The Upper East Side mansion of Vincent and Teresa Viola is pending sale for $80 million. If it goes through, it will smash the standing record for priciest townhouse sale in Manhattan with more than $25 million to spare. The sale is off-market.

The Violas purchased the townhome in 2005, for the relatively moderate sum of $20 million. The couple then embarked on the massive renovation. When the dust settled, the 19-room, four-story residence emerged as an eye-popping travel-log of grandiose surface, citing Louis XIV, renaissance Italian, and other styles, with gilding, inlay, bookmatched stone, and ornate details a-plenty.

The Violas spent over three years transforming the home; the cost of the renovation has not been divulged. But bathrooms defined by hunks of solid malachite and onyx should at least indicate the location of the financial ballpark. The Violas had a crack at trying to sell the home for $114 million in 2013 and early 2014; the mansion was listed for $98 million later in 2014, before dropping out of sight entirely, until this month.

The home theater alone is a story unto itself. A 12’ screen, and balcony seating that extends into the floor above, give an idea of the scale involved; the décor and design are borrowed from a classic golden-age New York cinema. Other standout rooms include the trattoria-style kitchen, the library with spiral staircase, second-floor balcony, and ceiling frescoes, and the main hall, which features incredibly ornate inlaid wood floors, and a fireplace of Brazilian travertine. There is a pool on the lower level.

Vincent Viola is a billionaire investor with a net worth north of $2 billion; his ownership of the Florida Panthers helped disqualify him from consideration for the position of Secretary of the Army under the current administration. Teresa Viola is president of interior design firm Maida Vale Designs; she also owns the Teresa Viola Racing Stables.