms
Building Area2,171 sqft Living Area
1st Floor966 sqft 1st Floor
2nd Floor851 sqft 2nd Floor
Stories2 Stories
Interior StructureWallboard/Drywall Interior Structure
FireplaceFireplace
Fireplaces1 Fireplaces

Exterior

Year BuiltBuilt 1991
Architectural StyleSplit Level Style
Exterior MaterialAluminum/Vinyl Exterior
Construction TypeFrame Construction
Roof ConstructionGable Roof Construction
Roof MaterialComposition Shingle Roof
Lot Area6,970 sqft (0.16 acres)
Depth X Width100 ft x 70 ft Depth x Width
Parking Spaces2 Parking Spaces
Garage TypeAttached Garage
Garage Area420 sqft Garage

Utilities and HVAC

Cooling SystemCentral Cooling
Heating SystemForced Air Heating

Location & Zoning

Account NumberR0040410
Old Parcel Number171913409025
Street Address3640 E 99TH LN
CityTHORNTON
StateCO
Zip80229-2841
Property UsageResidential Property Usage
TypeResidential > Single Family > Home
Legal DescriptionSUB:NORTH HILLS FILING NUMBER ONE SUBD BLK:5 LOT:2
Legal Range68W
Legal Township02S
Legal Section13
Legal QuarterSW
Legal SubdivisionNORTH HILLS FILING NUMBER ONE SUBD
Legal Block5
Legal Lot Number2
JurisdictionADAMS CO
Minor Civil DivisionWEST ADAMS
Census Blockgroup1
Census Block1007
Census Tract9207

Owner

Source: Adams County records · APN R0040410

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
Mailing Address3640 E 99TH LN, THORNTON, CO 80229-2841
OccupancyOwner Occupied
Owner TypeOwner is an Individual, Couple or Unincorporated Entity

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesVerified Name on Deed
Known Transactions
  • Last Sale Amount on Jan 08, 2014
  • Deed Sale Price on Jan 08, 2014
Deed Doc Number2014000001526
Record RefreshedJun 08, 2026

April 2017: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionADAMS CO
Property Address3640 E 99TH LN, THORNTON, CO 80229-2841
Document Number0000037609
Instrument DateApr 13, 2017
Transaction TypeMortgage
Record UpdatedMay 09, 2017
Title CompanyNATIONWIDE TITLE CLEARING INC

Transferred To (Grantee/Buyer)

NameVerified Name
Address3640 E 99TH LN THORNTON CO 802292841, THORNTON, CO 80229-2841

Mortgage

Document Number0000037609
DateMay 01, 2017
Instrument37609
Lender
NameANHEUSER BUSCH EMPS CU
TypeCredit Union
AddressSAINT LOUIS, MO 63118
Agreement
TypeLine of Credit
AmountAmount Recorded
Term300 Months
DueApr 30, 2042
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 DistrictMapleton School District 1 (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$1,333.00 (-64.68%)$31,440 (-17.74%) Land $5,630 Building $25,810$503,000 (-10.97%) Land $90,000 Building $413,000
2023$3,774.00 (+13.85%)$38,220 (+14.91%) Land $5,750 Building $32,470$565,000 (+18.08%) Land $85,000 Building $480,000
2022$3,315.00$33,260 Land $11,820 Building $21,440$478,509 Land $170,000 Building $308,509

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