Fifth Ave. penthouse opens bidding with 100% of proceeds benefiting conservation in Africa

Manhattan, NY Concierge Auctions has met and bidding is officially open at $8.25 million for a penthouse crowning the landmarked Sohmer Piano Building in the coveted Flatiron District. Offered in cooperation with Lawrence Treglia and Claire Groome of Sotheby’s International Realty and listed for $14.9 million, 100% of the proceeds from the sale will be donated to the Gorongosa Project, a pioneering conservation and community-development initiative in Mozambique. 

Bidding culminated live on 29 July at Sotheby’s New York as part of the firm’s ‘America 250’ sale, a marquee two-day event showcasing a curated collection of premier American real estate.

“This sale is extraordinary on multiple levels and represents a rare convergence of architectural significance and philanthropic purpose,” said Chad Roffers, CEO and co-founder of Concierge Auctions. “Bidding on one of Manhattan’s most iconic and irreplaceable residences is itself a rare opportunity—but knowing that every dollar of the purchase price goes directly toward protecting one of Africa’s most remarkable ecosystems makes this something genuinely unique in luxury real estate. Qualified buyers have a defined window to do something meaningful with this moment.”

“The response from prospective buyers has reflected what we’ve always known — this is a home that offers an experience as remarkable as its address,” said Treglia. “And the knowledge that this purchase will have a lasting impact halfway around the world has only deepened the sense of purpose surrounding this sale. The auction process has created exactly the kind of focused, competitive environment it deserves.”

Perched atop one of Fifth Ave.’s most architecturally significant buildings and situated directly adjacent to the iconic Flatiron Building, the completely renovated residence preserves the grandeur and character of its landmark pedigree. Designed by acclaimed architect Robert Maynicke in 1897, the Sohmer Piano Building remains one of New York City’s most recognizable architectural treasures.

The residence unfolds across expansive entertaining spaces illuminated by more than 40 oversized windows and an extraordinary 80-ft. greenhouse-style window expanse. Two grand foyers are connected by a striking circular baronial limestone staircase, creating a dramatic architectural centerpiece that anchors the home’s open-concept layout. Above, the property’s privately deeded roof deck and distinctive golden dome cupola provide 360-degree views of the city’s most celebrated landmarks, including the Empire State Building, Madison Square Park, and the Flatiron Building itself. The corner primary suite features three exposures, more than 35 linear feet of closet space, and a spa-inspired bath complete with a Waterworks soaking tub. Four additional bedrooms provide ample accommodations for guests, family, or dedicated office space.

Located in the heart of the Flatiron District, the property sits steps from Madison Square Park and some of New York City’s most acclaimed dining destinations, including Eataly, Union Square Cafe, Rezdôra, Hawksmoor, and Hillstone. Union Square’s major transportation hub is within a ten-minute walk, providing seamless access to the city’s cultural institutions, gallery districts, and neighborhoods.