'You Finish' Mega Mansion – Yours For Only $29 Million

After more than a decade of building, a long-awaited mansion in Grosse Ile is for sale at $29 million, still unfinished.

The custom-built home, located on East River Road, Grosse Ile, MI., features 16,855-square feet, eight bedrooms, 19 bathrooms (eight full), a pool inside a conservatory, theater and an aquarium.

It was listed on Zillow in early September by Signature Sotheby’s International Realty of Birmingham for $29 million.

John C. Bates, chief executive officer of Heidt­man Steel, a Toledo company that has supplied steel for the three Detroit automakers, and his wife began planning the dream home in 2002. At the time, the house was being built for the blended family of eight children and a few grandchildren.

But with the home still not finished, and the family pretty much grown, they no longer need such a big house, so they have decided to sell it.

The structure is completely done. The new owners just have to add their own finishing touches.

From the Zillow website:

8 beds 11.5 baths 16,855 sq ft

For Sale

Est. Mortgage


This majestic European Manor Home with its old world distinctive designs and grandeur embodies timeless architecture with interior designed for contemporary living. Newer construction began in 2007, has extensive features proposed with this construction all with Island ambiance on the Detroit River. The homes construction has halted and property is awaiting its new buyer to finish it to its distinctive grandeur. Just some of the characteristics include extensive custom plaster on walls, moldings and details. All bedrooms have either balconies or terraces. Five car garage, 8 bedrooms, 8 bathrooms, 9 lavatories, heated flooring, mostly upper level walnut wood flooring, marble and limestone details, 300 foot Tanglewood Conservatory prepped for a pool and cascading water feature. Nine fireplaces. The extensive details will be provided upon request. All appointments will require proof of funds. All measurements are approximate. Buyers Agent To Verify All Information.
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If interested in this house, please contact Zillow through the link provided in the story above. Thank you.

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