3561 E 99th Ln, Thornton (Denver), CO 80229 Property Records

Adams County property record for 3561 E 99th Ln, Thornton, CO 80229 · Last verified February 2026

Property Highlights

Property Type	Residential > Single Family > Home
Bedrooms	3 Beds
Bathrooms	2 Baths
Year Built	Built 1985
Square Footage	1,511 sqft Living Area
Lot Size	9,583 sqft (0.219 acres)
Occupancy	Owner Occupied
Last Sale	$142,950 (1998)
Tax Bill	$988.00 (2025)

Owner

Source: Adams County records · APN R0040233

Assessment roll updated August 25, 2025 · Last verified February 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Owner Name on File
Mailing Address	3561 E 99TH LN, THORNTON, CO 80229-2813
Occupancy	Owner Occupied

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	May 11, 1998 · Amount on Record
Deed Sale	May 11, 1998 · Amount on Record
Deed Doc Number	00396005
Deed Book / Page	5328 / 600
Record Refreshed	Jun 08, 2026

Tax Assessment & Valuation

Source: Adams County records · Assessment roll updated August 25, 2025 · Last verified February 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

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.

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$988.00 (-71.99%)	$23,320 (-34.71%) Land $4,440 Building $18,880	$473,000 (-10.42%) Land $90,000 Building $383,000
2023	$3,527.00 (+10.22%)	$35,720 (+11.24%) Land $5,750 Building $29,970	$528,000 (+14.31%) Land $85,000 Building $443,000
2022	$3,200.00	$32,110 Land $11,820 Building $20,290	$461,917 Land $170,000 Building $291,917

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Adams County (08001C), updated October 2, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified: October 2026

Flood

FEMA Flood Zone	Zone X
Flood Hazard	Minimal
500-Year Floodplain	No
Special Flood Hazard Area	No

Wildfire

Wildfire Risk	Low above 1% of the US · less than 1% of Colorado
Wildfire Likelihood	Less than 1 in 10,000 per year
Exposure	Direct burnable vegetation at the parcel

Values are read at the parcel center point; lenders make the official flood determination.

Property Details

APN / Parcel Number

Primary APN	`R0040233`
Alternative APNs	`0171913401024` `171913401024`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Plumbing Fixtures	9 Plumbing Fixtures
Total Rooms	6 Rooms
Building Area	1,511 sqft Living Area
1st Floor	1,511 sqft 1st Floor
Basement Area	1,216 sqft Basement
Stories	1 Stories
Interior Structure	Wallboard/Drywall Interior Structure
Fireplace	Fireplace
Fireplaces	1 Fireplaces

Exterior

Year Built	Built 1985
Architectural Style	Ranch Style
Exterior Material	Aluminum/Vinyl Exterior
Construction Type	Frame Construction
Roof Construction	Gable Roof Construction
Roof Material	Composition Shingle Roof
Lot Area	9,583 sqft (0.219 acres)
Depth X Width	135 ft x 70 ft Depth x Width
Parking Spaces	2 Parking Spaces
Garage Type	Attached Garage
Garage Area	456 sqft Garage

Utilities and HVAC

Cooling System	Central Cooling
Heating System	Forced Air Heating

Location & Zoning

Account Number	R0040233
Old Parcel Number	171913401024
Street Address	3561 E 99TH LN
City	THORNTON
State	CO
Zip	80229-2813
Property Usage	Residential Property Usage
Type	Residential > Single Family > Home
Legal Description	SUB:NORTH HILLS FILING NUMBER ONE SUBD BLK:2 LOT:12
Legal Range	68W
Legal Township	02S
Legal Section	13
Legal Quarter	SW
Legal Subdivision	NORTH HILLS FILING NUMBER ONE SUBD
Legal Block	2
Legal Lot Number	12
Jurisdiction	ADAMS CO
Minor Civil Division	WEST ADAMS
Census Blockgroup	1
Census Block	1011
Census Tract	9207