Boulder County property record for 507 W Main St, Lyons, CO 80540
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 2,034 sqft · built 1956 |
| Lot Size | 0.922 acres (40,165 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $114,663 (Jun 1997) |
| Tax Bill | $5,739 (2025) |
| Flood Zone | Zone AE (high risk) |
| APN | 1203-18-3-00-019 |
| Primary APN | 1203-18-3-00-019 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 2,034 sqft Living Area |
| 1st Floor Area | 2,034 sqft |
| Interior Walls | Paneling |
| Year Built | Built 1956 |
|---|---|
| Effective Year Built | Effective 1970 |
| Architectural Style | Ranch |
| Exterior Material | Block |
| Construction Type | Masonry / Concrete Block |
| Lot Area | 40,165 sqft (0.922 acres) |
| Garage Type | Detached |
| Garage Area | 1,200 sqft |
| Parking Spaces | 7 Parking Spaces |
| Patio Area | 336 sqft |
| Total Buildings | 2 Buildings |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0050431 |
|---|---|
| Street Address | 507 W MAIN ST |
| City | LYONS |
| State | CO |
| Zip | 80540-5043 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | .686 ACS M/L NE 1/4 NE 1/4 SW 1/4 18-3N-70 LESS 310 SF & 498 SF SPLITS TO ROW |
| Legal Range | 70 |
| Legal Township | 3N |
| Legal Section | 18 |
| Legal Subdivision | TR, NBR 962 LYONS AREA |
| Legal Block | 7 |
| Legal Lot Number | 1 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | LONGMONT |
| Census Block Group | 2 |
| Census Block | 2024 |
| Census Tract | 13601 |
Source: Boulder County records · APN 1203-18-3-00-019
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 | PO BOX 1066, LYONS, CO 80540-1066 |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Jun 11, 1997 · Amount on Record |
| Deed Sale | Jun 11, 1997 · Amount on Record |
| Prior Sale | Nov 29, 1960 |
| Deed Document Number | 19971705624 |
| Last Transfer Date | Feb 02, 1999 |
| Transfer Doc | 0001904024 |
| Record Updated | Sep 20, 2026 |
Source: Boulder County records · Assessment roll updated June 15, 2026 · Last verified June 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Municipality | Lyons Town |
| 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 | $45,893 (+8.8%) Land $8,303 Building $37,590 | $674,900 (-) Land $122,100 Building $552,800 | |
| 2025 | $5,739.00 (+7.63%) | $42,181 (-14.16%) Land $7,631 Building $34,550 | $674,900 (-7.98%) Land $122,100 Building $552,800 |
| 2023 | $5,332.00 (+16.27%) | $49,138 (+32.1%) Land $7,397 Building $41,741 | $733,400 (+37.03%) Land $110,400 Building $623,000 |
| 2022 | $4,586.00 | $37,197 Land $6,721 Building $30,476 | $535,200 Land $96,700 Building $438,500 |
Source: FEMA National Flood Hazard Layer as of October 14, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on Record median of 22 policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 22 in force |
| Nearby Flood Claims | 56 (1980–2015) |
| Claims Outside the SFHA | 23 of 56 |
| Most Recent Claim | Jun 2015 · Severe Storms, Tornadoes, Flooding, Landslides, And Mudslides |
| Claims by Event |
|
| Wildfire Risk | High above 83% of the US · above 86% of Colorado |
|---|---|
| Wildfire Likelihood | 0.6% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Z3N Fiber · Cable · Fixed Wireless | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: JAB Wireless.
Based on FCC filings for 177 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | TOWN OF LYONS serves 2,990 people |
|---|---|
| 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures