Discover River Retreat Lodge, a premier luxury lodge and hospitality property in Swan Valley, Idaho. Set on 5 landscaped acres adjacent to public land, this 8,740 SF property offers an exceptional combination of luxury, recreation, and investment potential. The main lodge features 9 bedrooms and 10 bathrooms, including six private ensuite guest suites, custom woodwork, lofted ceilings, and a stunning great room with vaulted ceilings, expansive windows, and a gas fireplace. A gourmet kitchen and butler's pantry make entertaining effortless. Additional accommodations include a 2-bedroom guest house and private studio cabin, offering flexibility for guests, extended family, staff, or rental income. Commercial zoning, a lodging overlay, and short-term rental allowances add significant versatility. Located minutes from world-class fly fishing on the South Fork of the Snake River, with hiking, hunting, snowmobiling, and mountain recreation nearby. Jackson Hole and Idaho Falls are also within reach. Whether you're searching for an Idaho fly-fishing lodge, luxury retreat, event venue, corporate retreat, investment property, or private family compound, River Retreat Lodge is a rare opportunity in Eastern Idaho.
Single-familyProperty Type
2007Year Built
5 acresLot Size
$315Price/Sq.Ft.
Listed by Haley Ochsner• LPT Realty LLC
Listed by James Hickey• Engel and Volkers Jackson Hole
In Swan Valley's most coveted corridor, the River Retreat Lodge delivers something increasingly rare: a turnkey property with the craftsmanship, capacity, and setting to function as a world-class fly-fishing lodge, corporate retreat, event venue, or private family estate -- you choose the vision. The main lodge is built to impress and designed to perform. Six ensuite guest rooms with custom woodwork, lofted ceilings, and private baths offer quiet, unhurried luxury. The great room earns its name -- vaulted ceilings, large windows framing the landscape, and a commanding gas fireplace create a space that transitions effortlessly from intimate dinners to large gatherings. . The gourmet kitchen, anchored by professional-grade appliances and a full butler's pantry, is built for volume without sacrificing elegance. Multiple decks extend the living space outward, where layered mountain ridgelines and manicured grounds fill every sightline. A separate 2-bedroom guest house and private studio cabin add flexibility for overflow guests, staff, or supplemental rental income. The location is quietly exceptional. Five landscaped acres border public land, placing vast backcountry directly at your doorstep. World-class trout fishing on the South Fork of the Snake River is minutes away, along with premier hiking, hunting, and snowmobile terrain. Jackson Hole is close enough for a dinner reservation -- far enough that the silence here is real. The vision is yours. The foundation is already exceptional.
SRMLS #1
Sep 24, 2025
Price Changed
$2,749,000
$315/sq ft
TBOR #25-818
Sep 23, 2025
Price Changed
$2,749,000
$315/sq ft
May 2, 2025
Listed
$2,900,000
$332/sq ft
PCTMLS #579195
May 2, 2025
Listed
$2,900,000
$332/sq ft
TBOR #24-2175
Aug 17, 2024
Listed
$2,900,000
$332/sq ft
TBOR #23-1752
Jul 31, 2023
Listed
$2,690,000
$308/sq ft
TBOR #21-3969
Dec 21, 2021
Listed
$3,500,000
$401/sq ft
Greater Lansing AoR #2128238
Oct 23, 2020
Sold
—
Oct 23, 2020
Sold
—
Apr 1, 2020
Listed
$1,050,000
$120/sq ft
Apr 1, 2020
Listed
$1,050,000
$120/sq ft
TBOR #18-1011
May 1, 2018
Listed
$1,395,000
$160/sq ft
TBOR #17-970
May 1, 2017
Listed
$1,695,000
$194/sq ft
SRMLS #114333
Nov 19, 2004
Sold
—
May 18, 2004
Listed
$219,500
$25/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$7,206 (−1.2%)
$7,500 + $1,668,450
$1,675,950
2024
$7,295 (−16.4%)
$7,500 + $1,668,450
$1,675,950
2023
$8,729 (+37.5%)
$40,000 + $1,628,070
$1,668,070
2022
$6,348 (−8.8%)
$96,000 + $2,035,970
$2,131,970
2021
$6,964 (+155.8%)
$45,000 + $1,210,940
$1,255,940
2020
$2,722 (−52.5%)
$93,500 + $956,837
$1,050,337
2019
$5,726 (−0.6%)
$79,000 + $917,030
$996,030
2018
$5,758 (+14.5%)
$83,500 + $812,120
$895,620
2017
$5,028 (+10.2%)
$93,000 + $665,334
$758,334
2016
$4,564 (−1.1%)
$93,000 + $665,334
$758,334
2015
$4,617 (−1.5%)
$93,000 + $587,748
$680,748
2013
$4,686
$93,000 + $606,152
$699,152
Public record
Beds
6
Baths
6
Stories
—
Lot width
—
Lot depth
—
Lot size
5 Acres
Year renovated
1977
Finished Sq. Ft.
7,398
Unfinished Sq. Ft.
—
Total Sq. Ft.
7,398
Year built
1977
Style
Single Family Residential
County
Bonneville County
APN
RPD00000228419
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Jul 13, 2026.
Climate risks
3/10 Flood Factor
Estimated 10-14% chance of a flood reaching the building in the next 30 years
3/10 Fire Factor
0.31% chance of being in a wildfire in next 30 years
2/10 Heat Factor
8 days above 88° expected this year, 21 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
3/10 Air Factor
3 unhealthy days expected this year, 3 days in 30 years
Provided by First Street
Historical weather
Irwin, ID • 83428
Average low and high temperatures (°F)
30
15
38
24
49
31
54
33
66
41
75
47
85
54
83
54
75
46
61
38
45
30
38
27
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
81/ 100
Very good sunlight
Sunscore
There appears to be minimal shading by surrounding buildings, terrain, and vegetation.
9.6 hrs
5.5 hrs
JuneDecember
Provided by Shadowmap
Redfin Estimate for 1591 Old Irwin Rd
There isn’t enough information to generate an accurate estimate at this time. Learn More
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Rental earnings
Est. $4,258 per month, based on comparable rentals
Tour for free, no strings attached
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