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
$468,800 Zestimate®
$600/sqft
$-- HOA
What's special
Additional outbuilding
- 16 days |
- 1,010 |
- 17 |
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
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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 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
$468,800
$445,000 - $492,000
$1,551/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 | -- | $80,000 |
Find assessor info on the county website
Monthly payment
Est. payment$--/mo
Payment breakdown
Explore the cost of this home by adjusting the details. Changes won't be saved.All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
See how much you could borrow to make a competitive offer.
Climate risks
Neighborhood: 59601
Nearby schools
GreatSchools rating
- 8/10Jefferson SchoolGrades: PK-5Distance: 0.5 mi
- 6/10Helena Middle SchoolGrades: 6-8Distance: 1.2 mi
- 7/10Helena High SchoolGrades: 9-12Distance: 1.2 mi
A local agent can set up tours, give advice and negotiate with sellers.
A local lender can help you make sure your offer is ready when you are.
- Montana
- Lewis and Clark County
- Helena
- 59601
- 631 Rhode Island St






