12840 Rosemary St, Thornton (Brighton), CO 80602 Property Records

Adams County property record for 12840 Rosemary St, Thornton, CO 80602

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 2,306 sqft · built 2009
Lot Size	0.16 acres (6,970 sqft)
Owner	Individual Name on Record
Last Sale	$673,000 (Jun 2024)
Tax Bill	$1,579 (2025)
Deeds & Mortgages	Mar 2024 Line of Credit Apr 2021 Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`R0146961`

Property Details

APN / Parcel Number

Primary APN	`R0146961`
Alternative APNs	`0157128305015` `157128305015`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Plumbing Fixtures	13 Plumbing Fixtures
Total Rooms	8 Rooms
Stories	2 Stories
Building Area	2,306 sqft Living Area
1st Floor Area	1,140 sqft
2nd Floor Area	1,166 sqft
Basement Area	660 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 2009
Architectural Style	Other
Exterior Material	Aluminum/Vinyl
Construction Type	Frame
Roof Type	Gable
Roof Material	Composition Shingle
Lot Area	6,970 sqft (0.16 acres)
Garage Type	Attached
Garage Area	484 sqft
Parking Spaces	2 Parking Spaces
Porch	Porch

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air

Location & Zoning

Account Number	R0146961
Old Parcel Number	157128305015
Street Address	12840 ROSEMARY ST
City	THORNTON
State	CO
Zip	80602-8409
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	SUB:THE VILLAGES AT RIVERDALE FILING NO 1 BLK:5 LOT:15
Legal Range	67W
Legal Township	01S
Legal Section	28
Legal Quarter	SW
Legal Subdivision	THE VILLAGES AT RIVERDALE
Legal Block	5
Legal Lot Number	15
Jurisdiction	ADAMS CO
Township / Civil Division	BRIGHTON
Census Block Group	5
Census Block	5036
Census Tract	8540

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	Individual Name on Record
Co-owner	Co-owner on Record
Mailing Address	12840 ROSEMARY ST, THORNTON, CO 80602-8409
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Mar 27, 2024	Deed of Trust, Mortgage · Line of Credit BELLCO CU
Apr 30, 2021	Deed of Trust, Mortgage · Conventional Mortgage UNITED WHOLESALE MORTGAGE
Jun 27, 2024	Special Warranty Deed, Transfer · Conventional Mortgage UNITED WHOLESALE MORTGAGE
Oct 13, 2017	Quit Claim Deed, Transfer Quitclaim

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jun 27, 2024 · Amount on Record
Deed Sale	Jun 27, 2024 · Amount on Record
Prior Sale	Oct 13, 2017
Deed Document Number	2024000034755
Record Updated	Jun 8, 2026

March 2024: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ADAMS CO
Property Address	12840 ROSEMARY ST, THORNTON, CO 80602-8409
Transaction Type	Mortgage
Record Updated	Feb 10, 2026

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	12840 ROSEMARY ST, THORNTON, CO 80602-8409

Mortgage

Document Number	0000015810
Date	Mar 27, 2024
Instrument	2024000015810

Lender

Name	BELLCO CU
Type	Credit Union
Address	7600 E ORCHARD RD STE 400N, GREENWOOD VILLAGE, CO 80111

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	240 Months
Due	Mar 28, 2044

Interest

Change Frequency	Monthly

April 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ADAMS CO
Property Address	12840 ROSEMARY ST, THORNTON, CO 80602-8409
Transaction Type	Mortgage
Record Updated	Feb 10, 2026
Title Company	CAPITAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000053376
Date	Apr 30, 2021
Instrument	2021000053376

Lender

Name	UNITED WHOLESALE MORTGAGE
Type	Mortgage Company
Address	PONTIAC, MI 48341

Agreement

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

June 2024: Special Warranty Deed, Transfer

Document Type	Special Warranty Deed
Jurisdiction	ADAMS CO
Recording Date	Jun 27, 2024
Property Address	12840 ROSEMARY ST, THORNTON, CO 80602-8409
Document Number	0000034755
Instrument Date	Jun 26, 2024
Instrument	2024000034755
Transaction Type	Transfer
Record Updated	Feb 10, 2026
Title Company	AVALANCHE TITLE AND ESCROW LLC, AVALANCHE TITLE & ESCROW INC

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$67.30
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	12840 ROSEMARY ST, THORNTON, CO 80602-8409

Mortgage

Document Number	0000034756
Date	Jun 27, 2024
Instrument	2024000034756

Lender

Name	UNITED WHOLESALE MORTGAGE
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Jul 1, 2054

October 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ADAMS CO
Recording Date	Oct 13, 2017
Property Address	12840 ROSEMARY ST, THORNTON, CO 80602-8409
Document Number	0000090124
Instrument Date	Sep 22, 2017
Instrument	2017000090124
Transaction Type	Transfer
Record Updated	Jan 27, 2022

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name
Address	00000

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	12840 ROSEMARY ST, THORNTON, CO 80602-8409
Investor	Possibly a Property Investor

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	School District 27J (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$1,579.00 (-61.25%)	$37,250 (-11.18%) Land $7,190 Building $30,060	$596,000 (-3.87%) Land $115,000 Building $481,000
2023	$4,075.00 (+12.91%)	$41,940 (+13.97%) Land $7,100 Building $34,840	$620,000 (+17.11%) Land $105,000 Building $515,000
2022	$3,609.00	$36,800 Land $14,600 Building $22,200	$529,431 Land $210,000 Building $319,431

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 532 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	140 / 20

May also be available: T-Mobile, Verizon.

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