Lewis And Clark County property record for 21 Jefferson St, Helena, MT 59601
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 1,328 sqft · built 1940 |
| Lot Size | 0.096 acres (4,182 sqft) |
| Owner | 2 Company Names on File |
| Tax Bill | $7,783 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | R0523434 |
| Primary APN | R0523434 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 5 Rooms |
| Stories | 2 Stories |
| Building Area | 1,328 sqft Living Area |
| 1st Floor Area | 876 sqft |
| 2nd Floor Area | 452 sqft |
| Basement Area | 876 sqft |
| Finished Basement | 876 sqft |
| Year Built | Built 1940 |
|---|---|
| Effective Year Built | Effective 2000 |
| Architectural Style | Conventional |
| Exterior Material | Shingles |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Wood Shingle |
| Lot Area | 4,182 sqft (0.096 acres) |
| Garage Type | Detached |
| Garage Area | 440 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Slab |
| Porch Area | 25 sqft |
| Deck Area | 18 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 0000021125 |
|---|---|
| Street Address | 21 JEFFERSON ST |
| City | HELENA |
| State | MT |
| Zip | 59601-6251 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | HELENA TOWNSITE 1869, S25, T10 N, R04 W, BLOCK 060, LOT 017 |
| Legal Range | 04W |
| Legal Township | 10N |
| Legal Section | 25 |
| Legal Subdivision | HELENA TOWNSITE 1869 |
| Legal Block | 60 |
| Legal Lot Number | 17 |
| Jurisdiction | LEWIS AND CLARK MT |
| Township / Civil Division | HELENA |
| Census Block Group | 1 |
| Census Block | 1022 |
| Census Tract | 702 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Historic District | Within the Helena Historic District listed 1972 · 75 contributing resources · NRIS 72000737 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
21 Jefferson St is owned by a company that acquired it in August 2024.
Source: Lewis And Clark County records, as of September 11, 2026
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 23 SMUGGLER GROVE RD, ASPEN, CO 81611-2454 |
| Owner Type | Company |
| Vesting | Et Al (and Others) |
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 13, 2024 |
| Deed Sale | Aug 13, 2024 |
| Deed Document Number | 20243426457 |
| Deed Book / Page | 63 / 4468 |
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 21 Jefferson St was $7,783.
Source: Lewis And Clark County assessment roll, as of September 11, 2026
| Type | Name |
|---|---|
| State | Montana |
| County | Lewis And Clark County |
| Municipality | Helena City |
| Elementary School District | Helena Elementary School District (PK - 08) |
| Secondary School District | Helena High School District (09 - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $7,783.00 | $526,400 | |
| 2025 | $526,400 Land $151,690 Building $374,710 | ||
| 2023 | $3,582.00 | $328,700 | $328,700 Land $92,370 Building $236,330 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 21 Jefferson St in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective April 7, 2024
| 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 21 Jefferson St is low, with a 0.03% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 67% of the US · lower than 88% of Montana |
|---|---|
| Wildfire Likelihood | 0.03% annual chance |
| Exposure | Indirect 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 | HELENA WATER SYSTEM serves 32,091 people · EPA ID MT0000241 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Oct 2024 |
| Lead | 3 ppb (2022–2024) action level 15 ppb |
| Water Quality | Haloacetic acids resolved · Jan 2023 |
|---|---|
| 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) |
|---|---|
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: CenturyLink, Montana Internet, T-Mobile.
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