Nestled in one of Helena's most walkable neighborhoods, 631 Rhode Island Street puts the best of the Queen City right at your doorstep. Whether you're lacing up for a morning hike on the Mount Ascension trails or strolling downtown for dinner, you'll love the effortless access this address affords. The home itself is cozy and manageable a 1-bedroom, 1-bathroom layout that's easy to maintain and full of everyday livability. But what truly sets this property apart is everything beyond the front door. A detached 2-car garage provides ample room for vehicles, gear, and hobbies, while an additional outbuilding opens up even more possibilities for storage, a workshop, or creative space. The real story here is the lot. Generous in size and brimming with potential, this property is a rare find for investors, owner-occupants looking to generate income, or buyers thinking long-term. The space is well-suited for adding an accessory dwelling unit (ADU) or a second dwelling, (subject to City of Helena Approval) — giving you the flexibility to build equity, house extended family, or create a rental opportunity in a high-demand market.
Active
$495,000
631 Rhode Island St, Helena, MT 59601
1beds
825sqft
Single Family Residence
Built in 1885
0.36 Acres Lot
$460,900 Zestimate®
$600/sqft
$-- HOA
What's special
Additional outbuilding
- 111 days
- 294
- 7
Zillow last checked:
Listing updated:
Listed by:
Joseph M Mueller 406-431-3034,
RE/MAX Of Helena,
Josh LaFromboise 406-439-3873,
RE/MAX Of Helena
Source: MRMLS,MLS#: 30071913
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 1
- Bathrooms: 1
- Full bathrooms: 1
Heating
- Baseboard, Electric, Forced Air, Gas
Appliances
- Included: Range, Refrigerator
- Laundry: Washer Hookup
Features
- Basement: Unfinished
- Has fireplace: No
Interior area
- Total structure area: 825
- Total interior livable area: 825 sqft
- Finished area below ground: 0
Property
Parking
- Total spaces: 2
- Parking features: Garage
- Garage spaces: 2
Features
- Patio & porch: Rear Porch, Enclosed, Porch
Lot
- Size: 0.36 Acres
- Features: Level
- Topography: Level,Sloping
Details
- Parcel number: 05188831421070000
- Special conditions: Standard
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Single Family Residence
Materials
- Foundation: Stone
- Roof: Metal
Condition
- New construction: No
- Year built: 1885
Utilities & green energy
- Sewer: Public Sewer
- Water: Public
- Utilities for property: Electricity Connected, Natural Gas Connected
Community & HOA
HOA
- Has HOA: No
Location
- Region: Helena
Financial & listing details
- Price per square foot: $600/sqft
- Tax assessed value: $435,798
- Annual tax amount: $3,178
- Date on market: 6/19/2026
- Listing agreement: Exclusive Right To Sell
- Road surface type: Asphalt
Estimated market value
$460,900
$438,000 - $484,000
$1,360/mo
Price history
| Date | Event | Price |
|---|---|---|
| 6/19/2026 | Listed for sale | $495,000$600/sqft |
Source: | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $2,582 -33.8% | $425,300 +2.3% |
| 2024 | $3,903 +0.5% | $415,900 |
| 2023 | $3,884 +53.7% | $415,900 +79.3% |
| 2022 | $2,528 -1.7% | $231,900 |
| 2021 | $2,573 +3.9% | $231,900 +3.9% |
| 2020 | $2,476 -0.2% | $223,200 |
| 2019 | $2,481 -7.8% | $223,200 +12.3% |
| 2018 | $2,690 +6.1% | $198,700 |
| 2017 | $2,536 +32.7% | $198,700 +2.5% |
| 2016 | $1,911 -3.1% | $193,800 |
| 2015 | $1,972 +25.9% | $193,800 +127.4% |
| 2014 | $1,566 +5.8% | $85,224 +6.2% |
| 2013 | $1,480 +3% | $80,256 +7.2% |
| 2012 | $1,437 | $74,897 |
| 2011 | -- | -- |
| 2010 | -- | -- |
| 2009 | -- | -- |
| 2008 | -- | $79,700 |
| 2007 | -- | $79,700 |
| 2006 | -- | $79,700 |
| 2005 | -- | $79,700 |
| 2004 | -- | $79,700 |
| 2003 | -- | $79,700 -0.4% |
| 2002 | -- | $80,000 |
| 2000 | -- | $80,000 |
Find assessor info on the county website
Monthly payment
Est. payment






