Boulder County property record for 341 Park St, Lyons, CO 80540
| Property Type | Exempt (Full or Partial) |
|---|---|
| Details | 4 bd · 2 ba · 1,825 sqft · built 1903 |
| Lot Size | 5.5 acres (239,991 sqft) |
| Owner | Company Name on Record |
| Last Sale | $557,194 (Feb 2016) |
| Flood Zone | Zone AE (high risk) |
| APN | 1203-18-4-55-002 |
| Primary APN | 1203-18-4-55-002 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Building Area | 1,825 sqft Living Area |
| 1st Floor Area | 1,825 sqft |
| Year Built | Built 1903 |
|---|---|
| Effective Year Built | Effective 1903 |
| Architectural Style | Modular |
| Exterior Material | Brick Veneer |
| Construction Type | Masonry / Concrete Block |
| Lot Area | 239,991 sqft |
| Garage Area | 624 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Porch |
| Porch Area | 88 sqft |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0504595 |
|---|---|
| Street Address | 341 PARK ST |
| City | LYONS |
| State | CO |
| Zip | 80540-5054 |
| Property Category | Other |
| Property Type | Other > Exempt (Full or Partial) |
| Legal Description | LOT 1 LESS NE PT & LOTS 2-4 & 7-10 & 15-24 BLK 23 AND LOTS 1-10 & 13-24 & STREET ADJ BLK 22 LYONS LESS PT SOUTH OF SOUTH ST VRAIN CREEK & LESS PT WITHIN 75 FT ON N SIDE OF ST VRAIN CREEK |
| Legal Range | 70 |
| Legal Township | 3N |
| Legal Section | 18 |
| Legal Subdivision | LYONS - LY |
| Legal Block | 23,2 |
| Legal Lot Number | 1 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | LONGMONT |
| Census Block Group | 3 |
| Census Block | 3023 |
| Census Tract | 13601 |
Source: Boulder County records, as of June 15, 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 Record |
|---|---|
| Mailing Address | PO BOX 49, LYONS, CO 80540-0049 |
| Owner Type | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Feb 16, 2016 · Amount on Record |
| Deed Sale | Feb 16, 2016 · Amount on Record |
| Prior Sale | Dec 18, 1961 |
| Deed Document Number | 20163501094 |
| Prior Transfer Date | Oct 7, 2015 |
| Prior Transfer Doc | 0003501093 |
| Record Updated | Sep 20, 2026 |
Source: Boulder County assessment roll, as of June 15, 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Municipality | Lyons Town |
| Unified School District | St. Vrain Valley School District RE 1J (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $87,523 (+8.8%) Land $87,523 | $1,287,100 (-) Land $1,287,100 | |
| 2025 | Additional exemption filed | $80,444 (+58.42%) Land $80,444 | $1,287,100 (+69.82%) Land $1,287,100 |
| 2023 | Additional exemption filed | $50,780 Land $50,780 | $757,908 Land $757,908 |
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.
Source: FEMA National Flood Hazard Layer, effective October 14, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | Yes |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on Record median of 38 policies |
| Nearby Flood Policies | 38 in force |
| Nearby Flood Claims | 62 (1978–2013) |
| Claims Outside the SFHA | 4 of 62 |
| Most Recent Claim | Dec 2013 · other causes |
| Claims by Event |
|
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | High above 79% of the US · above 81% of Colorado |
|---|---|
| Wildfire Likelihood | 0.4% annual chance |
| Exposure | Indirect within ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | TOWN OF LYONS serves 2,990 people · EPA ID CO0107496 |
|---|---|
| Water Source | Purchased surface water from CITY OF LONGMONT |
| Last State Inspection | Nov 2022 |
| Lead | Under 1 ppb (2023–2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 275 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Lyons Communications Fiber · Cable · Fixed Wireless | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
| Rise Broadband Fixed Wireless | 100 / 20 |
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