Boulder County property record for 405 Prospect St, Lyons, CO 80540 · Last verified June 2026
| Property Type | Other > Exempt (Full or Partial) |
|---|---|
| Bedrooms | 2 Beds |
| Bathrooms | 1 Baths |
| Architecture Style | Ranch |
| Year Built | Built 1956 |
| Square Footage | 1,064 sqft Living Area |
| Lot Size | 7,658 sqft (0.176 acres) |
| Garage | Carport, 448 sqft |
| Last Sale | $220,000 (2008) |
| Primary APN | 1203-18-4-45-001 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Baths |
| Total Rooms | 5 Rooms |
| Building Area | 1,064 sqft Living Area |
| 1st Floor | 1,064 sqft 1st Floor |
| Stories | 1 Stories |
| Year Built | Built 1956 |
|---|---|
| Effective Year Built | Effective 1956 |
| Architectural Style | Ranch Style |
| Exterior Material | Asbestos Exterior |
| Construction Type | Frame Construction |
| Lot Area | 7,658 sqft (0.176 acres) |
| Parking Spaces | 2 Parking Spaces |
| Garage Type | Carport Garage |
| Garage Area | 448 sqft Garage |
| Carport | Carport |
| Carport Area | 448 sqft Carport |
| Porch | Porch |
| Porch Area | 64 sqft Porch |
| Heating System | Hot Water Heating |
|---|
| Account Number | R0050418 |
|---|---|
| Street Address | 405 PROSPECT ST |
| City | LYONS |
| State | CO |
| Zip | 80540-5068 |
| Property Usage | Other Property Usage |
| Type | Other > Exempt (Full or Partial) |
| Legal Description | LOT 1 HARMANS PLACE SPLIT SEE ID 98566 |
| Legal Range | 70 |
| Legal Township | 3N |
| Legal Section | 18 |
| Legal Subdivision | HARMANS PLACE - LY |
| Legal Block | 3 |
| Legal Lot Number | 1 |
| Jurisdiction | BOULDER CO |
| Minor Civil Division | LONGMONT |
| Census Blockgroup | 3 |
| Census Block | 3027 |
| Census Tract | 13601 |
Source: Boulder County records · APN 1203-18-4-45-001
Assessment roll updated June 15, 2026 · Last verified June 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | PO BOX 49, LYONS, CO 80540-0049 |
| Owner Type | Owner is a Company |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Dec 12, 2008 · Amount on Record |
| Deed Sale | Dec 12, 2008 · Amount on Record |
| Prior Sale | Sep 01, 1988 · Amount on Record |
| Deed Doc Number | 20082968816 |
| Record Refreshed | Sep 20, 2026 |
Source: Boulder County records · Assessment roll updated June 15, 2026 · Last verified June 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 is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $17,061 (+8.8%) Land $17,061 | $250,900 (-) Land $250,900 | |
| 2025 | Additional exemption filed | $15,681 (+270.88%) Land $15,681 | $250,900 (+297.62%) Land $250,900 |
| 2023 | Additional exemption filed | $4,228 Land $4,228 | $63,100 Land $63,100 |
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