Active listing · MLS #58050206270

4326 Gratiot AVE, Port Huron

$3,500,000

Photo 1 of 4326 Gratiot AVE
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About this home

Welcome to an unparalleled lakefront estate offering 150 feet of breathtaking water frontage and over 6,500 sq ft of pure luxury living. Rebuilt from the foundation up in 2005, this magnificent 5-bedroom, 6 full & 1 half bath masterpiece was crafted with only the finest custom materials and unwavering attention to detail. From the moment you arrive, the gated entry, brick paver driveway, and generational baked clay roof signal that something truly extraordinary awaits. Step inside to a breathtaking dual staircase that sets the tone for the grandeur found throughout. Water views greet you from every room, with most windows soaring floor-to-ceiling. The main floor is finished in rich porcelain tile and designed for both everyday living and grand-scale entertaining. The chef's kitchen features a massive center island with secondary sink, gas cooktop, SubZero refrigerator, double oven, warming drawer, walk-in pantry, and custom cabinetry throughout. A two-way fireplace is shared with the living room. The formal dining room includes an adjacent wet bar with beverage cooler, separate ice maker, and glass sink. A second living room with a natural fireplace overlooks the water. The main floor also offers an office/library with French doors, a bedroom with private bath and sitting area, main floor laundry, and a stunning powder room. All bedrooms are generously sized with private en-suite baths and custom built-in closets. The primary suite is extraordinary, featuring a gas fireplace, sitting area, walkout tiled balcony with lake views, his & hers WICs with built-ins and laundry, and an attached private office. The spa-worthy primary bath showcases a Jacuzzi tub, tiled shower, his & hers sinks, and bidet toilet. The finished walkout basement adds 3,500 sq ft featuring a full second kitchen, bar, fireplace, home theater, workout room, living room, dining room, full bath, and two storage rooms, ideal for guests or multi-generational living. Laundry on all three levels. Outside, the inground pool with diving board and slide

The facts

Price$3,500,000
Beds5
Baths6 full, 1 half
Square feet9,495
TypeSingle family residence
SubdivisionJOHN W PORTERS ADD TO GRATIOT BEACH
CountyStClair
MLS #58050206270
Listed2026-05-04
Days on market22
Year built2005
Possession31–60 days after closing
BasementExterior entry, Finished, Full, Walkout
HeatingForced air, Natural gas
FoundationBasement
Garage spaces6.0
Water / SewerCity water & sewer
WaterfrontLake Huron
FireplaceYes
PoolIn-ground, Outdoor
Parcel number74065740014000
Listing officeReal Estate One Port Huron

Property taxes: the seller's bill vs. yours

This seller today You, the year after buying
Taxable value$861,415about $1,750,000
Yearly property tax$36,258about $72,292

Michigan caps a homeowner's taxable value until the home sells, then it resets. That's about $36,035 a year more than this seller pays. The assessor's state equalized value (SEV) is $1,253,800. Your taxable value resets to the SEV the year after you buy, and assessors usually raise it to about half the sale price. Estimate uses Port Huron's 2025 homestead rate of 41.31 mills and assumes you claim the homestead exemption. See Port Huron's full tax breakdown or run the uncapping calculator.

Ask Match Realty about this home

IDX provided courtesy of Realcomp II Ltd. via Match Realty LLC and MiRealSource, ©2026 Realcomp II Ltd. Shareholders. The accuracy of all information, regardless of source, is not guaranteed or warranted. All information should be independently verified. Listings refreshed 2026-10-25T23:19+00:00; refreshed at least twice daily.