Lewis And Clark County property record for 504 Dearborn Ave, Helena, MT 59601
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 3,810 sqft · built 1890 |
| Lot Size | 0.258 acres (11,238 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $6,474 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | R05542 |
| Primary APN | R05542 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Plumbing Fixtures | 11 Plumbing Fixtures |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 3,810 sqft Living Area |
| 1st Floor Area | 1,900 sqft |
| 2nd Floor Area | 1,665 sqft |
| Attic | Attic |
| Attic Area | 245 sqft |
| Basement Area | 1,515 sqft |
| Unfinished Basement | 1,515 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1890 |
|---|---|
| Effective Year Built | Effective 1980 |
| Architectural Style | Historical |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 11,238 sqft (0.258 acres) |
| Garage Type | Detached |
| Garage Area | 396 sqft |
| Parking Spaces | 1 Parking Space |
| Pool Type | Spa / Hot Tub (No Pool) |
|---|---|
| Porch | Enclosed Porch |
| Porch Area | 414 sqft |
| Deck Area | 344 sqft |
| Shed | 1 Shed |
| Shed Area | 42 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 0000000057 |
|---|---|
| Street Address | 504 DEARBORN AVE |
| City | HELENA |
| State | MT |
| Zip | 59601-2761 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | 1 |
| Legal Description | STOREY, S25, T10 N, R04 W, BLOCK 17, LOT 1, ,S 1/2 LT 2 |
| Legal Range | 04W |
| Legal Township | 10N |
| Legal Section | 25 |
| Legal Subdivision | STOREY |
| Legal Block | 17 |
| Legal Lot Number | 1,2 |
| Jurisdiction | LEWIS AND CLARK MT |
| Township / Civil Division | HELENA |
| Census Block Group | 2 |
| Census Block | 2017 |
| Census Tract | 800 |
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.
504 Dearborn Ave is owned and occupied by two individuals.
Source: Lewis And Clark County records, as of September 11, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 504 DEARBORN AVE, HELENA, MT 59601-2761 |
| 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 |
|---|---|
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 504 Dearborn Ave was $6,474.
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 | $6,474.00 | $945,400 | |
| 2025 | $945,400 Land $218,313 Building $727,087 | ||
| 2023 | $8,000.00 | $734,000 | $734,000 Land $179,438 Building $554,562 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 504 Dearborn Ave 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 504 Dearborn Ave 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 64% of the US · lower than 87% 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 437 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 |
| Montana Internet Fixed Wireless | 500 / 50 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: TDS Telecom.
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