Lewis And Clark County property record for 1105 Prospect Ave, Helena, MT 59601
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 910 sqft · built 1959 |
| Lot Size | 0.124 acres (5,401 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $181,100 (Mar 2015) |
| Tax Bill | $3,798 (2026) |
| Flood Zone | Zone D (undetermined) |
| APN | R052937 |
| Primary APN | R052937 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Plumbing Fixtures | 6 Plumbing Fixtures |
| Total Rooms | 4 Rooms |
| Stories | 1 Story |
| Building Area | 910 sqft Living Area |
| 1st Floor Area | 910 sqft |
| Year Built | Built 1959 |
|---|---|
| Effective Year Built | Effective 1980 |
| Architectural Style | Ranch |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 5,401 sqft (0.124 acres) |
| Garage Type | Detached |
| Garage Area | 308 sqft |
| Parking Spaces | 1 Parking Space |
| Deck Area | 272 sqft |
| Shed | 1 Shed |
| Shed Area | 48 sqft |
| Cooling System | HVAC |
|---|---|
| Heating System | Floor/Wall Furnace |
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 0000001952 |
|---|---|
| Street Address | 1105 PROSPECT AVE |
| City | HELENA |
| State | MT |
| Zip | 59601-3864 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | BEATTIE ADDN, S30, T10 N, R03 W, BLOCK 3, N 10' OF E2 LT 16, N 10' LT 17, LOCKEY ADD BLK 3 LTS 1-2-3 |
| Legal Range | 03W |
| Legal Township | 10N |
| Legal Section | 30 |
| Legal Subdivision | BEATTIE ADDN |
| Legal Block | 3 |
| Legal Lot Number | 1-3 |
| Jurisdiction | LEWIS AND CLARK MT |
| Township / Civil Division | HELENA |
| Census Block Group | 3 |
| Census Block | 3025 |
| Census Tract | 900 |
1105 Prospect Ave is owned by two individuals who bought it in March 2015.
Source: Lewis And Clark County records, as of September 11, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 140 BIRCH DR, KALISPELL, MT 59901-2950 |
| 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 | Mar 31, 2015 · Amount on File |
| Deed Sale | Mar 31, 2015 · Amount on File |
| Deed Document Number | 20153270793 |
| Deed Book / Page | 49 / 6584 |
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 1105 Prospect Ave was $3,798.
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 | $3,798.00 | $256,800 | |
| 2025 | $256,800 Land $163,030 Building $93,770 | ||
| 2023 | $2,615.00 | $240,000 | $240,000 Land $107,190 Building $132,810 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 1105 Prospect Ave in Zone D, where flood risk has not been studied.
Source: FEMA National Flood Hazard Layer, effective April 7, 2024 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone D undetermined · not studied |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 1 in force |
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.
Wildfire risk around 1105 Prospect Ave 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 96% of the US · lower than 99.1% of Montana |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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 318 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: 3 Rivers Communications, Montana Internet.
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