Boulder County property record for 446 Riverside Dr, Lyons, CO 80540 · Last verified June 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 2 Beds |
| Bathrooms | 1.75 Baths |
| Year Built | Built 1985 |
| Square Footage | 1,070 sqft Living Area |
| Lot Size | 14,827 sqft (0.34 acres) |
| Garage | Detached, 432 sqft |
| Last Sale | $300,000 (2016) |
| Tax Bill | $2,362.00 (2025) |
| Primary APN | 1199-34-4-15-005 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1.75 Baths |
| Partial Baths | 1 Partial Baths |
| Total Rooms | 3 Rooms |
| Building Area | 1,070 sqft Living Area |
| Gross Area | 1,594 sqft Gross Area |
| 1st Floor | 828 sqft 1st Floor |
| Upper Floors | 242 sqft Upper Floors |
| Basement Area | 324 sqft Basement |
| Stories | 2 Stories |
| Interior Structure | Paneling Interior Structure |
| Year Built | Built 1930 |
|---|---|
| Effective Year Built | Effective 1985 |
| Architectural Style | A-Frame Style |
| Exterior Material | Logs Exterior |
| Construction Type | Frame Construction |
| Roof Material | Asphalt Roof |
| Lot Area | 14,827 sqft (0.34 acres) |
| Parking Spaces | 2 Parking Spaces |
| Garage Type | Detached Garage |
| Garage Area | 432 sqft Garage |
| Deck Area | 128 sqft Deck |
| Porch | Enclosed Porch |
| Porch Area | 324 sqft Porch |
| Heating System | Forced Air with Air Conditioning Heating |
|---|
| Account Number | R0053925 |
|---|---|
| Street Address | 446 RIVERSIDE DR |
| City | LYONS |
| State | CO |
| Zip | 80540-8963 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | LOT 7 LESS HIWAY & TRACT 40 FT E & W 109 FT N & S IN SW COR OF LOT 6 BLK 5 RIVERSIDE 3 |
| Legal Range | 72 |
| Legal Township | 3N |
| Legal Section | 34 |
| Legal Subdivision | RIVERSIDE - MT |
| Legal Tract | 40 |
| Legal Block | 5 |
| Legal Lot Number | 7 |
| Jurisdiction | BOULDER CO |
| Minor Civil Division | UPPER ST. VRAIN |
| Census Blockgroup | 1 |
| Census Block | 1044 |
| Census Tract | 13602 |
Source: Boulder County records · APN 1199-34-4-15-005
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 | Individual Owner on File |
|---|---|
| Mailing Address | 4440 HEATHERHILL CIR, LONGMONT, CO 80503-4184 |
| Owner Type | Owner is a Company |
| Vesting | Owner is a Trust, Living Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Known Transactions |
|
| Deed Doc Number | 20163525934 |
| Last Transfer Date | Aug 03, 2016 |
| Transfer Doc | 0003534593 |
| 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 |
| Unified School District | St. Vrain Valley School District RE 1J (PK - 12) |
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 |
|---|---|---|---|
| 2026 | $26,187 (+8.8%) Land $2,652 Building $23,535 | $385,100 (-) Land $39,000 Building $346,100 | |
| 2025 | $2,362.00 (+18.75%) | $24,069 (-8.92%) Land $2,438 Building $21,631 | $385,100 (-2.36%) Land $39,000 Building $346,100 |
| 2023 | $1,989.00 (+2.1%) | $26,425 (+24.86%) Land $2,097 Building $24,328 | $394,400 (+29.52%) Land $31,300 Building $363,100 |
| 2022 | $1,948.00 | $21,163 Land $2,120 Building $19,043 | $304,500 Land $30,500 Building $274,000 |
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