Lawrence County property record for 142 Mortensen Ln, Spearfish, SD 57783 · Last verified June 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bathrooms | 6 Baths |
| Year Built | Built 2015 |
| Square Footage | 2,288 sqft Living Area |
| Lot Size | 42,689 sqft (0.98 acres) |
| Garage | 1,470 sqft |
| Tax Bill | $5,687.00 (2025) |
| Primary APN | 32320-00090-106-01 |
|---|---|
| Alternative APN |
|
| Full Baths | 6 Baths |
|---|---|
| Plumbing Fixtures | 16 Plumbing Fixtures |
| Building Area | 2,288 sqft Living Area |
| 1st Floor | 2,288 sqft 1st Floor |
| Basement Area | 2,196 sqft Basement |
| Unfinished Basement | 2,196 sqft Unfinished |
| Year Built | Built 2015 |
|---|---|
| Effective Year Built | Effective 2015 |
| Lot Area | 42,689 sqft (0.98 acres) |
| Parking Spaces | 5 Parking Spaces |
| Garage Area | 1,470 sqft Garage |
| Account Number | R18355 |
|---|---|
| Street Address | 142 MORTENSEN LN |
| City | SPEARFISH |
| State | SD |
| Zip | 57783 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | HILLSVIEW ADDITION LOT P1 PLAT 2014-05185 |
| Legal Subdivision | HILLSVIEW ADDITION |
| Legal Lot Number | P1 |
| Jurisdiction | LAWRENCE SD |
| Minor Civil Division | SPEARFISH |
| Census Blockgroup | 2 |
| Census Block | 2014 |
| Census Tract | 966301 |
Source: Lawrence County records · APN 32320-00090-106-01
Assessment roll updated September 2, 2025 · 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 | 2 Individual Names on File |
|---|---|
| Mailing Address | PO BOX 378, SPEARFISH, SD 57783-0378 |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Record Refreshed | Sep 20, 2026 |
Source: Lawrence County records · Assessment roll updated September 2, 2025 · Last verified June 2026
| Type | Name |
|---|---|
| State | South Dakota |
| County | Lawrence County |
| Municipality | Spearfish City |
| Unified School District | Spearfish School District 40-2 (PK - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $5,687.00 (+0.02%) | $546,150 (+26.57%) Land $109,610 Building $436,540 | |
| 2024 | $5,686.00 (+2.01%) | ||
| 2023 | $531,780 Land $74,610 Building $457,170 | ||
| 2022 | $5,574.00 | $431,490 Land $69,610 Building $361,880 |
142 Mortensen Ln is in FEMA Zone X, outside the Special Flood Hazard Area, with direct wildfire exposure (Moderate risk).
Source: FEMA National Flood Hazard Layer · Lawrence County (46081C), updated April 29, 2026
| FEMA Flood Zone | Zone X minimal flood hazard · outside the 0.2% annual chance floodplain |
|---|---|
| Special Flood Hazard Area | No |
Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020
| Wildfire Risk to Homes | Moderate 47th percentile of exposed land nationally · 35th in South Dakota |
|---|---|
| Wildfire Likelihood | Moderate — about 1 in 1,235 per year |
| Exposure | Direct burnable vegetation at the parcel |
Values are read at the parcel center point; lenders make the official flood determination.
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