3837 E 133rd Ct, Thornton, CO 80241 Property Records

Adams County property record for 3837 E 133rd Ct, Thornton, CO 80241

Property Summary

Property Type	Single Family Home
Details	4 bd · 4 ba · 2,166 sqft · built 1979
Lot Size	0.219 acres (9,583 sqft)
Owner	2 Individual Names on Record
Last Sale	$433,000 (Jul 2018)
Tax Bill	$1,545 (2025)
Deeds & Mortgages	Apr 2023 Second Mortgage Apr 2021 Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`R0015643`

Property Details

APN / Parcel Number

Primary APN	`R0015643`
Alternative APNs	`0157325111012` `157325111012`

Interior

Bedrooms	4 Beds
Full Baths	4 Baths
Plumbing Fixtures	15 Plumbing Fixtures
Total Rooms	4 Rooms
Stories	2 Stories
Building Area	2,166 sqft Living Area
1st Floor Area	1,252 sqft
2nd Floor Area	914 sqft
Basement Area	952 sqft
Finished Basement	902 sqft
Interior Walls	Wallboard/Drywall
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1979
Effective Year Built	Effective 2018
Architectural Style	Other
Exterior Material	Brick/Stone
Construction Type	Frame
Roof Type	Gable
Roof Material	Wood Shingle
Lot Area	9,583 sqft (0.219 acres)
Lot Dimensions	126 ft deep x 75 ft wide
Garage Type	Attached
Garage Area	400 sqft
Parking Spaces	2 Parking Spaces
Porch	Porch
Porch Area	332 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	HVAC

Location & Zoning

Account Number	R0015643
Old Parcel Number	157325111012
Street Address	3837 E 133RD CT
City	THORNTON
State	CO
Zip	80241-1409
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	SUB:SUMMIT GROVE BLK:8 LOT:26
Legal Range	68W
Legal Township	01S
Legal Section	25
Legal Quarter	NE
Legal Subdivision	SUMMIT GROVE
Legal Block	8
Legal Lot Number	26
Jurisdiction	ADAMS CO
Township / Civil Division	WEST ADAMS
Census Block Group	5
Census Block	5002
Census Tract	8545

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	3837 E 133RD CT, THORNTON, CO 80241-1409
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Apr 17, 2023	Deed of Trust, Mortgage · Stand-Alone Second Mortgage DISCOVER BANK
Apr 27, 2021	Deed of Trust, Mortgage · Conventional Mortgage NORTH AMERICAN SAVINGS BANK FSB
Jul 24, 2018	Warranty Deed, Transfer · Conventional with PMI CITYWIDE HM LNS CORP

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jul 24, 2018 · Amount on Record
Deed Sale	Jul 24, 2018 · Amount on Record
Prior Sale	Apr 19, 2000 · Amount on Record
Deed Document Number	2018000059491
Record Updated	Jun 8, 2026

April 2023: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ADAMS CO
Property Address	3837 E 133RD CT, THORNTON, CO 80241-1409
Transaction Type	Mortgage
Record Updated	Apr 24, 2023

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000020875
Date	Apr 17, 2023
Instrument	2023000020875

Lender

Name	DISCOVER BANK
Type	Bank
Address	GREENWOOD, DE 19950

Agreement

Type	Stand-Alone Second Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Apr 17, 2053

April 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ADAMS CO
Property Address	3837 E 133RD CT, THORNTON, CO 80241-1409
Transaction Type	Mortgage
Record Updated	May 6, 2021
Title Company	TRANSTAR NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000051326
Date	Apr 27, 2021
Instrument	2021000051326

Lender

Name	NORTH AMERICAN SAVINGS BANK FSB
Type	Bank
Address	GRANDVIEW, MO 64030

Agreement

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

July 2018: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	ADAMS CO
Recording Date	Jul 24, 2018
Property Address	3837 E 133RD CT, THORNTON, CO 80241-1409
Document Number	0000059491
Instrument Date	Jul 20, 2018
Instrument	59491
Transaction Type	Transfer
Record Updated	Aug 3, 2018
Title Company	FIRST AMERICAN TITLE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$43.30
Amount Accuracy	Confirmed
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	3837 E 133RD CT THORNTON CO 802411409, THORNTON, CO 80241-1409

Mortgage

Document Number	59492
Date	Jul 24, 2018
Instrument	59492

Lender

Name	CITYWIDE HM LNS CORP
Address	SANDY, UT 84070

Agreement

Type	Conventional with PMI
Amount	Amount Recorded
Term	360 Months
Due	Jul 23, 2048

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	$1,545.00 (-66.01%)	$36,440 (-12.55%) Land $6,880 Building $29,560	$583,000 (-5.36%) Land $110,000 Building $473,000
2023	$4,546.00 (+14.54%)	$41,670 (+15.65%) Land $6,900 Building $34,770	$616,000 (+18.84%) Land $102,000 Building $514,000
2022	$3,969.00	$36,030 Land $14,180 Building $21,850	$518,332 Land $204,000 Building $314,332

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	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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