Lewis And Clark County property record for 1821 Boulder Ave, Helena, MT 59601
| Property Type | Duplex |
|---|---|
| Details | 4 bd · 4 ba · 1,974 sqft · built 1940 |
| Lot Size | 0.161 acres (7,013 sqft) |
| Owner | Company Name on File |
| Tax Bill | $4,868 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | R058350 |
| Primary APN | R058350 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 4 Baths |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 1,974 sqft Total Area |
| 1st Floor Area | 1,974 sqft |
| Year Built | Built 1940 |
|---|---|
| Effective Year Built | Effective 1990 |
| Architectural Style | Duplex Single |
| Construction Type | Wood |
| Lot Area | 7,013 sqft (0.161 acres) |
| Garage Type | Detached |
| Garage Area | 480 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Slab |
| Porch Area | 40 sqft |
| Heating System | Space Heater |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 0000006190 |
|---|---|
| Street Address | 1821 BOULDER AVE |
| City | HELENA |
| State | MT |
| Zip | 59601-3106 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Description | NORTHERN PACIFIC ADDN, S29, T10 N, R03 W, BLOCK 72, LOT 5 |
| Legal Range | 03W |
| Legal Township | 10N |
| Legal Section | 29 |
| Legal Subdivision | NORTHERN PACIFIC ADDN |
| Legal Block | 72 |
| Legal Lot Number | 5 |
| Jurisdiction | LEWIS AND CLARK MT |
| Township / Civil Division | HELENA |
| Census Block Group | 1 |
| Census Block | 1016 |
| Census Tract | 900 |
1821 Boulder Ave, a duplex, is owned by a company that acquired it in October 2011.
Source: Lewis And Clark County records, as of September 11, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 25 SPRING RD, CODY, WY 82414-9612 |
| Owner Type | Company |
| Vesting | Company |
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 | Oct 11, 2011 |
| Deed Sale | Oct 11, 2011 |
| Deed Document Number | 20113210955 |
| Deed Book / Page | 44 / 1899 |
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 1821 Boulder Ave was $4,868.
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 | $4,868.00 | $329,200 | |
| 2025 | $329,200 Land $126,148 Building $203,052 | ||
| 2023 | $2,854.00 | $250,600 | $250,600 Land $84,150 Building $166,450 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 1821 Boulder Ave in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1982.
Source: FEMA National Flood Hazard Layer, effective April 7, 2024 · 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 |
| Nearby Flood Policies | 1 in force |
| Nearby Flood Claims | 1 (1982) |
| Most Recent Claim | Jun 1982 · tidal / storm surge |
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 1821 Boulder Ave 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 | 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 345 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| TDS Telecom Fiber | 8,000 / 8,000 |
| 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: Montana Internet.
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