4400 E 109th Ave, Thornton (Denver), CO 80233 Property Records

Adams County property record for 4400 E 109th Ave, Thornton, CO 80233

Property Summary

Property Type	Single Family Home
Details	4 bd · 2 ba · 1,885 sqft · built 1978
Lot Size	0.219 acres (9,583 sqft)
Owner	Individual Name on Record
Last Sale	$416,000 (Jan 2021)
Tax Bill	$1,362 (2025)
Deeds & Mortgages	Oct 2020 Mortgage Jan 2021 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`R0074427`

Property Details

APN / Parcel Number

Primary APN	`R0074427`
Alternative APNs	`0172107215001` `172107215001`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Plumbing Fixtures	7 Plumbing Fixtures
Total Rooms	7 Rooms
Stories	1 Story
Building Area	1,885 sqft Living Area
1st Floor Area	1,885 sqft
Interior Walls	Wallboard/Drywall
Fireplace	Fireplace

Exterior

Year Built	Built 1978
Effective Year Built	Effective 2020
Architectural Style	Bi-Level
Exterior Material	Aluminum/Vinyl
Construction Type	Frame
Roof Type	Gable
Roof Material	Composition Shingle
Lot Area	9,583 sqft (0.219 acres)
Lot Dimensions	113 ft deep x 85 ft wide
Garage Type	Attached
Garage Area	500 sqft
Parking Spaces	2 Parking Spaces
Porch	Porch
Deck Area	160 sqft
Gazebo	190 sqft

Utilities, Heating & Cooling

Heating System	Baseboard
Heating Fuel	Electric

Location & Zoning

Account Number	R0074427
Old Parcel Number	172107215001
Street Address	4400 E 109TH AVE
City	THORNTON
State	CO
Zip	80233-5402
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	SUB:GRANGE CREEK PHASE 1 PUD FILING NO 4 LOT:133
Legal Range	67W
Legal Township	02S
Legal Section	07
Legal Quarter	NW
Legal Subdivision	GRANGE CREEK
Legal Phase	1
Legal Block	15
Legal Lot Number	133
Jurisdiction	ADAMS CO
Township / Civil Division	WEST ADAMS
Census Block Group	2
Census Block	2014
Census Tract	8534

Owner

Source: Adams County records, as of February 9, 2026

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

Owner of Record	Individual Name on Record
Mailing Address	4400 E 109TH AVE, THORNTON, CO 80233-5402
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Oct 15, 2020	Deed of Trust, Mortgage · Closed-End Mortgage FIRSTBANK
Jan 6, 2021	Warranty Deed, Transfer · Conventional Mortgage ZILLOW HOME LOANS LLC

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jan 6, 2021 · Amount on Record
Deed Sale	Jan 6, 2021 · Amount on Record
Deed Document Number	2021000001121
Record Updated	Jun 8, 2026

October 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ADAMS CO
Property Address	4400 E 109TH AVE, THORNTON, CO 80233-5402
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	LAND TITLE GUARANTEE CO

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000105246
Date	Oct 15, 2020
Instrument	2020000105246

Lender

Name	FIRSTBANK
Type	Bank
Address	DENVER, CO 80215

Agreement

Type	Closed-End Mortgage
Amount	Amount Recorded
Term	6 Months
Due	Apr 1, 2021

January 2021: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	ADAMS CO
Recording Date	Jan 6, 2021
Property Address	4400 E 109TH AVE, THORNTON, CO 80233-5402
Document Number	0000001121
Instrument Date	Jan 5, 2020
Instrument	2021000001121
Transaction Type	Transfer
Record Updated	Jan 27, 2022
Title Company	COLORADO ESCROW AND TITLE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$41.60
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4400 E 109TH AVE, THORNTON, CO 80233-5402

Mortgage

Document Number	0000001122
Date	Jan 6, 2021
Instrument	2021000001122

Lender

Name	ZILLOW HOME LOANS LLC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Feb 1, 2051

Tax Assessment & Valuation

Source: Adams County assessment roll, as of August 25, 2025

Property Jurisdictions

Type	Name
State	Colorado
County	Adams County
Municipality	Thornton City
Unified School District	Adams 12 Five Star Schools (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$1,362.00 (-66.33%)	$32,130 (-13.33%) Land $5,940 Building $26,190	$514,000 (-6.2%) Land $95,000 Building $419,000
2023	$4,045.00 (+23.1%)	$37,070 (+24.27%) Land $6,090 Building $30,980	$548,000 (+27.7%) Land $90,000 Building $458,000
2022	$3,286.00	$29,830 Land $11,400 Building $18,430	$429,138 Land $164,000 Building $265,138

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.

Flood

Source: FEMA National Flood Hazard Layer, effective October 2, 2026

FEMA Flood Zone	Zone X minimal risk
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it

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

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 98% of the US · lower than 99.2% of Colorado
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None beyond ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	CITY OF THORNTON serves 226,465 people · EPA ID CO0101150
Water Source	Surface water
Last State Inspection	Jul 2024
Lead	2 ppb (2025) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	3 last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 591 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Ting Fiber	2,000 / 2,000
Intrepid Fiber Networks Fiber	2,000 / 2,000
Xfinity Cable	1,200 / 35
Rise Broadband Fixed Wireless	300 / 60
CenturyLink DSL	140 / 20

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

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