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$480,000

770 Mather Avenue, Ishpeming MI 49866, 50214723

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Overview

  • Updated On:
  • July 16, 2026
  • 4 Days On Market
  • 5 Bedrooms
  • 3.5 Bathrooms
  • 3,309.00 ft2
  • 1964 Year Built

About The Property

The Koenig House – Designed by Winston Elting Architects, Chicago (1963) Offered on the open market for the first time since it was commissioned in 1963, The Koenig House is a rare opportunity to own an architecturally significant five-bedroom, four-bath Mid-Century Modern residence designed by Winston Elting Architects of Chicago for Dr. Harry and Debbie Koenig. Completed in 1964, the home was purchased directly from the original owners in 2021 through a private sale and has never before been publicly offered. Nestled on a beautifully wooded lot and a half in Ishpeming’s desirable 8th Addition, the property offers an exceptional blend of privacy and convenience. Just 20 minutes from downtown Marquette via US-41 and within walking distance of Birchview Elementary School, the home is surrounded by mature trees with direct access to the groomed cross-country ski and mountain biking trails of the Al Quaal Recreation Area. Step outside to miles of year-round trails leading to Teal Lake, creating an unmatched Upper Peninsula lifestyle. Designed to embrace its natural surroundings, The Koenig House showcases the clean lines, warm materials, and seamless indoor-outdoor connection that define classic Mid-Century Modern architecture. Soaring vaulted ceilings, a dramatic floor-to-ceiling brick gas fireplace, an open catwalk, and a spacious loft create bright, inviting living spaces. Extensive built-in cabinetry and custom closets reflect the thoughtful craftsmanship and functional design of the era. A detached two-story, two-car garage includes a heated upper-level workshop and traditional sauna, offering outstanding space for hobbies, projects, storage, or outdoor gear. The current owners have made significant investments to preserve the home’s architectural integrity while improving long-term performance. Updates include new Marvin windows on the east elevation; new cedar siding with upgraded OSB sheathing and Rockwool insulation on the east and north elevations; professionally sealed foundation walls with new French drains; a fully encapsulated and insulated crawl space by K2; a new sewer line from the street to the home (2025); plus a new concrete driveway and garage door. Several bedrooms and bathrooms have also been tastefully updated while respecting the home’s original design. For buyers who appreciate exceptional architecture, additional custom-milled cedar siding is available and negotiable with the sale, providing valuable material for future preservation. More than simply a home, The Koenig House is an important piece of Upper Peninsula architectural history—a meticulously maintained Mid-Century Modern residence where timeless design, exceptional craftsmanship, and an extraordinary natural setting come together. Opportunities to acquire homes of this caliber are exceptionally rare.

Posted: July 13, 2026 at 10:54pm

Listing updated: July 16, 2026 at 12:12am

Listed by: BENJAMIN ARGALL 906-250-2874, NEXTHOME SUPERIOR LIVING

Listing Agent Phone & Email: 906-214-4267, ben@argallrealestate.com

MLS#:

Source: MiRealSource

Originating MLS: Upper Peninsula Assoc of Realtors 

Property Details

Property Details

Property Id: 305430
Price: $480,000
Property Size: 3,309.00 ft2
Property Lot Size: 0.39 ac
Bedrooms: 5
Bathrooms: 3.5
Posted: July 13, 2026 at 10:54pm
Year Built: 1964
Basement: Interior Entry
Full Bathrooms: 3
Half Bathrooms: 1
Bathroom Total: 3.5
Waterfront Features: None
Cooling System: None
Heating System: Natural Gas, Hot Water
Stories: 2
Architecture: Contemporary
Flooring: Hardwood
Garage Spaces: 2
School District: Ishpeming Public School District
Lot Features: Treed, City Lot, Platted, Sidewalks, Walk to School
Lot Area (sq ft): 16988.4
Lot Dimensions (ft): 112.5 x
Township: Ishpeming
Parking Total: 2
Price Last Updated: July 13, 2026 at 12:00am
Water: Public
Frontage Type: Road
Frontage Length (ft): 112
Road Surface Type: Paved
Construction Materials: Wood Siding
Above Grade Finished Area (sq ft): 3309
Utilities: Cable Connected, Electricity Connected, Natural Gas Connected, Sewer Connected, Water Connected
Sewer: Public Sanitary
Bathroom 1 Area (sq ft): 56
Bathroom 1 Length (ft): 8
Bathroom 1 Level: First
Bathroom 1 Width (ft): 7
Bathroom 2 Area (sq ft): 32
Bathroom 2 Length (ft): 8
Bathroom 2 Level: First
Bathroom 2 Width (ft): 4
Bathroom 3 Area (sq ft): 56
Bathroom 3 Length (ft): 8
Bathroom 3 Level: Second
Bathroom 3 Width (ft): 7
Bedroom 1 Area (sq ft): 240
Bedroom 1 Length (ft): 16
Bedroom 1 Level: First
Bedroom 1 Width (ft): 15
Bedroom 2 Length (ft): 12
Bedroom 2 Level: First
Bedroom 2 Area (sq ft): 180
Bedroom 2 Width (ft): 15
Bedroom 3 Level: Second
Bedroom 3 Area (sq ft): 156
Bedroom 3 Length (ft): 12
Bedroom 3 Width (ft): 13
Bedroom 4 Area (sq ft): 156
Bedroom 4 Length (ft): 12
Bedroom 4 Level: Second
Bedroom 4 Width (ft): 13
Bedroom 5 Area (sq ft): 143
Bedroom 5 Length (ft): 11
Bedroom 5 Level: Second
Bedroom 5 Width (ft): 13
Dining Room Area (sq ft): 260
Dining Room Length (ft): 20
Dining Room Level: First
Dining Room Width (ft): 13
Family Room Area (sq ft): 576
Family Room Length (ft): 32
Family Room Level: First
Family Room Width (ft): 18
Kitchen Area (sq ft): 270
Kitchen Length (ft): 18
Kitchen Level: First
Kitchen Width (ft): 15
Living Room Area (sq ft): 276
Living Room Features: Floor: Carpet
Living Room Length (ft): 23
Living Room Level: Lower
Living Room Width (ft): 12
Master Bedroom Level: First
Tax Exemptions: PRE/Homestead Exemption
Zoning: SR - Single Family Residential
Listing Agent Name: BENJAMIN ARGALL
Listing Agent Email: ben@argallrealestate.com
Listing Agent Phone: 906-250-2874
Realty Office: NEXTHOME SUPERIOR LIVING
Realty Office Phone: 906-214-4267
Listing ID: 50214723
Listing AOR: Upper Peninsula Assoc of Realtors
Source: MiRealSource
Days On Market: 4
Last Updated: July 16, 2026 at 12:12am

Amenities and Features

Other Features
Cathedral/Vaulted Ceiling
Deck
Dishwasher
Dryer
Fireplace: Gas
Gas Water Heater
Has Cooling System
Has Fireplace
Has Garage
Has Heating System
Has HOA
Has Home Warranty
IDX
Laundry: Lower Level
New Construction
Parking Features: Garage
Private Pool
Range/Oven
Refrigerator
Sidewalks
Washer

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$2,461.05
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  • Principal and Interest
  • Property Tax
  • HOA fee
  • Private Mortgage Insurance
$ 1,861.05

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Disclaimer

Property ID - 305430

IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed.

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