Boulder County property record for 403 Lashley St, Longmont, CO 80504
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1.75 ba · 1,449 sqft · built 1951 |
| Lot Size | 0.183 acres (7,972 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $1,578 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1315-02-3-04-008 |
| Primary APN | 1315-02-3-04-008 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1.75 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,449 sqft Living Area |
| Gross Area | 2,208 sqft |
| 1st Floor Area | 792 sqft |
| Basement Area | 792 sqft |
| Finished Basement | 657 sqft |
| Unfinished Basement | 135 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1951 |
|---|---|
| Effective Year Built | Effective 1951 |
| Architectural Style | Ranch |
| Exterior Material | Block |
| Construction Type | Masonry / Concrete Block |
| Lot Area | 7,972 sqft (0.183 acres) |
| Garage Type | Attached |
| Garage Area | 624 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0041364 |
|---|---|
| Street Address | 403 LASHLEY ST |
| City | LONGMONT |
| State | CO |
| Zip | 80504-1427 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 39 LASHLEYS RESUB |
| Legal Range | 69 |
| Legal Township | 2N |
| Legal Section | 02 |
| Legal Subdivision | LASHLEYS RESUB - LG |
| Legal Block | 1 |
| Legal Lot Number | 39 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | LONGMONT |
| Census Block Group | 1 |
| Census Block | 1017 |
| Census Tract | 13401 |
403 Lashley St is owned and occupied by two individuals who acquired it in April 2008.
Source: Boulder County records, as of September 18, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 403 LASHLEY ST, LONGMONT, CO 80504-1427 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
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 | 2 Names on Deed |
|---|---|
| Last Sale | Aug 28, 1958 |
| Deed Sale | Aug 28, 1958 |
| Deed Document Number | 1958617544 |
| Last Transfer Date | Apr 3, 2008 |
| Transfer Doc | 0002921589 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 403 Lashley St was $1,578, up 35.7% from the year before.
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 | $20,845 (-2.08%) Land $6,007 Building $14,838 | $340,600 (-) Land $122,400 Building $218,200 | |
| 2025 | $1,578.00 (+35.68%) | $21,288 Land $7,650 Building $13,638 | $340,600 Land $122,400 Building $218,200 |
| 2024 | $1,163.00 (+1.39%) | ||
| 2023 | $1,147.00 (+15.39%) | $22,546 (+32.62%) Land $8,429 Building $14,117 | $336,500 (+37.57%) Land $125,800 Building $210,700 |
| 2022 | $994.00 | $17,000 Land $6,172 Building $10,828 | $244,600 Land $88,800 Building $155,800 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 403 Lashley St in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 34 policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 34 in force |
| Nearby Flood Claims | 2 (1990) |
| Claims Outside the SFHA | 1 of 2 |
| Most Recent Claim | Aug 1990 · rainfall accumulation |
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.
The area around 403 Lashley St has no burnable land within ember reach, so its wildfire risk is not rated.
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 564 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| NextLight Fiber | 10,000 / 10,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| CenturyLink DSL | 140 / 20 |
May also be available: AT&T, Rise Broadband, T-Mobile, TDS Telecom.
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