4505 E 121st Ct, Thornton, CO 80241 Property Records

Adams County property record for 4505 E 121st Ct, Thornton, CO 80241

Property Summary

Property Type	Single Family Home
Details	4 bd · 4 ba · 1,954 sqft · built 1979
Lot Size	0.28 acres (12,197 sqft)
Owner	Company Name on Record
Tax Bill	$1,404 (2025)
Deeds & Mortgages	Aug 2021 Mortgage Apr 2022 Line of Credit + 3 more
Flood Zone	Zone X (minimal risk)
APN	`R0011689`

Property Details

APN / Parcel Number

Primary APN	`R0011689`
Alternative APNs	`0157131319002` `157131319002`

Interior

Bedrooms	4 Beds
Full Baths	4 Baths
Plumbing Fixtures	14 Plumbing Fixtures
Total Rooms	8 Rooms
Stories	2 Stories
Building Area	1,954 sqft Living Area
1st Floor Area	1,046 sqft
2nd Floor Area	908 sqft
Basement Area	806 sqft
Finished Basement	800 sqft
Interior Walls	Wallboard/Drywall
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1979
Architectural Style	Other
Exterior Material	Aluminum/Vinyl
Construction Type	Frame
Roof Type	Gable
Roof Material	Composition Shingle
Lot Area	12,197 sqft (0.28 acres)
Lot Dimensions	129 ft deep x 95 ft wide
Garage Type	Attached
Garage Area	420 sqft
Parking Spaces	2 Parking Spaces
Porch	Porch
Porch Area	217 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air

Location & Zoning

Account Number	R0011689
Old Parcel Number	157131319002
Street Address	4505 E 121ST CT
City	THORNTON
State	CO
Zip	80241-3648
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	SUB:NORTHAVEN BLK:4 LOT:6
Legal Range	67W
Legal Township	01S
Legal Section	31
Legal Quarter	NE
Legal Subdivision	NORTHAVEN
Legal Block	4
Legal Lot Number	6
Jurisdiction	ADAMS CO
Township / Civil Division	WEST ADAMS
Census Block Group	2
Census Block	2005
Census Tract	8547

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	Company Name on Record
Mailing Address	4505 E 121ST CT, THORNTON, CO 80241-3648
Occupancy	Owner Occupied
Owner Type	Company

Deeds, Mortgages & Sale History

Date	Document
Aug 26, 2021	Deed of Trust, Mortgage · Conventional Mortgage LOANDEPOT.COM LLC
Apr 27, 2022	Deed, Transfer · Line of Credit UNISON AGREEMENT CORP
Oct 30, 2019	Quit Claim Deed, Transfer · Conventional with PMI LOANDEPOT.COM LLC
Sep 14, 2017	Deed of Trust, Mortgage QUICKEN LNS
Apr 26, 2017	Warranty Deed, Transfer · FHA Mortgage QUICKEN LNS

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Apr 27, 2022
Deed Sale	Apr 27, 2022
Prior Sale	Oct 30, 2019
Deed Document Number	2022000037663
Record Updated	Jun 8, 2026

August 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ADAMS CO
Property Address	4505 E 121ST CT, THORNTON, CO 80241-3648
Transaction Type	Mortgage
Record Updated	Jan 4, 2023

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4505 E 121ST CT, DENVER, CO 80241-3648

Mortgage

Document Number	0000101853
Date	Aug 26, 2021
Instrument	2021000101853

Lender

Name	LOANDEPOT.COM LLC
Type	Mortgage Company
Address	FOOTHILL RANCH, CA 92610

Agreement

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

April 2022: Deed, Transfer

Document Type	Deed
Jurisdiction	ADAMS CO
Recording Date	Apr 27, 2022
Property Address	4505 E 121ST CT, THORNTON, CO 80241-3648
Document Number	0000037663
Instrument Date	Apr 13, 2022
Instrument	2022000037663
Transaction Type	Transfer
Record Updated	Jan 4, 2023

Transaction

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

Transferred From (Grantor/Seller)

Name	Verified Name
Address	4505 E 121ST CT, THORNTON, CO 80241-3648

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	650 CALIFORNIA ST FL 1800, 1800, SAN FRANCISCO, CA 94108-2722
Investor	Possibly a Property Investor

Mortgage

Document Number	0000037664
Date	Apr 27, 2022
Instrument	2022000037664

Lender

Name	UNISON AGREEMENT CORP
Type	Non-Lending Institution
Address	SAN FRANCISCO, CA 94108

Agreement

Type	Line of Credit
Amount	Amount Recorded

October 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ADAMS CO
Recording Date	Oct 30, 2019
Property Address	4505 E 121ST CT, THORNTON, CO 80241-3648
Document Number	0000093405
Instrument Date	Oct 12, 2019
Instrument	93405
Transaction Type	Transfer
Record Updated	Nov 8, 2019
Title Company	CLOSING USA LLC

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	4505 E 121ST CT THORNTON CO 802413648, THORNTON, CO 80241-3648

Mortgage

Document Number	93406
Date	Oct 30, 2019
Instrument	93406

Lender

Name	LOANDEPOT.COM LLC
Type	Funding / Finance Company
Address	FOOTHILL RANCH, CA 92610

Agreement

Type	Conventional with PMI
Amount	Amount Recorded
Term	360 Months
Due	Oct 29, 2049

September 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ADAMS CO
Property Address	4505 E 121ST CT, THORNTON, CO 80241-3648
Document Number	0000082816
Instrument Date	Sep 14, 2017
Transaction Type	Mortgage
Record Updated	Sep 29, 2017
Title Company	OTHER

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4505 E 121ST CT THORNTON CO 802413648, THORNTON, CO 80241-3648

Mortgage

Document Number	0000082816
Date	Sep 22, 2017
Instrument	82816

Lender

Name	QUICKEN LNS
Type	Funding / Finance Company
Address	DETROIT, MI 48226-1906

Agreement

Amount	Amount Recorded
Term	360 Months
Due	Sep 21, 2047

April 2017: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	ADAMS CO
Recording Date	Apr 26, 2017
Property Address	4505 E 121ST CT, THORNTON, CO 80241-3648
Document Number	0000036303
Instrument Date	Apr 26, 2017
Instrument	36303
Transaction Type	Transfer
Record Updated	May 3, 2017
Title Company	PRESTIGE TITLE AND ESCROW, PRESTIGE TITLE & ESCROW

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$40.00
Amount Accuracy	Confirmed
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4505 E 121ST CT THORNTON CO 802413648, THORNTON, CO 80241-3648

Mortgage

Document Number	36304
Date	Apr 26, 2017
Instrument	36304

Lender

Name	QUICKEN LNS
Type	Funding / Finance Company
Address	DETROIT, MI 48226-1906

Agreement

Type	FHA Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Apr 25, 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	$1,404.00 (-67.86%)	$33,130 (-17.28%) Land $6,000 Building $27,130	$530,000 (-10.47%) Land $96,000 Building $434,000
2023	$4,369.00 (+14.88%)	$40,050 (+15.99%) Land $5,820 Building $34,230	$592,000 (+19.17%) Land $86,000 Building $506,000
2022	$3,803.00	$34,530 Land $11,960 Building $22,570	$496,783 Land $172,000 Building $324,783

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

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 820 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
CenturyLink Fiber · DSL in parts of the area	8,000 / 8,000
Xfinity Cable	2,000 / 250
Rise Broadband Fixed Wireless	300 / 60
Verizon Fixed Wireless	300 / 20

May also be available: AT&T, Intrepid Fiber Networks, T-Mobile, Ting.

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