Boulder County property record for 3131 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 | 1,798 sqft Living Area |
| Lot Size | 1.17 acres |
| Occupancy | Owner Occupied |
| Last Sale | $373,000 (2015) |
| Tax Bill | $3,776.00 (2025) |
Source: Boulder County records · APN 1321-09-0-00-012
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 Name on File |
|---|---|
| Mailing Address | 3131 RIVERSIDE DR, LYONS, CO 80540-8973 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Sep 03, 2015 · Amount on Record |
| Deed Sale | Sep 03, 2015 · Amount on Record |
| Prior Sale | Mar 22, 1973 |
| Deed Doc Number | 20153471662 |
| Last Transfer Date | Apr 11, 2025 |
| Transfer Doc | 0004083259 |
| 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 | $41,854 (+8.8%) Land $4,264 Building $37,590 | $615,500 (-) Land $62,700 Building $552,800 | |
| 2025 | $3,776.00 (+7.43%) | $38,469 (-12.31%) Land $3,919 Building $34,550 | $615,500 (-6%) Land $62,700 Building $552,800 |
| 2023 | $3,515.00 (+11.48%) | $43,871 (+28.07%) Land $3,504 Building $40,367 | $654,800 (+32.85%) Land $52,300 Building $602,500 |
| 2022 | $3,153.00 | $34,255 Land $3,433 Building $30,822 | $492,880 Land $49,400 Building $443,480 |
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 500 ft |
| Wildfire Risk | Extreme above 98% of the US · above 99% of Colorado |
|---|---|
| Wildfire Likelihood | About 1 in 66 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 | 1321-09-0-00-012 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1.75 Baths |
| Partial Baths | 1 Partial Baths |
| Total Rooms | 7 Rooms |
| Building Area | 1,798 sqft Living Area |
| 1st Floor | 897 sqft 1st Floor |
| Upper Floors | 901 sqft Upper Floors |
| Stories | 1 Stories |
| Interior Structure | Paneling Interior Structure |
| Year Built | Built 1949 |
|---|---|
| Effective Year Built | Effective 1985 |
| Architectural Style | A-Frame Style |
| Exterior Material | Wood Shingle Exterior |
| Construction Type | Frame Construction |
| Lot Area | 51,018 sqft |
| Parking Spaces | 2 Parking Spaces |
| Garage Type | Detached Garage |
| Garage Area | 528 sqft Garage |
| Total Buildings | 3 Total Buildings |
|---|---|
| Shed | 1 Shed |
| Deck Area | 220 sqft Deck |
| Porch | Porch |
| Porch Area | 190 sqft Porch |
| Heating System | Forced Air with Air Conditioning Heating |
|---|
| Account Number | R0053871 |
|---|---|
| Street Address | 3131 RIVERSIDE DR |
| City | LYONS |
| State | CO |
| Zip | 80540-8973 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | LOTS 9-10 BLK 1 HEATHERMEADE 3 2ND PLAT & TR 3818 IN SW 1/4 NW 1/4 9-2N-72 0.35 ACS M/L ID 53870 COMBINED HERE PER OWNER 5-91 |
| Legal Range | 72 |
| Legal Township | 2N |
| Legal Section | 09 |
| Legal Subdivision | TR, NBR 961 ST VRAIN AREA |
| Legal Tract | 3818 |
| Legal Block | 1 |
| Legal Lot Number | 9-10 |
| Jurisdiction | BOULDER CO |
| Minor Civil Division | UPPER ST. VRAIN |
| Census Blockgroup | 1 |
| Census Block | 1047 |
| Census Tract | 13602 |
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