4143 E 129th Cir, Thornton, CO 80241 Property Records

Adams County property record for 4143 E 129th Cir, Thornton, CO 80241

Property Summary

Property Type	Single Family Home
Details	3 bd · 3 ba · 1,516 sqft · built 1988
Lot Size	0.13 acres (5,663 sqft)
Owner	2 Individual Names on Record
Last Sale	$429,400 (Sep 2020)
Tax Bill	$1,399 (2025)
Deeds & Mortgages	Mar 2018 Mortgage Sep 2020 Sale + 1 more
Flood Zone	Zone X (minimal risk)
APN	`R0010388`

Property Details

APN / Parcel Number

Primary APN	`R0010388`
Alternative APNs	`0157130319035` `157130319035`

Interior

Bedrooms	3 Beds
Full Baths	3 Baths
Plumbing Fixtures	12 Plumbing Fixtures
Total Rooms	7 Rooms
Stories	2 Stories
Building Area	1,516 sqft Living Area
1st Floor Area	848 sqft
2nd Floor Area	668 sqft
Basement Area	482 sqft
Interior Walls	Wallboard/Drywall
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1988
Effective Year Built	Effective 2020
Architectural Style	Split Level
Exterior Material	Aluminum/Vinyl
Construction Type	Frame
Roof Type	Gable
Roof Material	Composition Shingle
Lot Area	5,663 sqft (0.13 acres)
Lot Dimensions	111 ft deep x 52 ft wide
Garage Type	Attached
Garage Area	400 sqft
Parking Spaces	2 Parking Spaces

Exterior Amenities

Porch	Open Porch
Porch Area	288 sqft
Deck Area	180 sqft
Patio Area	180 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air

Location & Zoning

Account Number	R0010388
Old Parcel Number	157130319035
Street Address	4143 E 129TH CIR
City	THORNTON
State	CO
Zip	80241-2277
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	SUB:COUNTRY HILLS NO 2 BLK:1 LOT:51
Legal Range	67W
Legal Township	01S
Legal Section	30
Legal Quarter	SW
Legal Subdivision	COUNTRY HILLS NO 2
Legal Block	1
Legal Lot Number	51
Jurisdiction	ADAMS CO
Township / Civil Division	WEST ADAMS
Census Block Group	4
Census Block	4007
Census Tract	8524

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	2 Individual Names on Record
Mailing Address	4143 E 129TH CIR, THORNTON, CO 80241-2277
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Mar 26, 2018	Deed of Trust, Mortgage · Commercial Mortgage STATE FARM BANK FSB
Sep 11, 2020	Warranty Deed, Transfer NOT AVAILABLE
Nov 21, 2017	Intrafamily Transfer, Transfer · Conventional Mortgage STATE FARM BANK FSB

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Sep 11, 2020 · Amount on Record
Deed Sale	Sep 11, 2020 · Amount on Record
Prior Sale	Nov 21, 2017
Deed Document Number	2020000090614
Record Updated	Jun 8, 2026

March 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ADAMS CO
Property Address	4143 E 129TH CIR, THORNTON, CO 80241-2277
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	TITLE FIRST AGENCY

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000023948
Date	Mar 26, 2018
Instrument	2018000023948

Lender

Name	STATE FARM BANK FSB
Type	Bank
Address	BLOOMINGTON, IL 61710

Agreement

Type	Commercial Mortgage
Amount	Amount Recorded
Term	300 Months
Due	Mar 12, 2043

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

September 2020: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	ADAMS CO
Recording Date	Sep 11, 2020
Property Address	4143 E 129TH CIR, THORNTON, CO 80241-2277
Document Number	0000090614
Instrument Date	Sep 9, 2020
Instrument	90614
Transaction Type	Transfer
Record Updated	Sep 17, 2020
Title Company	NOT AVAILABLE

Transaction

Amount	Amount Recorded
Tax	$43.00
Amount Accuracy	Confirmed
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	111253 GRAY ST WESTMINSTER CO 80020, WESTMINSTER, CO 80020

November 2017: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	ADAMS CO
Recording Date	Nov 21, 2017
Property Address	4143 E 129TH CIR, THORNTON, CO 80241-2277
Document Number	0000102942
Instrument Date	Nov 16, 2017
Instrument	2017000102942
Transaction Type	Transfer
Record Updated	Jan 27, 2022

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name
Address	00000

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4143 E 129TH CIR, THORNTON, CO 80241-2277

Mortgage

Document Number	0000102943
Date	Nov 21, 2017
Instrument	2017000102943

Lender

Name	STATE FARM BANK FSB
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Dec 1, 2047

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	$1,399.00 (-65.09%)	$33,000 (-10.16%) Land $8,560 Building $24,440	$528,000 (-2.76%) Land $137,000 Building $391,000
2023	$4,007.00 (+11.46%)	$36,730 (+12.53%) Land $6,830 Building $29,900	$543,000 (+15.62%) Land $101,000 Building $442,000
2022	$3,595.00	$32,640 Land $14,040 Building $18,600	$469,624 Land $202,000 Building $267,624

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
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	Not rated no burnable land within 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 771 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Rise Broadband Fixed Wireless	500 / 100
Verizon Fixed Wireless	300 / 20
CenturyLink DSL	140 / 20

May also be available: AT&T.

Cell Coverage

5G (outdoors only) and 4G LTE

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