Boulder County property record for 363 Riverside Dr, Lyons, CO 80540 · Last verified June 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 3 Beds |
| Bathrooms | 2.25 Baths |
| Year Built | Built 1980 |
| Square Footage | 1,830 sqft Living Area |
| Lot Size | 15,748 sqft (0.362 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $152,000 (1992) |
| Tax Bill | $2,840.00 (2025) |
Source: Boulder County records · APN 1199-34-4-14-002
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 | 2 Individual Names on File |
|---|---|
| Mailing Address | 363 RIVERSIDE DR, LYONS, CO 80540-8990 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Date | Document |
|---|---|
| Apr 30, 2020 | Deed of Trust, Mortgage · Conventional Mortgage COLONIAL NATIONAL MORTGAGE |
| Aug 05, 2020 | Deed of Trust, Mortgage · Conventional Mortgage COLONIAL MORTGAGE CO |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Jun 11, 1992 · Amount on Record |
| Deed Sale | Jun 11, 1992 · Amount on Record |
| Prior Sale | Apr 25, 1983 · Amount on Record |
| Deed Doc Number | 19922866 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 363 RIVERSIDE DR, LYONS, CO 80540-8990 |
| Transaction Type | Mortgage |
| Record Updated | Feb 05, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0003781284 |
|---|---|
| Date | Apr 30, 2020 |
| Instrument | 3781284 |
| Name | COLONIAL NATIONAL MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Address | FORT WORTH, TX 76102 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | May 01, 2050 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 2.75% |
| Adjustable | Document includes a rider for adjustable-rate mortgage with a specific rate change date. |
| Type Change Date | May 01, 2030 |
| Change Frequency | Annually |
| Min Rate At Change | 2.25% |
| Max Rate At Change | 7.75% |
| Index | 1-Year LIBOR |
| Max Rate | 7.75% |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 363 RIVERSIDE DR, LYONS, CO 80540-8990 |
| Transaction Type | Mortgage |
| Record Updated | Feb 05, 2021 |
| Title Company | CAPITAL TITLE |
| Name | Verified Name |
|---|
| Document Number | 0003804443 |
|---|---|
| Date | Aug 05, 2020 |
| Instrument | 3804443 |
| Name | COLONIAL MORTGAGE CO |
|---|---|
| Type | Mortgage Company |
| Address | FORT WORTH, TX 76102 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 357 Months |
| Due | May 01, 2050 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 2.75% |
| Adjustable | Document includes a rider for adjustable-rate mortgage with a specific rate change date. |
| Type Change Date | May 01, 2030 |
| Change Frequency | Annually |
| Min Rate At Change | 2.25% |
| Max Rate At Change | 7.75% |
| Index | 1-Year CMT |
| Max Rate | 7.75% |
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 | $38,277 (+8.8%) Land $2,978 Building $35,299 | $562,900 (-) Land $43,800 Building $519,100 | |
| 2025 | $2,840.00 (+4.8%) | $35,182 (-14.95%) Land $2,738 Building $32,444 | $562,900 (-8.83%) Land $43,800 Building $519,100 |
| 2023 | $2,710.00 (+15.12%) | $41,366 (+27.18%) Land $2,533 Building $38,833 | $617,400 (+31.92%) Land $37,800 Building $579,600 |
| 2022 | $2,354.00 | $32,526 Land $2,592 Building $29,934 | $468,000 Land $37,300 Building $430,700 |
Source: FEMA National Flood Hazard Layer, Boulder County (08013C), updated October 14, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified: October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Special Flood Hazard Area | No |
| Nearest Special Flood Hazard Area | Zone AE, within 100 ft |
| Wildfire Risk | Extreme above 98% of the US · above 99% of Colorado |
|---|---|
| Wildfire Likelihood | About 1 in 57 per year |
| Exposure | Direct burnable vegetation at the parcel |
Insurers in high-risk areas may require mitigation or decline coverage; check availability before making an offer.
Values are read at the parcel center point; lenders make the official flood determination.
| Primary APN | 1199-34-4-14-002 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.25 Baths |
| Partial Baths | 2 Partial Baths |
| Total Rooms | 7 Rooms |
| Building Area | 1,830 sqft Living Area |
| Gross Area | 2,406 sqft Gross Area |
| 1st Floor | 1,254 sqft 1st Floor |
| Basement Area | 576 sqft Basement |
| Finished Basement | 576 sqft Finished |
| Stories | 1 Stories |
| Interior Structure | Wallboard/Drywall Interior Structure |
| Year Built | Built 1973 |
|---|---|
| Effective Year Built | Effective 1980 |
| Architectural Style | Ranch Style |
| Exterior Material | Wood Shingle Exterior |
| Construction Type | Frame Construction |
| Roof Material | Asphalt Roof |
| Lot Area | 15,748 sqft (0.362 acres) |
| Parking Spaces | 2 Parking Spaces |
| Garage Type | Attached Garage |
| Garage Area | 576 sqft Garage |
| Total Buildings | 2 Total Buildings |
| Shed | 1 Shed |
| Deck Area | 348 sqft Deck |
| Heating Fuel | Electric Heating Fuel |
|---|
| Account Number | R0053502 |
|---|---|
| Street Address | 363 RIVERSIDE DR |
| City | LYONS |
| State | CO |
| Zip | 80540-8990 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | LOT 16 BLK 1 RIVERSIDE ARLINGTON |
| Legal Range | 72 |
| Legal Township | 3N |
| Legal Section | 34 |
| Legal Subdivision | RIVERSIDE ARLINGTON - MT |
| Legal Block | 1 |
| Legal Lot Number | 16 |
| Jurisdiction | BOULDER CO |
| Minor Civil Division | UPPER ST. VRAIN |
| Census Blockgroup | 1 |
| Census Block | 1045 |
| Census Tract | 13602 |
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