Boulder County property record for 410 Prospect St, Lyons, CO 80540 · Last verified June 2026
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1.5 ba · 1,224 sqft · built 1978 |
| Lot Size | 0.163 acres (7,115 sqft) |
| Owner | Individual Name on File |
| Last Sale | $240,000 (Feb 2004) |
| Tax Bill | $5,390 (2025) |
| Flood Zone | Zone AE (high risk) |
| APN | 1203-18-4-25-013 |
| Primary APN | 1203-18-4-25-013 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,224 sqft Living Area |
| 1st Floor Area | 1,224 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1978 |
|---|---|
| Effective Year Built | Effective 1985 |
| Architectural Style | Ranch |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Lot Area | 7,115 sqft (0.163 acres) |
| Garage Type | Detached |
| Garage Area | 528 sqft |
| Parking Spaces | 2 Parking Spaces |
| Deck Area | 538 sqft |
| Heating Fuel | Electric |
|---|
| Account Number | R0077873 |
|---|---|
| Street Address | 410 PROSPECT ST |
| City | LYONS |
| State | CO |
| Zip | 80540-5068 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 14 BLK 34 LYONS EXCEPT THE REAR 10FT |
| Legal Range | 70 |
| Legal Township | 3N |
| Legal Section | 18 |
| Legal Subdivision | LYONS - LY |
| Legal Block | 34 |
| Legal Lot Number | 14 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | LONGMONT |
| Census Block Group | 3 |
| Census Block | 3025 |
| Census Tract | 13601 |
Source: Boulder County records · APN 1203-18-4-25-013
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 | PO BOX 1173, LYONS, CO 80540-1173 |
| Owner Type | Individual |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Feb 26, 2004 · Amount on Record |
| Deed Sale | Feb 26, 2004 · Amount on Record |
| Prior Sale | Dec 10, 2003 · Amount on Record |
| Deed Document Number | 20042560965 |
| Last Transfer Date | Dec 30, 2004 |
| Transfer Doc | 0002657380 |
| 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 | $43,105 (+8.8%) Land $4,386 Building $38,719 | $633,900 (-) Land $64,500 Building $569,400 | |
| 2025 | $5,390.00 (+41.06%) | $39,619 (+9.28%) Land $4,031 Building $35,588 | $633,900 (+17.15%) Land $64,500 Building $569,400 |
| 2023 | $3,821.00 (+15.02%) | $36,253 (+34.54%) Land $3,745 Building $32,508 | $541,100 (+39.57%) Land $55,900 Building $485,200 |
| 2022 | $3,322.00 | $26,945 Land $3,426 Building $23,519 | $387,700 Land $49,300 Building $338,400 |
Source: FEMA National Flood Hazard Layer, Boulder County (08013C), updated October 14, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 080130136013, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone AE |
|---|---|
| Special Flood Hazard Area | Yes |
| Flood Hazard | High |
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required (federally backed mortgages) |
| Flood Insurance Cost | Premium on Record median of 38 individual NFIP policies nearby |
| Nearby Flood Policies | 38 in force 30 of 38 on primary residences |
| Nearby Flood Claims | 62 (1978–2013) |
| Claims Outside the SFHA | 4 of 62 |
| Most Recent Claim | Dec 2013, other causes |
| Flood Events |
|
| Wildfire Risk | High above 79% of the US · above 81% of Colorado |
|---|---|
| Wildfire Likelihood | About 1 in 224 per year |
| Exposure | Indirect within ember reach |
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: NPS National Register of Historic Places · August 1, 2026 release · Last verified October 2026
| Historic District | Within the Lyons Sandstone Buildings listed 1980 · 13 contributing resources · NRIS 80000880 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
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