3621 E 99th Ln, Thornton (Denver), CO 80229 Property Records

Adams County property record for 3621 E 99th Ln, Thornton, CO 80229

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,918 sqft · built 1986
Lot Size	0.224 acres (9,750 sqft)
Owner	Individual Name on Record
Last Sale	$385,000 (Jan 2021)
Tax Bill	$1,222 (2025)
Deeds & Mortgages	Feb 2020 Line of Credit Jan 2021 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`1719-13-4-07-001`

Property Details

APN / Parcel Number

Primary APN	`1719-13-4-07-001`
Alternative APNs	`0171913407001` `R0040352`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Plumbing Fixtures	8 Plumbing Fixtures
Total Rooms	5 Rooms
Stories	1 Story
Building Area	1,918 sqft Living Area
Gross Area	2,457 sqft
1st Floor Area	1,123 sqft
Basement Area	884 sqft
Finished Basement	795 sqft
Unfinished Basement	89 sqft
Interior Walls	Wallboard/Drywall
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1986
Effective Year Built	Effective 1986
Architectural Style	Ranch
Exterior Material	Aluminum/Vinyl
Construction Type	Frame
Roof Type	Gable
Roof Material	Composition Shingle
Lot Area	9,750 sqft (0.224 acres)
Lot Dimensions	130 ft deep x 75 ft wide
Garage Type	Attached
Garage Area	399 sqft
Parking Spaces	1 Parking Space

Exterior Amenities

Porch	Covered Slab
Porch Area	87 sqft
Shed	1 Shed
Shed Area	192 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0040352
Street Address	3621 E 99TH LN
City	THORNTON
State	CO
Zip	80229-2842
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	SUB:NORTH HILLS FILING NUMBER ONE SUBD BLK:3 LOT:1
Legal Range	68W
Legal Township	02S
Legal Section	13
Legal Quarter	4
Legal Subdivision	NORTH HILLS FILING NUMBER ONE SUBD
Legal Block	3
Legal Lot Number	1
Jurisdiction	ADAMS CO
Township / Civil Division	WEST ADAMS
Census Block Group	1
Census Block	1002
Census Tract	9207

Owner

Source: Adams County records, as of January 21, 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
Mailing Address	3621 E 99TH LN, THORNTON, CO 80229-2842
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Individual(s)

Deeds, Mortgages & Sale History

Date	Document
Feb 13, 2020	Deed of Trust, Mortgage · Line of Credit WELLS FARGO BANK NA
Jan 29, 2021	Special Warranty Deed, Transfer · Conventional Mortgage SOUTHWEST FUNDING LP

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jan 29, 2021 · Amount on Record
Deed Sale	Jan 29, 2021 · Amount on Record
Deed Document Number	202111121
Record Updated	Sep 20, 2026

February 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ADAMS CO
Property Address	3621 E 99TH LN, THORNTON, CO 80229-2842
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	TITLE365 OMAHA

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000014070
Date	Feb 13, 2020
Instrument	2020000014070

Lender

Name	WELLS FARGO BANK NA
Type	Bank
Address	SIOUX FALLS, SD 57104

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	360 Months
Due	Feb 21, 2050

January 2021: Special Warranty Deed, Transfer

Document Type	Special Warranty Deed
Jurisdiction	ADAMS CO
Recording Date	Jan 29, 2021
Property Address	3621 E 99TH LN, THORNTON, CO 80229-2842
Document Number	0000011121
Instrument Date	Jan 22, 2021
Instrument	2021000011121
Transaction Type	Transfer
Record Updated	Jan 27, 2022
Title Company	LAND TITLE GUARANTEE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$38.50
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	3621 E 99TH LN, 3621, THORNTON, CO 80229-2842

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3621 E 99TH LN, THORNTON, CO 80229-2842

Mortgage

Document Number	0000011122
Date	Jan 29, 2021
Instrument	2021000011122

Lender

Name	SOUTHWEST FUNDING LP
Type	Mortgage Company

Agreement

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

Mortgage

Document Number	0000011123
Date	Jan 29, 2021
Instrument	2021000011123

Lender

Name	COLORADO HOUSING & FINANCE AUTHORITY
Type	Government Agency
Address	DENVER, CO 80202

Agreement

Type	Stand-Alone Second Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Feb 1, 2051

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	Mapleton School District 1 (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$1,222.00 (-57.54%)	$31,350 (-8.6%) Land $6,120 Building $25,230	$461,000 (-9.07%) Land $90,000 Building $371,000
2024	$2,878.00 (-15%)
2023	$3,386.00 (+9.44%)	$34,300 (+10.5%) Land $5,750 Building $28,550	$507,000 (+13.53%) Land $85,000 Building $422,000
2022	$3,094.00	$31,040 Land $11,820 Building $19,220	$446,581 Land $170,000 Building $276,581

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	Low lower than 99.1% of the US · lower than 99.6% of Colorado
Wildfire Likelihood	Under 0.01% annual chance
Exposure	Direct burnable vegetation

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

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

May also be available: Aerux Broadband.

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