Boulder, MT Duplexes for sale

Updated: Oct 24, 2025

Two Homes on Large Lot

508 & 510 W 1st Avenue, Boulder, MT 59632

$433,900

0.59 AC lot

0.585‑acre property with two homes plus space for additional development
Main house: 3 bed, 2 bath, 1,836 SF, permanent foundation and spacious fenced yard
Main house updates include new flooring in the kitchen, master bathroom, and master bedroom
Second home: tenant‑occupied 3 bed, 1 bath mobile home with upgrades including new membrane roof, new carpet, and a new deck (not on a permanent foundation)
Detached oversized 2‑car garage for parking and/or storage

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Based on your search, we've compiled 5 Potential Opportunities for your consideration. Besides 1 Active listings in Boulder, MT, we suggest exploring several alternatives: 4 properties in Nearby Cities

Opportunities in Nearby Cities

Here are 4 Similar properties we found in Nearby Locations for your consideration.

Two-Home Income Property

1712 George Street, Butte, MT 59701

$299,000

0.11 AC lot

Two leased residences on one parcel provide diversified rental layouts for an owner-operator or investor.

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Residential Income Duplex with Workshop

812 N Ewing Street, Helena, MT 59601

$429,000

0.29 AC lot

Two-bedroom, one-bath home plus heated, insulated shop with mechanic’s pit and upstairs access on an R-3 lot.

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Two-Unit Residential Income Duplex

1044 S Wyoming Street, Butte, MT 59701

$230,000

0.08 AC lot

Duplex on one lot with a front brick home and detached studio-style back house, both suited for rental occupancy.

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Side-by-Side Condo Duplex

2406 Sunlight Cir, Helena, MT 59601

Contact for pricing

Two side-by-side condo units were converted from a duplex in 1985; one is vacant while the other has been rented.

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Boulder, MT Duplexes Market Trends and Statistics

Explore 1 duplexes for sale in Boulder, MT on our real estate platform. These investment opportunities span a total of 0 square feet of properties for sale, with an estimated market value of $433,900.

Sale prices for duplexes in Boulder, MT start at $433,900, averaging $433,900, and reaching up to $433,900 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.

Neighborhood	Average Price
59632	$433.9K

Neighborhood

Average Price

59632

$433.9K

Boulder, MT Duplexes for Sale

508 & 510 W 1st Avenue, Boulder, MT 59632