Adams County property record for 3521 E 99th Ln, Thornton, CO 80229 · Last verified April 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 3 Beds |
| Bathrooms | 1.5 Baths |
| Year Built | Built 1984 |
| Square Footage | 1,476 sqft Living Area |
| Lot Size | 8,927 sqft (0.205 acres) |
| Garage | Attached, 399 sqft |
| Occupancy | Owner Occupied |
| Tax Bill | $2,591.00 (2024) |
| Primary APN | 1719-13-4-01-022 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Partial Baths | 1 Partial Baths |
| Plumbing Fixtures | 8 Plumbing Fixtures |
| Total Rooms | 6 Rooms |
| Building Area | 1,476 sqft Living Area |
| Gross Area | 1,875 sqft Gross Area |
| 1st Floor | 828 sqft 1st Floor |
| 2nd Floor | 648 sqft 2nd Floor |
| Stories | 2 Stories |
| Interior Structure | Wallboard/Drywall Interior Structure |
| Fireplace | Fireplace |
| Fireplaces | 1 Fireplaces |
| Year Built | Built 1984 |
|---|---|
| Effective Year Built | Effective 1984 |
| Exterior Material | Aluminum/Vinyl Exterior |
| Construction Type | Frame Construction |
| Roof Construction | Gable Roof Construction |
| Roof Material | Composition Shingle Roof |
| Lot Area | 8,927 sqft (0.205 acres) |
| Depth X Width | 113 ft x 79 ft Depth x Width |
| Parking Spaces | 1 Parking Spaces |
| Garage Type | Attached Garage |
| Garage Area | 399 sqft Garage |
| Cooling System | Central Cooling |
|---|---|
| Heating System | Forced Air with Air Conditioning Heating |
| Account Number | R0040231 |
|---|---|
| Street Address | 3521 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:10 |
| Legal Range | 68W |
| Legal Township | 02S |
| Legal Section | 13 |
| Legal Quarter | 4 |
| Legal Subdivision | NORTH HILLS FILING NUMBER ONE SUBD |
| Legal Block | 2 |
| Legal Lot Number | 10 |
| Jurisdiction | ADAMS CO |
| Minor Civil Division | WEST ADAMS |
| Census Blockgroup | 1 |
| Census Block | 1011 |
| Census Tract | 9207 |
Source: Adams County records · APN 1719-13-4-01-022
Assessment roll updated January 21, 2026 · Last verified April 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individuals Owners |
|---|---|
| Mailing Address | 3521 E 99TH LN, THORNTON, CO 80229-2813 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Date | Document |
|---|---|
| Nov 25, 2020 | Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LOANS LLC |
| Feb 27, 2020 | Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LNS |
| May 03, 2019 | Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LNS |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Known Transactions |
|
| Deed Doc Number | 2001788519 |
| Prior Transfer Date | Apr 10, 2001 |
| Prior Transfer Doc | 000C788519 |
| Record Refreshed | Jun 08, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ADAMS CO |
| Property Address | 3521 E 99TH LN, THORNTON, CO 80229-2813 |
| Transaction Type | Mortgage |
| Record Updated | Feb 05, 2021 |
| Title Company | TITLE SOURCE INC |
| Name | Verified Name |
|---|
| Document Number | 0000123026 |
|---|---|
| Date | Nov 25, 2020 |
| Instrument | 2020000123026 |
| Name | QUICKEN LOANS LLC |
|---|---|
| Type | Mortgage Company |
| Address | DETROIT, MI 48226 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Dec 01, 2050 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ADAMS CO |
| Property Address | 3521 E 99TH LN, THORNTON, CO 80229-2813 |
| Document Number | 0000020377 |
| Instrument Date | Feb 27, 2020 |
| Transaction Type | Mortgage |
| Record Updated | Mar 11, 2020 |
| Title Company | OTHER |
| Name | Verified Name |
|---|---|
| Relationship | Husband And Wife |
| Address | 3521 E 99TH LN THORNTON CO 802292813, THORNTON, CO 80229-2813 |
| Document Number | 0000020377 |
|---|---|
| Date | Mar 03, 2020 |
| Instrument | 20377 |
| Name | QUICKEN LNS |
|---|---|
| Type | Funding / Finance Company |
| Address | DETROIT, MI 48226-1906 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 324 Months |
| Due | Mar 02, 2047 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ADAMS CO |
| Property Address | 3521 E 99TH LN, THORNTON, CO 80229-2813 |
| Document Number | 0000034640 |
| Instrument Date | May 03, 2019 |
| Transaction Type | Mortgage |
| Record Updated | May 21, 2019 |
| Title Company | OTHER |
| Name | Verified Name |
|---|---|
| Relationship | Husband And Wife |
| Address | 3521 E 99TH LN THORNTON CO 802292813, THORNTON, CO 80229-2813 |
| Document Number | 0000034640 |
|---|---|
| Date | May 08, 2019 |
| Instrument | 34640 |
| Name | QUICKEN LNS |
|---|---|
| Type | Funding / Finance Company |
| Address | DETROIT, MI 48226-1906 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | May 07, 2049 |
Source: Adams County records · Assessment roll updated January 21, 2026 · Last verified April 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Adams County |
| Municipality | Thornton City |
| Unified School District | Mapleton School District 1 (PK - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $1,097.00 (-57.66%) | $28,150 (-9.92%) Land $6,120 Building $22,030 | $414,000 (-10.39%) Land $90,000 Building $324,000 |
| 2024 | $2,591.00 (-16.04%) | ||
| 2023 | $3,086.00 (+2.52%) | $31,250 (+3.48%) Land $5,750 Building $25,500 | $462,000 (+6.35%) Land $85,000 Building $377,000 |
| 2022 | $3,010.00 | $30,200 Land $11,820 Building $18,380 | $434,421 Land $170,000 Building $264,421 |
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