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511 Harrison Ave, Helena, MT 59601 Property Records

Lewis And Clark County property record for 511 Harrison Ave, Helena, MT 59601

Property Summary

Property TypeTriplex
Details5 bd · 4 ba · 3,300 sqft · built 1893
Lot Size0.112 acres (4,879 sqft)
OwnerCompany Name on Record
Tax Bill$3,216 (2025)
Deeds & MortgagesJan 2018 Mortgage
Flood ZoneZone X (minimal risk)
APNR054139

Property Details

APN / Parcel Number

Primary APNR054139
Alternative APNs
  • 05-1887-25-4-39-05-0000
  • 0000002897

Interior

Bedrooms5 Beds
Full Baths4 Baths
Units3 Units
Stories2 Stories
Building Area3,300 sqft Total Area
1st Floor Area1,700 sqft
Upper Floors Area1,600 sqft
Basement Area1,600 sqft
Unfinished Basement1,600 sqft

Exterior

Year BuiltBuilt 1893
Effective Year BuiltEffective 1975
Architectural StyleTriplex
Exterior MaterialBrick
Construction TypeWood
Lot Area4,879 sqft (0.112 acres)
View / LotMajor Street/Thoroughfare
Garage TypeDetached
Garage Area400 sqft
Parking Spaces2 Parking Spaces
PorchSlab
Porch Area338 sqft
Canopy60 sqft

Utilities, Heating & Cooling

Heating SystemSpace Heater
SewerMunicipal
Water SourceCommercial

Location & Zoning

Account Number0000002897
Street Address511 HARRISON AVE
CityHELENA
StateMT
Zip59601-6104
Property CategoryResidential
Property TypeResidential > Multi-Unit > Triplex
Legal DescriptionMAULDIN ADDN, S25, T10 N, R04 W, BLOCK A, LOT 5 - 6, N48.6'
Legal Range04W
Legal Township10N
Legal Section25
Legal SubdivisionMAULDIN ADDN
Legal BlockA
Legal Lot Number5,6
JurisdictionLEWIS AND CLARK MT
Township / Civil DivisionHELENA
Census Block Group2
Census Block2016
Census Tract800

Historic Designation

Source: NPS National Register of Historic Places, as of August 1, 2026

Historic DistrictWithin 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.

Owner

Source: Lewis And Clark County records, as of September 15, 2025

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of RecordCompany Name on Record
Mailing Address502 STATE ST, HELENA, MT 59601-4334
Owner TypeCompany
VestingCompany

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleSep 21, 2023
Deed SaleSep 21, 2023
Prior SaleJan 10, 2018 · Amount on Record
Deed Document Number20233416027
Deed Book / Page62 / 5430
Prior Transfer DateSep 1, 2023
Prior Transfer Doc0003416027
Record UpdatedSep 20, 2026

January 2018: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionLEWIS AND CLARK MT
Recording DateJan 10, 2018
Property Address511 HARRISON AVE, HELENA, MT 59601-6104
Document NumberM53/7680
Book / PageM53 / 7680
Instrument DateJan 9, 2018
Instrument3316816
Transaction TypeTransfer
Record UpdatedAug 12, 2021
Title CompanyFIRST MONTANA LAND TITLE COMPANY, FORST MONTANA LAND TITLE CO

Transaction

Tax$0.00
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name
Address00000

Transferred To (Grantee/Buyer)

NameVerified Name
Address511 HARRISON AVE, HELENA, MT 59601-6104

Mortgage

Document Number3316817
DateJan 10, 2018
Instrument3316817
Lender
NameFIRST INTERSTATE BANK
TypeBank
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueFeb 1, 2048

Tax Assessment & Valuation

Source: Lewis And Clark County assessment roll, as of September 15, 2025

Property Jurisdictions

TypeName
StateMontana
CountyLewis And Clark County
MunicipalityHelena City
Elementary School DistrictHelena Elementary School District (PK - 08)
Secondary School DistrictHelena High School District (09 - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$3,216.00 (-27.47%)$544,400 (+39.8%)$544,400 (+39.8%) Land $157,927 Building $386,473
2023$4,434.00$389,400$389,400 Land $100,521 Building $288,879

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

Source: FEMA National Flood Hazard Layer, effective April 7, 2024

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskLow
lower than 64% of the US · lower than 87% of Montana
Wildfire Likelihood0.03% annual chance
ExposureIndirect
within ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water SystemHELENA WATER SYSTEM
serves 32,091 people · EPA ID MT0000241
Water SourceSurface water
Last State InspectionOct 2024
Lead3 ppb (2022–2024)
action level 15 ppb

Violations Reported to EPA

Water QualityHaloacetic acids
resolved · Jan 2023
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
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.

Internet Providers

Source: FCC Broadband Data Collection, based on 437 locations within half a mile, as of December 31, 2025

ProviderMax 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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