Boulder County property record for 417 Prosper Pl, Longmont, CO 80501
| Property Type | Destroyed / Uninhabitable Vacant Land |
|---|---|
| Lot Size | 0.004 acres (158 sqft) |
| Owner | Company Name on Record |
| Flood Zone | Zone X (moderate risk) |
| APN | 1315-11-3-23-001 |
| Primary APN | 1315-11-3-23-001 |
|---|---|
| Alternative APN |
|
| Lot Area | 158 sqft (0.004 acres) |
|---|
| Account Number | R0618030 |
|---|---|
| Street Address | 417 PROSPER PL |
| City | LONGMONT |
| State | CO |
| Zip | 80501-9011 |
| Property Category | Vacant Land |
| Property Type | Vacant Land > Destroyed / Uninhabitable |
| Legal Description | OUTLOT A IRWIN THOMAS 1ST FLG REPLAT C |
| Legal Subdivision | IRWIN THOMAS 1ST FLG REPLAT C |
| Legal Block | OL |
| Legal Lot Number | A |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | LONGMONT |
| Census Block Group | 4 |
| Census Block | 4008 |
| Census Tract | 13211 |
Source: Boulder County records, as of June 15, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 1125 JEFFERSON AVE, LOUISVILLE, CO 80027-1754 |
| Owner Type | Company |
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
Source: Boulder County assessment roll, as of June 15, 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Municipality | Longmont City |
| Unified School District | St. Vrain Valley School District RE 1J (PK - 12) |
Source: FEMA National Flood Hazard Layer, effective October 14, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 5 in force |
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 | Not rated no burnable land 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 | CITY OF LONGMONT serves 104,178 people · EPA ID CO0107485 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Sep 2025 |
| Lead | 2 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 12 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Verizon Fixed Wireless | 300 / 20 |
| Starlink Satellite | 280 / 30 |
| Hilltop Broadband Fixed Wireless | 50 / 15 |
| CenturyLink DSL | 40 / 3 |
| T-Mobile Fixed Wireless | 25 / 3 |
| AT&T Fixed Wireless | 25 / 3 |
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