For sale

$17,900,000

Est. $105,860/mo —

•

10 ba

•

9,056

sq ft

671 Alpine Ln, Ketchum, ID 83340

About this home

Experience timeless elegance in this completely remodeled . 48-acre estate, masterfully designed by Mark Sikes. The breathtaking main residence showcases 5 bedrooms and 5.5 baths with a 2-car garage, complemented by a guesthouse with 2 additional guest suites, 2.5 baths, garage and private gym. Every detail exudes sophistication creating a seamless fusion of luxury, comfort, and modern convenience Main House: 6708 SF livable square feet Architecture by Janet Jarvis Remodeled in 2019 by Lee Gilman Interior design by Mark D Sikes, winter 2024 Five bedrooms, all with en-suite baths Large great room with wet bar, fireplace and multiple seating areas Formal dining room with custom banquette and fireplace Hardwood flooring & designer wool carpeting throughout Kitchen with attached sitting area & fireplace Butler's Pantry Cozy TV Room Mud room with custom ski "lockers" Two car attached garage Lower-level primary bedroom with spa-bathroom, large dressing room and private outdoor patio Temperature controlled wine storage room Lower level sitting room with wet bar -- opens to exterior courtyard Two powder rooms Gas forced air and air conditioning Guest House: 2436 livable square feet Two bedroom suites, plus loft office, kitchenette Large gym with sauna and bathroom Additional two-car attached garage Designer furniture negotiable. Exterior: 0.48-acre property in downtown Ketchum. Landscape architecture by Chase Goulay, BYLA Large outdoor patio, fire-pit and multiple dining & seating areas, perfect for entertaining. New Da Vinci roof. Heated walkways and driveway Sunny, quiet residential neighborhood Two blocks to restaurants, shopping and Ketchum Town Square

Single-familyProperty Type

1989Year Built

0.48 acresLot Size

$1,977Price/Sq.Ft.

4 car garageParking

Listed by Williams | Hendricks • Sun Valley Real Estate, LLC

Listed by Rixon & Cronin Rixon • Keller Williams Sun Valley Southern Idaho

Listing updated: Oct 14, 2026 at 11:31pm

Redfin checked: a few seconds ago

•Source:SVBOR #25-333918

Payment calculator

$105,860 per month

Principal and interest$98,905

Property taxes

$2,928

HOA dues

Home insurance

$4,028

Utilities

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Nearby open houses (1)

Around this home

Schools

K - 12
Preschool & daycare

Ernest Hemingway Elementary School

Public PreK-8 • Assigned • 0.3mi

7/10

Wood River High School

Public 9-12 • Assigned • 12.1mi

5/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Offer insights

671 Alpine Ln · $17,900,000

Strong offer

$17.5M and above

75% chance or better to win

Why $17.5M+ is a strong offer

DAYS ON MARKET

The average home goes pending in 41 days.

SALE-TO-LIST

Most homes are selling 8% below list price.

About offer insights

Property details

Parking

Parking/Garage Information
Has Garage
Has Attached Garage
# of Garage Spaces: 4
Parking Features: Attached, Heated Garage, Storage

Interior

Heating & Cooling
Has Cooling
Cooling: Central Air
Has Heating
Heating: Radiant Floor, Forced Air

Interior Features
Interior Features: Smart Thermostat, High Ceilings, Pantry, Wet Bar, Cathedral Ceiling(s), Walk-In Closet(s)
Appliances: Dishwasher, Dryer, Gas Oven, Gas Range, Refrigerator, Washer
Has Fireplace
Fireplace Features: Gas, Wood Burning

Room Information
Has Basement
Basement Details: Finished

Exterior

Exterior Features
Patio And Porch Features: Deck
Fencing: Fenced
Roof: Slate

Pool Information
Has Spa/Hot Tub

Building Information
Sq. Ft.: 9056.0
Above Grade Finished Area: 9,056
Levels: Two
Construction Materials: Stucco, Stone

Property Features
Security Features: Security System
Other Structures: Guest House

Property Information
Property Type: Residential
Property Sub Type: Single Family Residence
Raw Mls Property Sub Type: Single Family Residence

Lot Information
Lot Features: Landscaped, Views
Road Surface Type: Paved
Lot Size : 20908.8
Lot Size Area: 20,908.8
Lot Size Acres: 0.48
Zoning: K/LR

Financial

Tax Information
Tax Annual Amount: $35,133

Utilities

Utility Information
Water Source: Public
Utilities: Underground Utilities
Sewer: Public Sewer

Electricity and solar

View estimated energy costs and solar savings for this home

Internet

View available providers

Location

Location Information
Directions: From Main Street, take Sixth Street to Alpine Lane. Turn left on Alpine. The house will be on your left.
Subdivision Name: Ketchum Townsite

Community Information
Building Name: N/A

Public facts

Beds: 5
Baths: 6.0
Finished Sq. Ft.: 3,887
Unfinished Sq. Ft.: —
Total Sq. Ft.: 3,887
Stories: —
Lot Size: 0.48 acres
Style: Single Family Residential
Year Built: 1989
Year Renovated: —
County: Blaine County
APN: RPK0000047003A

