Boulder County property record for 403 Karsh Dr, Longmont, CO 80504
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 1.75 ba · 3,132 sqft · built 1975 |
| Lot Size | 0.426 acres (18,569 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $72,000 (Nov 1976) |
| Tax Bill | $3,548 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1315-01-3-05-005 |
| Primary APN | 1315-01-3-05-005 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 1.75 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 3,132 sqft Living Area |
| Gross Area | 4,272 sqft |
| 1st Floor Area | 1,872 sqft |
| Basement Area | 1,872 sqft |
| Finished Basement | 1,260 sqft |
| Unfinished Basement | 612 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1975 |
|---|---|
| Effective Year Built | Effective 1975 |
| Architectural Style | Ranch |
| Exterior Material | Brick Veneer |
| Construction Type | Masonry / Concrete Block |
| Lot Area | 18,569 sqft (0.426 acres) |
| Garage Type | Attached |
| Garage Area | 528 sqft |
| Parking Spaces | 2 Parking Spaces |
| Patio Area | 768 sqft |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0061380 |
|---|---|
| Street Address | 403 KARSH DR |
| City | LONGMONT |
| State | CO |
| Zip | 80504-1317 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 69 FOX HILL |
| Legal Range | 69 |
| Legal Township | 2N |
| Legal Section | 01 |
| Legal Subdivision | FOX HILL - LG |
| Legal Block | 3 |
| Legal Lot Number | 69 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | LONGMONT |
| Census Block Group | 3 |
| Census Block | 3035 |
| Census Tract | 13402 |
403 Karsh Dr is owned and occupied by two individuals who bought it in November 1976.
Source: Boulder County records, as of September 18, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 403 KARSH DR, LONGMONT, CO 80504-1317 |
| 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 | 2 Names on Deed |
|---|---|
| Last Sale | Nov 24, 1976 · Amount on File |
| Deed Sale | Nov 24, 1976 · Amount on File |
| Prior Sale | Jun 10, 1974 · Amount on File |
| Deed Document Number | 1976201057 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 403 Karsh Dr was $3,548.
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 | $39,217 (-2.08%) Land $14,023 Building $25,194 | $640,800 (-) Land $270,300 Building $370,500 | |
| 2025 | $3,548.00 | $40,050 Land $16,894 Building $23,156 | $640,800 Land $270,300 Building $370,500 |
| 2023 | $3,177.00 (+21.17%) | $44,059 (+31.72%) Land $18,539 Building $25,520 | $657,600 (+36.63%) Land $276,700 Building $380,900 |
| 2022 | $2,622.00 | $33,450 Land $13,052 Building $20,398 | $481,300 Land $187,800 Building $293,500 |
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 403 Karsh Dr in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective October 14, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 403 Karsh Dr 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 99.1% of the US · lower than 99.6% of Colorado |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | Direct burnable vegetation |
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 162 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 |
| CenturyLink DSL | 140 / 20 |
May also be available: T-Mobile, Verizon.
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