Butte-Silver Bow property record for 504 W Porphyry St, Butte, MT 59701
| Property Type | Exempt (Full or Partial) |
|---|---|
| Lot Size | 0.138 acres (6,011 sqft) |
| Owner | Company Name on File |
| Tax Bill | $141 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | R018061 |
| Primary APN | R018061 |
|---|---|
| Alternative APNs |
|
| Lot Area | 6,011 sqft (0.138 acres) |
|---|---|
| Lot Dimensions | 100 ft deep x 60 ft wide |
| Terrain | Above Road/Slope |
| Heating Fuel | Gas |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 0000635510 |
|---|---|
| Street Address | 504 W PORPHYRY ST |
| City | BUTTE |
| State | MT |
| Zip | 59701 |
| Property Category | Other |
| Property Type | Other > Exempt (Full or Partial) |
| Local Zoning Code | R-3 |
| Legal Description | TRAVONIA FRACTION, S13, T03 N, R08 W, BLOCK 1, LOT 1 - 2, CZAROMAH LODE - POR |
| Legal Range | 08W |
| Legal Township | 03N |
| Legal Section | 13 |
| Legal Subdivision | TRAVONIA FRACTION |
| Legal Block | 1 |
| Legal Lot Number | 1,2 |
| Jurisdiction | SILVER BOW MT |
| Township / Civil Division | BUTTE |
| Census Block Group | 3 |
| Census Block | 3014 |
| Census Tract | 200 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Historic District | Within the Butte-Anaconda Historic District (Additional Documentation) listed 1966 · 6,015 contributing resources · National Historic Landmark (designated 1961) · NRIS 66000438 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
504 W Porphyry St is owned by a company.
Source: Butte-Silver Bow records, as of September 4, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 500 ELDORADO BLVD, 4300, BROOMFIELD, CO 80021-3564 |
| Owner Type | 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 |
|---|---|
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 504 W Porphyry St was $141.
Source: Butte-Silver Bow assessment roll, as of September 4, 2026
| Type | Name |
|---|---|
| State | Montana |
| County / Consolidated City | Butte-Silver Bow |
| Elementary School District | Butte Elementary School District (PK - 08) |
| Secondary School District | Butte High School District (09 - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $141.00 | $31,347 (-) | |
| 2025 | $141.00 | $31,347 | $31,347 Land $31,347 |
| 2023 | $125.00 (-40.48%) | $45,001 | $45,001 Land $45,001 |
| 2022 | $210.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 504 W Porphyry St in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective May 31, 2022
| 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 W Porphyry St is low, with 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 80% of the US · lower than 93% of Montana |
|---|---|
| Wildfire Likelihood | 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 | BUTTE SILVERBOW WATER DEPT serves 33,000 people · EPA ID MT0000170 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Nov 2025 |
| Lead | 2 ppb (2022–2024) action level 15 ppb |
| Water Quality | Failure to filter resolved · Apr 2012 |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 3 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 576 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 |
| Visionary Broadband Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: T-Mobile.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures