4520 E 109th Ave, Thornton (Denver), CO 80233 Property Records

Adams County property record for 4520 E 109th Ave, Thornton, CO 80233

Property Summary

Property TypeSingle Family Home
Details4 bd · 2 ba · 1,885 sqft · built 1978
Lot Size0.195 acres (8,475 sqft)
OwnerIndividual Name on File
Last Sale$345,000 (Dec 2017)
Tax Bill$1,338 (2025)
Deeds & MortgagesMay 2017 Mortgage
Oct 2020 Mortgage
+ 1 more
Flood ZoneZone X (minimal risk)
APN1721-07-2-15-007

Property Details

APN / Parcel Number

Primary APN1721-07-2-15-007
Alternative APNs
  • 0172107215007
  • R0074433

Interior

Bedrooms4 Beds
Full Baths2 Baths
Plumbing Fixtures10 Plumbing Fixtures
Total Rooms7 Rooms
Stories1 Story
Building Area1,885 sqft Living Area
Gross Area2,729 sqft
1st Floor Area1,885 sqft
Basement Area840 sqft
Interior WallsWallboard/Drywall
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1978
Effective Year BuiltEffective 2016
Architectural StyleBi-Level
Exterior MaterialAluminum/Vinyl
Construction TypeFrame
Roof TypeGable
Roof MaterialComposition Shingle
Lot Area8,475 sqft (0.195 acres)
Lot Dimensions113 ft deep x 75 ft wide
Garage TypeAttached
Garage Area500 sqft
Parking Spaces2 Parking Spaces

Exterior Amenities

PorchCovered Wood Porch
Porch Area444 sqft
Deck Area344 sqft
Patio Area344 sqft
Shed1 Shed
Shed Area160 sqft

Utilities, Heating & Cooling

Heating SystemBaseboard
Heating FuelElectric

Location & Zoning

Account NumberR0074433
Street Address4520 E 109TH AVE
CityTHORNTON
StateCO
Zip80233-5404
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionSUB:GRANGE CREEK PHASE 1 PUD FILING NO 4 LOT:139
Legal Range67W
Legal Township02S
Legal Section07
Legal Quarter2
Legal SubdivisionGRANGE CREEK
Legal Lot Number139
JurisdictionADAMS CO
Township / Civil DivisionWEST ADAMS
Census Block Group2
Census Block2014
Census Tract8534

Owner

Source: Adams County records · APN 1721-07-2-15-007

Assessment roll updated January 21, 2026 · Last verified April 2026

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

Owner of RecordIndividual Name on File
Mailing Address4520 E 109TH AVE, THORNTON, CO 80233-5404
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

DateDocument
May 15, 2017Deed of Trust, Mortgage · Conventional Mortgage
CHERRY CREEK MORTGAGE CO INC
Oct 28, 2020Deed of Trust, Mortgage · Conventional Mortgage
UNITED WHOLESALE MORTGAGE
Dec 22, 2017Warranty Deed, Transfer · Conventional Mortgage
UNITED WHOLESALE MORTGAGE

Assessor's Deed Record

Deed NamesVerified Name on Deed
Last SaleDec 22, 2017 · Amount on Record
Deed SaleDec 22, 2017 · Amount on Record
Prior SaleOct 22, 2012 · Amount on Record
Deed Document Number2017112775
Prior Transfer DateDec 18, 1998
Prior Transfer Doc000C488385
Record UpdatedJun 08, 2026

May 2017: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionADAMS CO
Property Address4520 E 109TH AVE, THORNTON, CO 80233-5404
Transaction TypeMortgage
Record UpdatedJun 21, 2022
Title CompanyFIRST INTEGRITY TITLE

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0000041880
DateMay 15, 2017
Instrument2017000041880
Lender
NameCHERRY CREEK MORTGAGE CO INC
TypeMortgage Company
AddressENGLEWOOD, CO 80111
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueJun 01, 2047

October 2020: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionADAMS CO
Property Address4520 E 109TH AVE, THORNTON, CO 80233-5404
Transaction TypeMortgage
Record UpdatedJun 21, 2022
Title CompanyPRESTIGE TITLE & ESCROW

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0000110761
DateOct 28, 2020
Instrument2020000110761
Lender
NameUNITED WHOLESALE MORTGAGE
TypeMortgage Company
AddressPONTIAC, MI 48341
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term325 Months
DueNov 01, 2047

December 2017: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionADAMS CO
Recording DateDec 22, 2017
Property Address4520 E 109TH AVE, THORNTON, CO 80233-5404
Document Number0000112775
Instrument DateDec 12, 2017
Instrument2017000112775
Transaction TypeTransfer
Record UpdatedJun 21, 2022

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$34.50
Amount AccuracyFull Amount Stated
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name
AddressID 00000

Transferred To (Grantee/Buyer)

NameVerified Name
Address4520 E 109TH AVE, THORNTON, CO 80233-5404

Mortgage

Document Number0000112776
DateDec 22, 2017
Instrument2017000112776
Lender
NameUNITED WHOLESALE MORTGAGE
TypeMortgage Company
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueJan 01, 2048

Tax Assessment & Valuation

Source: Adams County records · Assessment roll updated January 21, 2026 · Last verified April 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$1,338.00 (-60.44%)$34,340 (-5.66%) Land $6,460 Building $27,880$505,000 (-6.13%) Land $95,000 Building $410,000
2024$3,382.00 (-14.83%)
2023$3,971.00 (+13.36%)$36,400 (+14.47%) Land $6,090 Building $30,310$538,000 (+17.57%) Land $90,000 Building $448,000
2022$3,503.00$31,800 Land $11,400 Building $20,400$457,581 Land $164,000 Building $293,581

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Adams County (08001C), updated October 2, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it

Wildfire

Wildfire RiskLow
lower than 98% of the US · lower than 99.2% of Colorado
Wildfire LikelihoodUnder 0.01% annual chance
ExposureNone
beyond ember reach

Values are read at the parcel center point; lenders make the official flood determination.

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · sampled at 591 locations within half a mile · Last verified October 2026

ProviderMax Down / Up (Mbps)
Ting Fiber
Fiber
2,000 / 2,000
BIF IV Intrepid HoldCo
Fiber
2,000 / 2,000
Xfinity
Cable
1,200 / 35
JAB Wireless
Fixed Wireless
300 / 60
Lumen Technologies
DSL
140 / 20

May also be available: Aerux, T-Mobile USA, Verizon.

Drinking Water

Source: EPA Safe Drinking Water Information System via ECHO, 2026 Q3 · EPA community water system boundaries v3.0, March 2026 · Last verified October 2026

Water SystemCITY OF THORNTON
serves 226,465 people
Water SourceSurface water
Last State InspectionJul 2024
Lead2 ppb (2025)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and Reporting3
last 3 years

Results are for the whole water system as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.

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