Home facts updated by county records on Jun 25, 2026

Sale and tax history for 671 Alpine Ln

Sale History
Tax History

Date

Event

Price

SVBOR #25-333918

Jun 24, 2026

Price Changed

$17,900,000

$1,977/sq ft

Dec 10, 2025

Listed

$19,750,000

$2,181/sq ft

SVBOR #25-333919

Jun 24, 2026

Price Changed

$17,900,000

$1,977/sq ft

Dec 10, 2025

Listed

$19,750,000

$2,181/sq ft

+46

This incredible downtown estate offers luxurious living within steps from downtown Ketchum. Featuring a sophisticated five-bedroom main home and a stylish two bedroom guest house (complete with a full gym). Recently remodeled with beautiful interiors by designer Mark Sikes. Main House: 6708 SF livable square feet Architecture by Janet Jarvis Remodeled in 2019 by Lee Gilman Interior design by Mark D Sikes, winter 2024 Five bedrooms, all with en-suite baths Large great room with wet bar, fireplace and multiple seating areas Formal dining room with custom banquette and fireplace Hardwood flooring & designer wool carpeting throughout Kitchen with attached sitting area & fireplace Butler's Pantry Cozy TV Room Mud room with custom ski "lockers" Two car attached garage Lower-level primary bedroom with spa-bathroom, large dressing room and private outdoor patio Temperature controlled wine storage room Lower level sitting room with wet bar -- opens to exterior courtyard Two powder rooms Gas forced air and air conditioning Guest House: 2436 livable square feet Two bedroom suites, plus loft office, kitchenette Large gym with sauna and bathroom Additional two-car attached garage Designer furniture negotiable. Exterior: 0.48-acre property in downtown Ketchum. Landscape architecture by Chase Goulay, BYLA Large outdoor patio, fire-pit and multiple dining & seating areas, perfect for entertaining. New Da Vinci roof. Heated walkways and driveway Sunny, quiet residential neighborhood Two blocks to restaurants, shopping and Ketchum Town Square

SVBOR #96-193876

Jan 31, 1997

Sold

—

Jan 5, 1996

Listed

$2,800,000

$309/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$35,134 (+5.0%)

$4,817,200 + $5,581,973

$10,399,173

2024

$33,458 (+9.3%)

$4,817,200 + $5,111,137

$9,928,337

2023

$30,623 (−7.4%)

$4,014,336 + $4,539,734

$8,554,070

2022

$33,086 (−2.4%)

$4,014,336 + $4,539,734

$8,554,070

2021

$33,887 (−6.2%)

$3,307,123 + $3,724,362

$7,031,485

2020

$36,111 (+11.5%)

$2,979,390 + $3,298,864

$6,278,254

2019

$32,389 (+3.9%)

$2,482,825 + $2,638,864

$5,121,689

2018

$31,180 (+3.4%)

$2,085,573 + $2,643,765

$4,729,338

2017

$30,154 (+1.0%)

$1,787,600 + $2,643,765

$4,431,365

2016

$29,848 (−5.1%)

$1,708,180 + $2,643,765

$4,351,945

2014

$31,452

$1,562,873 + $2,643,765

$4,206,638

Public record

Beds

Baths

Stories

—

Lot width

—

Lot depth

—

Lot size

0.48 Acres

Year renovated

—

Finished Sq. Ft.

3,887

Unfinished Sq. Ft.

—

Total Sq. Ft.

3,887

Year built

1989

Style

Single Family Residential

County

Blaine County

APN

RPK0000047003A

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jun 25, 2026.

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

5/10 Fire Factor

4% chance of being in a wildfire in next 30 years

2/10 Heat Factor

9 days above 86° expected this year, 23 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

7/10 Air Factor

15 unhealthy days expected this year, 16 days in 30 years

Provided by First Street

Historical weather

Ketchum, ID • 83340

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

75/ 100

Good sunlight

Sunscore

This home receives average direct sun exposure in Ketchum. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.

9.1 hrs

4.2 hrs

JuneDecember

Provided by Shadowmap

Redfin Estimate for 671 Alpine Ln

$15,348,524

$2.6M under list price of $17.9M

Nearby comparable homes

The Redfin Estimate uses 5 recent nearby sales, priced between $575K to $4.8M.

SOLD MAR 31, 2026
$2,975,000 Last sold price
4 beds4 baths3,375 sq ft
6 Coyote Ct, Sun Valley, ID 83353
$1096/sq ft
smaller lot
10 years newer
SOLD JAN 15, 2026
$4,750,000 Last sold price
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33 W Lane Ranch Rd, Sun Valley, ID 83353
$887/sq ft
larger lot
4 years newer
SOLD MAR 19, 2026
$699,000 Last sold price
3 beds3 baths2,386 sq ft
133 Treasure Ln, Hailey, ID 83333-5105
$1684/sq ft
smaller lot
5 years newer
SOLD AUG 20, 2026
$575,000 Last sold price
2 beds1 bath1,996 sq ft
301 S 4th Ave, Hailey, ID 83333
$1689/sq ft
smaller lot
43 years older
SOLD AUG 17, 2026
$675,000 Last sold price
3 beds3 baths1,792 sq ft
951 Winter Fox Ln, Hailey, ID 83333
$1600/sq ft
smaller lot
15 years newer

Rental earnings

Est. $7,364 per month, based on comparable rentals

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Early Access listings

EARLY ACCESSCOMPASS COMING SOON

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Details provided by SVBOR and may not match the public record. Learn more.

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Payment calculator

Affordability tools

See this home in person

Nearby open houses (1)

Around this home

Schools

Lifestyle

Offer insights

Property details

Sale and tax history for 671 Alpine Ln

Public record

Climate risks

Historical weather

Sun exposure

Redfin Estimate for 671 Alpine Ln

Early Access listings

Nearby similar homes

New listings for sale in 83340

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