Boulder County property record for 223 Riverside Dr, Lyons, CO 80540 · Last verified June 2026
| Property Type | Single Family Home |
|---|---|
| Details | 1 bd · 810 sqft · built 1925 |
| Lot Size | 0.16 acres (6,973 sqft) |
| Owner | Individual Name on File |
| Last Sale | $228,800 (Mar 2026) |
| Tax Bill | $1,643 (2025) |
| Deeds & Mortgages | Mar 2026 Sale May 2021 Sale + 2 more |
| Flood Zone | Zone AE (high risk) |
| APN | 1199-34-4-11-002 |
| Primary APN | 1199-34-4-11-002 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 1 Bed |
|---|---|
| Total Rooms | 4 Rooms |
| Stories | 1 Story |
| Building Area | 810 sqft Living Area |
| 1st Floor Area | 810 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1925 |
|---|---|
| Effective Year Built | Effective 1980 |
| Architectural Style | Ranch |
| Exterior Material | Logs |
| Construction Type | Frame |
| Roof Material | Asphalt |
| Lot Area | 6,973 sqft (0.16 acres) |
| Garage Type | Detached |
| Garage Area | 240 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Porch |
| Porch Area | 216 sqft |
| Total Buildings | 2 Buildings |
| Account Number | R0053501 |
|---|---|
| Street Address | 223 RIVERSIDE DR |
| City | LYONS |
| State | CO |
| Zip | 80540-8991 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 1 LESS E 74 FT ALL LOT 2 & E 1/2 LOT 3 BLK 1 RIVERSIDE ARLINGTON |
| Legal Range | 72 |
| Legal Township | 3N |
| Legal Section | 34 |
| Legal Subdivision | RIVERSIDE ARLINGTON - MT |
| Legal Block | 1 |
| Legal Lot Number | 1 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | UPPER ST. VRAIN |
| Census Block Group | 1 |
| Census Block | 1045 |
| Census Tract | 13602 |
Source: Boulder County records · APN 1199-34-4-11-002
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 | Individual Name on File |
|---|---|
| Mailing Address | 223 RIVERSIDE DR, LYONS, CO 80540-8991 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Mar 12, 2026 | Special Warranty Deed, Transfer |
| May 26, 2021 | Warranty Deed, Transfer |
| Dec 07, 2017 | Quit Claim Deed, Transfer FIDELITY NATIONAL TITLE |
| Dec 04, 2017 | Warranty Deed, Transfer FIDELITY NATIONAL TITLE |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Mar 12, 2026 · Amount on Record |
| Deed Sale | Mar 12, 2026 · Amount on Record |
| Prior Sale | Dec 04, 2017 · Amount on Record |
| Deed Document Number | 20264123475 |
| Record Updated | Sep 20, 2026 |
| Document Type | Special Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Mar 12, 2026 |
| Property Address | 223 RIVERSIDE DR, LYONS, CO 80540 |
| Document Number | 0004123475 |
| Instrument Date | Mar 11, 2026 |
| Instrument | 4123475 |
| Transaction Type | Transfer |
| Record Updated | Apr 15, 2026 |
| Amount | Amount Recorded |
|---|---|
| Tax | $22.88 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 223 RIVERSIDE DR, LYONS, CO 80540 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | May 26, 2021 |
| Property Address | 223 RIVERSIDE DR, LYONS, CO 80540 |
| Document Number | 0003888186 |
| Instrument Date | May 17, 2021 |
| Instrument | 3888186 |
| Transaction Type | Transfer |
| Record Updated | Sep 17, 2021 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | PO BOX 207, NIWOT, CO 80544-0207 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Dec 07, 2017 |
| Property Address | 223 RIVERSIDE DR, LYONS, CO 80540 |
| Document Number | 0003629816 |
| Instrument Date | Dec 07, 2017 |
| Instrument | 3629816 |
| Transaction Type | Transfer |
| Record Updated | Jan 03, 2018 |
| Title Company | FIDELITY NATIONAL TITLE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | PO BOX 207 NIWOT CO 805440207, NIWOT, CO 80544-0207 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Dec 04, 2017 |
| Property Address | 223 RIVERSIDE DR, LYONS, CO 80540 |
| Document Number | 0003628991 |
| Instrument Date | Dec 01, 2017 |
| Instrument | 3628991 |
| Transaction Type | Transfer |
| Record Updated | Dec 11, 2017 |
| Title Company | FIDELITY NATIONAL TITLE |
| Amount | Amount Recorded |
|---|---|
| Tax | $21.00 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | PO BOX 807 NIWOT CO 80544, NIWOT, CO 80544 |
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 | $18,217 (+8.8%) Land $1,843 Building $16,374 | $267,900 (-) Land $27,100 Building $240,800 | |
| 2025 | $1,643.00 (+8.95%) | $16,744 (-19.02%) Land $1,694 Building $15,050 | $267,900 (-13.19%) Land $27,100 Building $240,800 |
| 2024 | $1,508.00 (+1.48%) | ||
| 2023 | $1,486.00 (+25.83%) | $20,676 (+61.07%) Land $1,487 Building $19,189 | $308,600 (+67.08%) Land $22,200 Building $286,400 |
| 2022 | $1,181.00 | $12,837 Land $1,175 Building $11,662 | $184,700 Land $16,900 Building $167,800 |
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 AE |
|---|---|
| Flood Hazard | High |
| 100-Year Floodplain | Yes 1% annual chance |
| Special Flood Hazard Area | Yes |
| Flood Insurance Requirement | Required (federally backed mortgages) |
| Floodway | Yes |
| Base Flood Elevation | Varies along the reach; see FIRM |
| 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.
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