Jean-Michel Gathy and his studio Denniston Architects, which is frequently tapped for Aman locations, restored and converted the 25-storey tower to create 82 suites and 22 residences.
To create a feeling of quiet and relaxation in the middle of New York City, elements like glass soundproofing were combined with a muted, minimalist colour and material palette throughout the building.
Gold details were also added throughout as a nod to its ornamental spire.
"Every detail of the design effortlessly contributes to Aman New York's aura of rarefied calm," said Aman Resorts.
Oak, walnut and cinnamon woods are used for finishes, floors, doors and custom furnishings, while bronze, brass, and stainless and blackened steel add warmth.
Japanese influences are found in elements including textured stone floors laid in a pattern reminiscent of woven rattan baskets.
Each suite features a large mural inspired by the 15th-century Japanese artwork Pine Trees by Hasegawa Tōhaku.
Pairs of pivoting louvre doors with backlit rice-paper panels can be angled by guests to open up or contain the spaces within their rooms.
These doors envelop the bathrooms, which are fitted with free-standing oval bathtubs, marble rain showers and twin vanities.
All of the guest rooms and residences also have a working fireplace to help occupants feel cosy.
Hotel guest amenities include a 20-metre swimming pool on the 10th floor, a fitness centre, and a 650-square-metre outdoor terrace that can be covered with a retractable glass roof.
An atrium on level 14 hosts a series of giant paper and bamboo sculptures by Peter Gentenaar that float between four stone columns.
Of the two restaurants within the building, Italian-influenced Arva is arranged around a central open kitchen and surrounded by floor-to-ceiling wine cabinets.
Meanwhile, Nama serves traditional Japanese cuisine and features a hinoki wood counter for omakase-style dining, as well as staggered ceilings and pendant lights influenced by the work of American architect Frank Lloyd Wright.
The Aman Spa is currently open to the hotel guests and Aman Club members and is spread over three storeys and 2,320 square metres.
"Active spaces including the pool and fitness centre feature light timbers and grey tones, while passive spaces where treatments are enjoyed at the very core of the building are more nurturing, with curves and warmer hues," said the Aman Resorts team.
Founded by Indonesian hotelier Adrian Zecha in 1988, the Swiss-headquartered company operates 34 properties in 20 countries.
All are known for offering privacy and seclusion, and each is designed as a unique experience that pays homage to its location.
Others in the portfolio include Amanyangyun near Shanghai, which was created by moving an area of threatened historic houses and forest 800 kilometres, and Aman Kyoto, named Hotel of the Year at the AHEAD Asia 2021 awards.