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520 Harrison Ave, Helena, MT 59601 Property Records

Lewis And Clark County property record for 520 Harrison Ave, Helena, MT 59601

Property Summary

Property TypeSingle Family Home
Details4 bd · 2.5 ba · 3,966 sqft · built 1898
Lot Size0.23 acres (10,019 sqft)
OwnerTrust Name on File
Last Sale$363,800 (May 2013)
Tax Bill$7,580 (2026)
Deeds & MortgagesAug 2019 Line of Credit
Flood ZoneZone X (minimal risk)
APNR051539

Property Details

APN / Parcel Number

Primary APNR051539
Alternative APNs
  • 05-1887-25-4-46-07-0000
  • 0000000877

Interior

Bedrooms4 Beds
Full Baths2.5 Baths
Half Baths1 Half Bath
Total Rooms8 Rooms
Stories2 Stories
Building Area3,966 sqft Living Area
1st Floor Area1,629 sqft
2nd Floor Area1,685 sqft
AtticAttic
Attic Area652 sqft
Basement Area1,600 sqft
Finished Basement1,600 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1898
Effective Year BuiltEffective 1990
Architectural StyleTraditional
Exterior MaterialBrick
Construction TypeMasonry / Concrete Block
Roof TypeGable
Roof MaterialAsphalt
Lot Area10,019 sqft (0.23 acres)
Garage Area238 sqft
Parking Spaces1 Parking Space
PorchEnclosed Porch
Porch Area200 sqft

Utilities, Heating & Cooling

Cooling SystemCentral
Heating SystemCentral
Heating FuelGas
SewerMunicipal
Water SourceCommercial

Location & Zoning

Account Number0000000877
Street Address520 HARRISON AVE
CityHELENA
StateMT
Zip59601-6103
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionMAULDIN ADDN, S25, T10 N, R04 W, BLOCK I, N100' OF LTS 1, 2
Legal Range04W
Legal Township10N
Legal Section25
Legal SubdivisionMAULDIN ADDN
Legal BlockI
Legal Lot Number1,2
JurisdictionLEWIS AND CLARK MT
Township / Civil DivisionHELENA
Census Block Group1
Census Block1008
Census Tract702

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

520 Harrison Ave is owner-occupied and held in a trust since May 2013.

Source: Lewis And Clark County records, as of September 11, 2026

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of RecordTrust Name on File
Mailing Address520 HARRISON AVE, HELENA, MT 59601-6103
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust, Family Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleMay 6, 2013 · Amount on File
Deed SaleMay 6, 2013 · Amount on File
Deed Document Number20133241225
Deed Book / Page47 / 3
Prior Transfer DateMay 1, 2013
Prior Transfer DocM47/0003
Record UpdatedOct 29, 2026

August 2019: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionLEWIS AND CLARK MT
Property Address520 HARRISON AVE, HELENA, MT 59601-6103
Transaction TypeMortgage
Record UpdatedSep 20, 2019
Title CompanyTITLE365

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document NumberM55/9127
DateAug 26, 2019
Book PageM55/9127
Instrument3341728
Lender
NameWELLS FARGO BANK NA
TypeBank
AddressSIOUX FALLS, SD 57104
Agreement
TypeLine of Credit
AmountAmount on Record
Term361 Months
DueSep 12, 2049
Interest
Rate TypeAdjustable Rate
Change FrequencyMonthly

Tax Assessment & Valuation

The 2026 property tax bill for 520 Harrison Ave was $7,580, up 5% from the year before.

Source: Lewis And Clark County assessment roll, as of September 11, 2026

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
2026$7,580.00 (+5.03%)$1,070,400 (-)
2025$7,217.00$1,070,400$1,070,400 Land $206,500 Building $863,900
2023$8,283.00$760,000$760,000 Land $164,000 Building $596,000

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

Flood

FEMA maps place 520 Harrison Ave in Zone X, an area of minimal flood risk.

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

Wildfire risk around 520 Harrison Ave is low, with a 0.04% annual chance of wildfire.

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

Wildfire RiskLow
lower than 62% of the US · lower than 85% of Montana
Wildfire Likelihood0.04% 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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