4433 E 129th Ave, Thornton, CO 80241 Property Records

Adams County property record for 4433 E 129th Ave, Thornton, CO 80241

Property Summary

Property Type	Single Family Home
Details	4 bd · 2 ba · 1,634 sqft · built 1978
Lot Size	0.184 acres (8,000 sqft)
Owner	2 Individual Names on Record
Last Sale	$565,000 (Feb 2026)
Tax Bill	$1,189 (2025)
Deeds & Mortgages	Feb 2026 Sale & Mortgage Oct 2023 Sale + 1 more
Flood Zone	Zone X (minimal risk)
APN	`1571-30-3-07-027`

Property Details

APN / Parcel Number

Primary APN	`1571-30-3-07-027`
Alternative APNs	`0157130307027` `R0113326`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Plumbing Fixtures	9 Plumbing Fixtures
Total Rooms	7 Rooms
Stories	2 Stories
Building Area	1,634 sqft Living Area
Gross Area	2,686 sqft
Basement Area	432 sqft
Interior Walls	Wallboard/Drywall
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1978
Effective Year Built	Effective 2025
Architectural Style	Split Level
Exterior Material	Aluminum/Vinyl
Construction Type	Frame
Roof Type	Gable
Roof Material	Wood Shingle
Lot Area	8,000 sqft (0.184 acres)
Lot Dimensions	100 ft deep x 80 ft wide
View / Lot	Open Space
Garage Type	Attached
Garage Area	480 sqft
Parking Spaces	2 Parking Spaces
Porch	Covered Slab
Porch Area	140 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0113326
Street Address	4433 E 129TH AVE
City	THORNTON
State	CO
Zip	80241-2247
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	SUB:EAST GLENN SUBD 2ND FILING BLK:6 LOT:1
Legal Range	67W
Legal Township	01S
Legal Section	30
Legal Quarter	3
Legal Subdivision	EAST GLENN SUBD 2ND FILING
Legal Block	6
Legal Lot Number	1
Jurisdiction	ADAMS CO
Township / Civil Division	WEST ADAMS
Census Block Group	2
Census Block	2012
Census Tract	8524

Owner

Source: Adams County records, as of April 6, 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	4433 E 129TH AVE, THORNTON, CO 80241-2247
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Date	Document
Feb 26, 2026	Special Warranty Deed, Transfer · Conventional Mortgage GUILD MORTGAGE CO
Oct 31, 2023	Deed of Distribution, Transfer
Oct 31, 2023	Intrafamily Transfer, Transfer

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Feb 26, 2026 · Amount on Record
Deed Sale	Feb 26, 2026 · Amount on Record
Prior Sale	May 20, 2024
Deed Document Number	202610282
Prior Transfer Date	May 7, 2024
Prior Transfer Doc	0000026730
Record Updated	Sep 20, 2026

February 2026: Special Warranty Deed, Transfer

Document Type	Special Warranty Deed
Jurisdiction	ADAMS CO
Recording Date	Feb 26, 2026
Property Address	4433 E 129TH AVE, THORNTON, CO 80241-2247
Document Number	0000010282
Instrument Date	Feb 20, 2026
Instrument	2026000010282
Transaction Type	Transfer
Record Updated	Mar 6, 2026
Title Company	FIRST AMERICAN TITLE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$56.50
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	4433 E 129TH AVE, THORNTON, CO 80241-2247

Mortgage

Document Number	0000010283
Date	Feb 26, 2026
Instrument	2026000010283

Lender

Name	GUILD MORTGAGE CO
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Mar 1, 2056

October 2023: Deed of Distribution, Transfer

Document Type	Deed of Distribution
Jurisdiction	ADAMS CO
Recording Date	Oct 31, 2023
Property Address	4433 E 129TH AVE, THORNTON, CO 80241-2247
Document Number	0000061263
Instrument Date	Oct 27, 2023
Instrument	2023000061263
Transaction Type	Transfer
Record Updated	Nov 7, 2023

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4433 E 129TH AVE, THORNTON, CO 80241-2247

October 2023: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	ADAMS CO
Recording Date	Oct 31, 2023
Property Address	4433 E 129TH AVE, THORNTON, CO 80241-2247
Document Number	0000061260
Instrument Date	Oct 27, 2023
Instrument	2023000061260
Transaction Type	Transfer
Record Updated	Nov 7, 2023

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Tenants in Common
Address	4433 E 129TH AVE, THORNTON, CO 80241-2247

Tax Assessment & Valuation

Source: Adams County assessment roll, as of January 21, 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

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$1,189.00 (-60.23%)	$30,530 (-6.38%) Land $6,800 Building $23,730	$449,000 (-6.85%) Land $100,000 Building $349,000
2024	$2,990.00 (-15.96%)
2023	$3,558.00 (+3.97%)	$32,610 (+4.96%) Land $6,160 Building $26,450	$482,000 (+7.79%) Land $91,000 Building $391,000
2022	$3,422.00	$31,070 Land $12,640 Building $18,430	$447,169 Land $182,000 Building $265,169

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 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 5 (25% premium discount)
Nearby Flood Policies	1 in force

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; 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 831 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
CenturyLink DSL · Fiber in parts of the area	140 / 20

May also be available: Verizon.

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