Listed: For $9.35 million, a penthouse in the former Hotel Agassiz

Listed at $9,350,000, a 4,072-square-foot penthouse condo in the former Hotel Agassiz is on the market for the first time since undergoing a $3.5 million renovation.

Located on the corner of Commonwealth Avenue and Exeter Street, the four-bedroom, 3.5-bath unit provides the luxury amenities of a concierge building with the historic beauty of a Back Bay brownstone.

High above the city, the unit offers four exposures with expansive views of the Citgo sign in Kenmore Square, Commonwealth Mall, and over the buildings onto the other side of Commonwealth Ave looking onto Boylston Street.

“The views are really spectacular,” said William Montero of the Mizner + Montero Team at Gibson Sotheby’s International Realty, who has the listing. “It definitely would be the top listing that I’ve ever had because it’s in a brownstone and completely gutted out and modernized. That’s what makes it so unique.”

Step off the elevator and into a foyer with massive skylights. Those skylights, two of which are remote-controlled, are repeated throughout the home, allowing natural light to stream in. The mix of striking modern light fixtures casts an elegant glow when night falls.

The bright living room is helmed by a custom-designed Statuario marble fireplace and is filled with windows overlooking the city. In the kitchen, new white oak flooring complements the 10-foot white Carrara marble island with seating, as well as the matching countertops and backsplash. There’s a high-end refrigerator and induction cooktop oven, as well as a butler’s pantry with a wine refrigerator.

Ideal for entertaining guests, the dining room lends a dramatic air with a French door entryway and a skylight at its 19-foot peak.

The primary bedroom suite is a comfortable space with two large windows and a bathroom that boasts a Bianco Carrara marble shower, marble double-sink vanity, and a cast-iron tub. The flooring is heated.

The building at 191 Commonwealth Ave. was originally a residential property known as the Hotel Agassiz. Envisioned by architects Weston and Rand and built in 1872, the property was designed for Alexander Agassiz, son of famed naturalist Louis Agassiz, and his brother-in-law Henry Lee Higginson, son of the founder of the Boston Symphony Orchestra. It was converted into condos in 1973.

Montero says that while the property has already drawn a diverse crowd of prospective buyers, the final buyer will probably be someone who wants modern amenities paired with a historic property.

“We’ve shown it to international buyers, to people that live in the suburbs like Weston and Wellesley. We’ve shown it to a bachelor. It’s whoever is in that price range,” said Montero. “It will be someone who isn’t interested in a full-service, hotel lobby-style building. Yes, there’s a concierge, but it’s still a brownstone. It’s for that person that really appreciates the Commonwealth Ave. and Back Bay and a renovated brownstone with so much history.”

See more photos of the property below:

191-commonwealth-ave-unit61-boston

Subscribe to the Globe’s free real estate newsletter — our weekly digest on buying, selling, and design — at pages.email.bostonglobe.com/AddressSignUp. Follow us on Facebook, LinkedIn, Instagram, and Twitter @globehomes.