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Historic Duplex with Sunroom
For Sale
$369,500

205 N Excelsior Avenue, Butte, MT 59701

ResidentialIncome, Butte, MT

Property Size4,890 SF
Lot Size0.07 Acres
Price / SF$75.56
Days on Market191

Property Features for 205 N Excelsior Avenue

General Information

Property type Residential Multi Family
Property subtype Duplex
Zoning description Call Listing Agent for Details
Rooms Basement
Parking features Offsite
Patio and Porch features Porch
Interior features SunRoom
Appliances Dryer, Range, Refrigerator, Washer
Directions Head north on Excelsior and cross over Park Street continue on Excelsior it will be on the left side of the street.
Subdivision 10BWM - Butte - West of Montana
Standard status Active
APN 0001359000
Lot size 0.07 Acres

Taxes and HOA fees

Tax Year 2025
Tax Description "EMMET ADD, S14, T03 N, R08 W, BLOCK 2, N 33'2"" OF LTS 14-16"
Tax Annual Amount 2990
Legal Description "EMMET ADD, S14, T03 N, R08 W, BLOCK 2, N 33'2"" OF LTS 14-16"

Utilities

Sewer type Public Sewer
Heating system Baseboard
Water source Public

Amenities

paid laundry area
storage
sunroom

Building Details

Year built 1905
Floors in Building 2
Number of units 2
Flooring type Hardwood
Building materials Brick
Listing Agency: Century 21 Shea Realty · Century 21 Real Estate
Listed By: Jennifer Shea · License #BRO-13804
Added: Feb 26 Changed: Aug 27 Last Checked: Sep 5 at 5:06PM
MLS# 408953

Copyright © 2026 Big Sky Country MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

Investment Insights

Based on property information with market context.

Built in 1905, this brick duplex contains approximately 4,890 square feet across two residential units. Each unit includes wood flooring, a living room, three bedrooms, a full bathroom, formal dining space, and a kitchen. The upper residence adds an enclosed sunroom. A basement provides laundry space, storage, and a utility room, while the property is served by public water and public sewer. Heating is provided by baseboard systems, and appliances include ranges, refrigerators, washers, and dryers.

The property occupies a 0.0682-acre lot at 205 N Excelsior Avenue in Butte. Its setting places the duplex near the hospital, Montana Tech, and historic uptown Butte. The two-unit layout supports residential income use, with the potential for an owner to occupy one residence while leasing the other, subject to applicable requirements.

Key Highlights

  • Approximately 4,890 sq. ft. across two residential units
  • Built in 1905 with brick construction and hardwood flooring
  • Each unit includes three bedrooms, a full bathroom, formal dining room, and kitchen

Financial Insights

Estimated NOI and Cap Rate

NOI = area × lease_rate × (100 − vacancy) / 100 × (1 − expense_ratio). Net Operating Income — what the owner takes home each year before mortgage payments and income tax. Effective rent (asking rent minus vacancy losses) minus operating costs (taxes, insurance, maintenance, management).
NOI / Yr
$32,593
Cap rate = NOI / list price × 100. Capitalization rate — annual return on a fully cash purchase, before financing. NOI divided by price. Higher means more income per dollar invested, but usually also more risk or older condition. 5–8% is typical for stabilized commercial property; double digits often signal distressed deals.
Cap Rate
8.82%
Suggested Prices Based on Cap Rates Cap rates vary significantly by property type, market, and asset quality. Typical U.S. stable-market ranges: Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+) Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand) Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically) Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher) Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk) Self-Storage — 5.5% to 7.5% Medical Office — 6.0% to 7.5% Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term Rules of thumb: Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%). Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C. Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI. Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$651,860 $651.9K
Cap Rate 7%
$465,614 $465.6K
Cap Rate 9%
$362,144 $362.1K
Market Conditions
NOI Build-Up for 4,890 SF Vacancy — income lost from leasable area expected to sit empty during the year, subtracted from gross rent. EGI (Effective Gross Income) — gross rent minus vacancy losses, the realistic income before paying operating costs. OpEx (Operating Expenses) — recurring costs to operate the property (property tax, insurance, utilities, maintenance, management); excludes financing and capital improvements. NOI (Net Operating Income) — income a property generates after operating costs but before financing and taxes.
Gross rent
$49.9K $10.20/SF
− Vacancy
−$3.3K −$0.68/SF
EGI
$46.6K $9.52/SF
− OpEx
−$14.0K −$2.86/SF
NOI
$32.6K $6.67/SF
Area
Silver Bow County, MT
Vacancy
6.65%
Lease Rate
$10.20 /SF/Yr
Expense Ratio
30.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates Cap rates vary significantly by property type, market, and asset quality. Typical U.S. stable-market ranges: Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+) Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand) Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically) Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher) Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk) Self-Storage — 5.5% to 7.5% Medical Office — 6.0% to 7.5% Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term Rules of thumb: Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%). Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C. Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI. Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$651,860
Cap Rate 7%
$465,614
Cap Rate 9%
$362,144

Alternative Uses

Best Use
Multifamily LT 5
$465.6K
$407.4K – $543.2K (±1% cap)
NOI $32,593 @ 7.0% cap · market cap 8.82%
Second Best
Apartment 5plus
$428.8K
$375.2K – $500.3K (±1% cap)
NOI $30,015 @ 7.0% cap · market cap 8.12%
Theoretical Best
Office A
$1.07M
$932.5K – $1.24M (±1% cap)
NOI $74,601 @ 7.0% cap · market cap 20.19%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

Current Use

Duplexes

Suggested Use

Top Pick Electrical Service Auto Parts Store HVAC Service (Bike/Boat/Book/etc) Store Storage Facility Carpet & Flooring Store

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Lease Details

2
Residential units

Location Intelligence

Trade Area within ½ mile

695
Businesses Nearby

Demographics for 59701, MT

33,937
Population
16,834
Households
2
Avg Household Size
42
Median Age
27%
College-Educated
94%
High-School Grad
509.7 sq mi
ZIP Area
67
Density / Sq Mi
$56,799
Median Household Income
$34,793
Median Earnings
$811
Median Rent
$219,200
Median Home Value

Market

Vacancy Rate% for Multifamily in West region

7% 2022
7.8% 2023
8.6% 2024
8.6% 2025
Rey
Questions? Ask Rey
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Frequently Asked Questions

What type of property is this?
Duplex - Two residences feature three bedrooms, formal dining rooms, kitchens, wood floors, and basement storage.
Where is this duplex located?
The property is located at 205 N Excelsior Avenue Butte, MT.
What is the asking price?
The asking price for this property is $369,500.
What are key features of this property?
This property features: Approximately 4,890 sq. ft. across two residential units; Built in 1905 with brick construction and hardwood flooring; Each unit includes three bedrooms, a full bathroom, formal dining room, and kitchen
More about this property
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