The world’s wealthiest dog is about to get a little richer. Worth nearly half a billion dollars, the German Shepherd named Gunther VI just listed the former Miami estate of the global pop star, Madonna, for $31.75 Million.

Situated in one of the most desired locations in Miami, the private estate sits on a 51,000-sq.ft lot with 100 feet of water frontage featuring lush landscaping, breathtaking open bay and city views, and a dock to soak in the South Florida sunshine. Spanning 8,400-sq.ft, with 9 bedrooms and 8.5 bathrooms, the residence is one of only six waterfront homes in the exclusive enclave.

To land the coveted listing, expert real estate agents Ruthie and Ethan Assouline with The Assouline Team at Compass had to undergo a rigorous “sniff test” and received a bark of approval from Gunther VI before entrusting them with the sale of the property.

Gunther VI inherited his vast fortune, and the Miami estate, from his grandfather Gunther IV who purchased it from the pop star over 20 years ago. The canine comes from a lineage that dates back 40 years and 6 generations. Gunther III inherited a multimillion-dollar trust when his owner the late German countess Karlotta Liebenstein died in 1992.

Since then, the humans who manage the canine’s estate have amassed a fortune worth nearly $500 Million and invested Gunther’s money to snatch up mansions and villas all over the world, from Miami to Tuscany (his primary residence), Florence and Milan—and invested in various sectors from real estate to publishing, sports teams, nightclubs and scientific research to uncover the secret to living a life of happiness.

According to the dictates of his legacy, Gunther’s bloodline have all lived a life full of love, joy and pleasure in the lap of luxury – with a group of handlers, maids and butlers to tend to the pampered pooch’s every need. The jet-setting dog travels by private jet, eats steak and caviar for dinner, owns multiple yachts and collector cars, and even purchased rare $1.1 Million white truffle at auction. In recent years, Gunther Rescue was founded as a benefit society to help animals in need.

While Gunther VI embarks on the next phase of his journey, the new owner of this Miami estate will have the perfect opportunity to restore or build new in a prime location with a unique history that no one else in the world can claim.

3029 Brickell Avenue is currently listed for $31.75 Million by Ruthie & Ethan Assouline with The Assouline Team at Compass.