Here are the priciest Miami-Dade listings to linger into 2017

They make a big splash once listed, but South Florida’s priciest listings are often the most difficult to sell.

From Alan Potamkin’s Coral Gables estate – once listed for a whopping $67 million – to two spec homes on North Bay Road, these properties have been sitting pretty for more than 365 days. Check out The Real Deal’s ranking of the five biggest lingering listings in Miami-Dade.

1 Casuarina Concourse and Alan Potamkin

1 Casuarina Concourse | Listed: May 2015 | Now asking: $47.5M

After listing the massive, 3.6-acre waterfront estate at 1 Casuarina Concourse in Gables Estates for $67 million last year, auto magnate Alan Potamkin chopped the asking price to $47.5 million in September.

Built in 2000, the nearly 21,000-square-foot, three-story home includes a main floor with both a chef’s and separate family kitchen, a formal dining room with a 1,500-bottle wine room, a family room, corporate office with private bath, children’s playroom, three powder rooms and a guest bedroom and bath, according to the listing. Additional amenities include an elevator, three fireplaces, two built-in saltwater aquariums and an aviary.

Coldwell Banker’s Jill Eber and Jill Hertzberg, who Potamkin hired to sell the property last year, are the listing agents.

Emilio and Gloria Estefan, 1 Star Island Drive, The Jills

1 Star Island Drive | Listed: February 2015 | Now asking: $37M

Gloria and Emilio Estefan’s “Nena’s Villa” first hit the market for $40 million, but was reduced earlier this year.

The 1.34-acre property at 1 Star Island Drive consists of a main house, built in 1940, and a guest house built in 1995. The main villa has 4,747 square feet, with four bedrooms and five bathrooms. The 2,661-square-foot guest house has three bedrooms and three bathrooms.

The Jills also have this listing, which offers 240 feet of bayfront and views of downtown Miami.

When they do sell the property, the Estefans won’t be far. They live in another mansion on the exclusive island retreat, at 39 Star Island Drive. “They own a beautiful property on two acres, on Star Island,” Eber said last year. “This was a guest house for them that they were not using any more.”

960 Harbor Drive in Key Biscayne

960 Harbor Drive | Listed: August 2015 | Now asking: $36M

Listed in 2015, then de-listed and re-listed in August, this Key Biscayne home has 720 feet of waterfront, and more than 67,000 square feet of land. The mansion features a 16-seat private theater, tennis/basketball court, salt water pool and spa, private beach and two docks. It also has “plenty of room to land your helicopter,” according to the listing.

Turks and Caicos-based YOYOT Realty Inc. has owned the property since 1998. Wilhelm Nash of the Keyes Company has the listing.

6440 North Bay Road

6440 North Bay Road | Listed: October 2015 | Asking: $30.5M

New York real estate tycoon Peter Fine’s first spec home is still on the market at its original asking price. The 15,000-square-foot mansion, at 6440 North Bay Road, has seven bedrooms, eight bathrooms, a 2,500-square-foot roof deck, an expandable garage for up to six cars, 12-foot tall sliding glass walls, and 100 feet of frontage on the bay.

Darin Tansey of the Tansey Group at Douglas Elliman is the listing agent. TRD first reported on the listing in May 2015, but it officially hit the market a few months later in October.

4730 North Bay Road in Miami Beach

4730 North Bay Road | Listed: May 2015 | Asking: $29.95M

A Miami Beach property owner and investor has been ready to let go of his neoclassical-style estate on North Bay Road since the spring of 2015.

Peter J. Neary owns the 11,622-square-foot home at 4730 North Bay Road, with 130 feet of water frontage, a keystone deck, 55-foot salt-system pool, a 50-foot Ipe wood dock and a covered waterfront cabana. Neary paid $6.1 million for the lot in 2012, and before that it was owned by David and Gita Galbut.

The Jills also have the listing for the new seven-bedroom mansion.

TRD Researcher Eda Kouch contributed to this report.