Boulder County property record for 441 Prospect St, Lyons, CO 80540 · Last verified July 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 2 Beds |
| Bathrooms | 1 Baths |
| Year Built | Built 1980 |
| Square Footage | 960 sqft Living Area |
| Lot Size | 8,943 sqft (0.205 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $22,000 (1976) |
| Tax Bill | $4,721.00 (2025) |
| Primary APN | 1203-18-4-33-005 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Baths |
| Total Rooms | 6 Rooms |
| Building Area | 960 sqft Living Area |
| 1st Floor | 960 sqft 1st Floor |
| Stories | 1 Stories |
| Interior Structure | Unfinished Interior Structure |
| Year Built | Built 1906 |
|---|---|
| Effective Year Built | Effective 1980 |
| Architectural Style | Ranch Style |
| Exterior Material | Asbestos Exterior |
| Construction Type | Frame Construction |
| Lot Area | 8,943 sqft (0.205 acres) |
| Parking Spaces | 1 Parking Spaces |
| Garage Type | Carport Garage |
| Garage Area | 200 sqft Garage |
| Carport | Carport |
| Carport Area | 200 sqft Carport |
| Total Buildings | 2 Total Buildings |
|---|---|
| Shed | 1 Shed |
| Porch | Porch |
| Porch Area | 120 sqft Porch |
| Heating System | Forced Air with Air Conditioning Heating |
|---|
| Account Number | R0050343 |
|---|---|
| Street Address | 441 PROSPECT ST |
| City | LYONS |
| State | CO |
| Zip | 80540-5068 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | W 15 FT OF LOT 5 & LOT 6 BLK 35 LYONS |
| Legal Range | 70 |
| Legal Township | 3N |
| Legal Section | 18 |
| Legal Subdivision | LYONS - LY |
| Legal Block | 35 |
| Legal Lot Number | 5 |
| Jurisdiction | BOULDER CO |
| Minor Civil Division | LONGMONT |
| Census Blockgroup | 3 |
| Census Block | 3027 |
| Census Tract | 13601 |
Source: Boulder County records · APN 1203-18-4-33-005
Assessment roll updated June 15, 2026 · Last verified July 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 File |
|---|---|
| Mailing Address | 441 PROSPECT ST, LYONS, CO 80540-5068 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Date | Document |
|---|---|
| May 18, 2026 | Affidavit, Transfer |
| May 19, 2026 | Quit Claim Deed, Transfer NONE LISTED ON DOCUMENT |
| Deed Names | Verified Name on Deed |
|---|---|
| Known Transactions |
|
| Deed Doc Number | 1976184552 |
| Last Transfer Date | May 01, 2026 |
| Transfer Doc | 0004132467 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Affidavit |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | May 18, 2026 |
| Property Address | 441 PROSPECT ST, LYONS, CO 80540-5068 |
| Document Number | 0004132328 |
| Instrument Date | May 15, 2026 |
| Instrument | 20264132328 |
| Transaction Type | Transfer |
| Record Updated | Jul 12, 2026 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | May 19, 2026 |
| Property Address | 441 PROSPECT ST, LYONS, CO 80540-5068 |
| Document Number | 0004132467 |
| Instrument Date | May 01, 2026 |
| Instrument | 20264132467 |
| Transaction Type | Transfer |
| Record Updated | Jul 12, 2026 |
| Title Company | NONE LISTED ON DOCUMENT |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Trust |
| Address | 99 HICKORY AVE, BOULDER, CO 80303-2767 |
Source: Boulder County records · Assessment roll updated June 15, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Municipality | Lyons Town |
| Unified School District | St. Vrain Valley School District RE 1J (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 |
|---|---|---|---|
| 2026 | $37,754 (+8.8%) Land $4,998 Building $32,756 | $555,200 (-) Land $73,500 Building $481,700 | |
| 2025 | $4,721.00 (+14.84%) | $34,701 (-10.41%) Land $4,594 Building $30,107 | $555,200 (-3.96%) Land $73,500 Building $481,700 |
| 2023 | $4,111.00 (+13.59%) | $38,733 (+31.94%) Land $4,268 Building $34,465 | $578,100 (+36.86%) Land $63,700 Building $514,400 |
| 2022 | $3,619.00 | $29,357 Land $3,906 Building $25,451 | $422,400 Land $56,200 Building $366,200 |
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