Boulder County property record for 424 Sumner St, Longmont, CO 80501
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 1,767 sqft · built 1951 |
| Lot Size | 0.175 acres (7,623 sqft) |
| Owner | Individual Name on File |
| Last Sale | $66,000 (Feb 1992) |
| Tax Bill | $3,562 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1315-04-1-24-007 |
| Primary APN | 1315-04-1-24-007 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 2 Stories |
| Building Area | 1,767 sqft Living Area |
| 1st Floor Area | 1,177 sqft |
| Upper Floors Area | 590 sqft |
| Interior Walls | Plaster |
| Year Built | Built 1951 |
|---|---|
| Effective Year Built | Effective 1971 |
| Architectural Style | A-Frame |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Lot Area | 7,623 sqft (0.175 acres) |
| Garage Type | Detached |
| Garage Area | 288 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Porch |
| Porch Area | 172 sqft |
| Deck Area | 184 sqft |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0044656 |
|---|---|
| Street Address | 424 SUMNER ST |
| City | LONGMONT |
| State | CO |
| Zip | 80501-4864 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOTS 11-12 & N1/2 LOT 13 BLK 4 CAPITOL HILL |
| Legal Range | 69 |
| Legal Township | 2N |
| Legal Section | 04 |
| Legal Subdivision | CAPITOL HILL - LG |
| Legal Block | 4 |
| Legal Lot Number | 11 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | LONGMONT |
| Census Block Group | 4 |
| Census Block | 4005 |
| Census Tract | 13302 |
424 Sumner St is owned and occupied by an individual who bought it in February 1992.
Source: Boulder County records, as of September 18, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 424 SUMNER ST, LONGMONT, CO 80501-4864 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Feb 4, 1992 · Amount on File |
| Deed Sale | Feb 4, 1992 · Amount on File |
| Prior Sale | Jun 1, 1988 |
| Deed Document Number | 19921159166 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 424 Sumner St was $3,562.
Source: Boulder County assessment roll, as of September 18, 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Municipality | Longmont City |
| Unified School District | St. Vrain Valley School District RE 1J (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $33,225 (-2.08%) Land $7,480 Building $25,745 | $542,900 (-) Land $164,300 Building $378,600 | |
| 2025 | $3,562.00 | $33,932 Land $10,269 Building $23,663 | $542,900 Land $164,300 Building $378,600 |
| 2023 | $3,125.00 (+9.61%) | $36,810 (+27.75%) Land $11,491 Building $25,319 | $549,400 (+32.51%) Land $171,500 Building $377,900 |
| 2022 | $2,851.00 | $28,815 Land $8,458 Building $20,357 | $414,600 Land $121,700 Building $292,900 |
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.
FEMA maps place 424 Sumner St in Zone X, an area of minimal flood risk.
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 minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 1 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.
Wildfire risk around 424 Sumner St is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 98% of the US · lower than 99.2% of Colorado |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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 506 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| NextLight Fiber | 10,000 / 10,000 |
| Xfinity Cable | 1,200 / 35 |
| Verizon Fixed Wireless | 300 / 20 |
| Rise Broadband Fixed Wireless | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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