4577 E 129th Ave, Thornton, CO 80241 Property Records

Adams County property record for 4577 E 129th Ave, Thornton, CO 80241 · Last verified February 2026

Property Highlights

Property Type	Residential > Single Family > Home
Bedrooms	3 Beds
Bathrooms	2 Baths
Year Built	Built 1979
Square Footage	1,289 sqft Living Area
Lot Size	7,841 sqft (0.18 acres)
Garage	Attached, 441 sqft
Occupancy	Owner Occupied
Tax Bill	$1,152.00 (2025)

Property Details

APN / Parcel Number

Primary APN	`R0113325`
Alternative APNs	`0157130325015` `157130325015`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Plumbing Fixtures	9 Plumbing Fixtures
Total Rooms	6 Rooms
Building Area	1,289 sqft Living Area
1st Floor	1,289 sqft 1st Floor
Basement Area	1,016 sqft Basement
Stories	1 Stories
Interior Structure	Wallboard/Drywall Interior Structure
Fireplace	Fireplace
Fireplaces	1 Fireplaces

Exterior

Year Built	Built 1979
Architectural Style	Ranch Style
Exterior Material	Brick/Stone (Brick and/or Stone) Exterior
Construction Type	Frame Construction
Roof Construction	Gable Roof Construction
Roof Material	Wood Shingle Roof
Lot Area	7,841 sqft (0.18 acres)
Depth X Width	100 ft x 80 ft Depth x Width
Parking Spaces	2 Parking Spaces
Garage Type	Attached Garage
Garage Area	441 sqft Garage
Porch	Open Porch
Porch Area	120 sqft Porch

Utilities and HVAC

Cooling System	Central Cooling
Heating System	Forced Air Heating

Location & Zoning

Account Number	R0113325
Old Parcel Number	157130325015
Street Address	4577 E 129TH AVE
City	THORNTON
State	CO
Zip	80241-2248
Property Usage	Residential Property Usage
Type	Residential > Single Family > Home
Legal Description	SUB:EAST GLENN SUBD 2ND FILING BLK:5 LOT:2
Legal Range	67W
Legal Township	01S
Legal Section	30
Legal Quarter	SW
Legal Subdivision	EAST GLENN SUBD 2ND FILING
Legal Block	5
Legal Lot Number	2
Jurisdiction	ADAMS CO
Minor Civil Division	WEST ADAMS
Census Blockgroup	2
Census Block	2009
Census Tract	8524

Owner

Source: Adams County records · APN R0113325

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 Record	2 Individuals Owners
Mailing Address	4577 E 129TH AVE, THORNTON, CO 80241-2248
Occupancy	Owner Occupied
Owner Type	Owner is an Individual, Couple or Unincorporated Entity

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Known Transactions	Mar 20, 1996 Prior Sale Amount on Jun 02, 1994
Deed Doc Number	00157033
Deed Book / Page	4330 / 243
Record Refreshed	Jun 08, 2026

April 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ADAMS CO
Property Address	4577 E 129TH AVE, THORNTON, CO 80241-2248
Transaction Type	Mortgage
Record Updated	Apr 20, 2021
Title Company	FITO

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000044128
Date	Apr 13, 2021
Instrument	2021000044128

Lender

Name	AMERICAN FINANCING CORP
Type	Lending Institution
Address	AURORA, CO 80014

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	181 Months
Due	May 01, 2036

Tax Assessment & Valuation

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

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

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$1,152.00 (-66.79%)	$27,190 (-14.5%) Land $6,250 Building $20,940	$435,000 (-7.45%) Land $100,000 Building $335,000
2023	$3,469.00 (+0.67%)	$31,800 (+1.63%) Land $6,160 Building $25,640	$470,000 (+4.38%) Land $91,000 Building $379,000
2022	$3,446.00	$31,290 Land $12,640 Building $18,650	$450,296 Land $182,000 Building $268,296