Is pretty much a mansion. The church secured a $1.6 million mortgage on the house and took out a loan for $10 million dollars to give him a line of credit:

A two-week FOX News investigation, however, has uncovered where Wright will be spending a good deal of his time in retirement, and it is a far cry from the impoverished Chicago streets where the preacher led his ministry for 36 years.
FOX News has uncovered documents that indicate Wright is about to move to a 10,340-square-foot, four-bedroom home in suburban Chicago, currently under construction in a gated community.
[…]
Documents show Wright sold the property to his church, Trinity United, in December 2006, with the proceeds going to a living trust shared with his wife, Ramah.
The sale price for the land was just under $308,000, about $40,000 less than Wright’s original purchase two years earlier.
Public records of the sale show Trinity initially obtained a $10 million bank loan to purchase the property and build a new house on the land.
But further investigation with tax and real estate attorneys showed that the church had actually secured a $1.6 million mortgage for the home purchase, and attached a $10 million line of credit, for reasons unspecified in the paperwork.

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Also, Glenn Beck interviewed Anthony Bradley of Covenant Theological Seminary on black liberation theology. Justin Taylor has the video and other related links.