If youve watched Luca Guadagninos 2009 film I Am Love then youre familiar with the Rationalist architecture of Piero Portaluppi, whether you realize it or not. The mesmerizing Milanese manse Portaluppi designed in the early 1930s for the industrialist Necchi Campiglios serves as the luscious background for Guadagninos tale of familial intrigue. Its iconic veranda with crosshatch marble floors host impromptu meetings; its stone staircase allows for more than one dramatic entrance.Paloma Elsessers Brooklyn kitchen, designed by Gregory Rockwell Interiors, features a kitchen island made of green marble and walnut.Frank Frances StudioLuxury, as most people perceive it, doesnt really exist in this house. Its very severe, and [it] feels almost unmovable, like a piece of rock, Guadagnino told The New York Times in 2010. Trimmed in walnut, parchment, and, most memorably, richly hued stone, it is at once decorative and disciplined. For many of us these days, that is luxury defined.Massimiliano Locatelli's green marble sink and stool fit right into the Portaluppi palette.De Pasquale+MaffiniIts almost like Portaluppi painted with stone, says Hester Hodde of Gregory Rockwell Interiors, who chose Verde Alpi (what she calls the quintessential green Italian stone) for Paloma Elsessers Brooklyn kitchen island. That projectADs February 2025 cover storyseemed to cement something wed been seeing for a while: The Portaluppi palettedeep green, merlot red, and rich wood tones like walnut or rosewoodis having a moment.The powder room in this Milan apartment designed by Giampiero Tagliaferri is enveloped in rosewood and features a a custom sink of Verde Alpi marble.Photo: Billal TarightIn the pages of AD, this distinctly Milanese look has taken root. Consider the Verde Alpi sinks spotted in a Milan pied--terre conjured by Giampiero Tagliaferri for a young art collector, or Massimiliano Locatellis slick apartment in the same city. Meanwhile, the doorways trimmed in green marble in a Paris apartment by Luis Laplace recall a similar feature in the Portaluppi-designed Massimodecarlo Gallery, one of more than 100 buildings he lent his hand to around Milan.The sunroom at Villa Necchi in Milan, designed by Piero Portaluppi and built in the early 1930s.Cavan Images / GettyIn Abigail Turins San Francisco office, an Ettore Sottsass chair pulls up to a custom desk with a Verde Alpi marble top.Photo: Sang AnWe often incorporate deep, lacquered tones of brown, green, and red in our residential and commercial projects, explains Tagliaferri, who used this spread in his inaugural collection for Minotti, which debuted last year. These rich colors allow us to either emphasize an architectural element or make a space subtly recede, creating a sense of depth and mystery. In the aforementioned Milan apartment, for example, he used a dark burgundy hue on the doorways to make them disappear; meanwhile, at the Sant Ambroeus restaurant he designed in Aspen, he used slabs of green marble and a deep forest-hued color on the ceiling.The primary bath in this Tbilisi, Georgia, town house by Tinatin Kilaberidze features a primary bathroom with a burgundy marble floor.Photo: William Jess LairdKilaberidze stretched the green marble fireplace laterally to create a sense of visual weight in the all-white room.Photo: William Jess LairdIn the market, this color combo has been finding particular relevance in the bathroom, where countertops, hardware, and more are turning up the drama. Kallistas new Bezel faucet sports a green stone handle, for example, while Emtek debuted the Rosso Levanto lever in their Select Cabinet hardware line. Ann Sacks, which recently expanded into furniture, showcased a console table at KBIS this year in a rich, veined oxblood that feels straight out of a Milanese entryway. In Elsessers jaw-dropping primary bathroom, we see the look retooled for maximum impact, with slabs of red Rosso Francia marble paired with walnut millwork and a Benjamin Moore pistachio hue on the walls. Red and green together is such a traditional combinationbold, but also classicand it really lends this historical feeling, Hodde explains.An expressive green marble frames the doorways in this Paris pied--terre by Luis Laplace and Christophe Comoy. Art: Salvatore Emblema Sogetsu Foundation.Photo: Alice MesguichPortaluppi is an interesting reference for our studio, not only for his masterful use of geometry and rich materials but also for his ability to create spaces that feel both grand and intimate, Tagliaferri explains. Looking to his sophisticated yet playful approach as an example helps us craft interiors that feel immersive, elegant, and timeless."Italian alpine green marble wraps the bathroom in this Parisian pied--terre, which also features accents of wood and polished nickel.Get the LookMcGee & Co. Merlot Marble Coffee TableCl Tile Oval Jade Green Marble MosaicCabana Marbled Pencil Holder SetCabana Marbled Wastepaper BinPetal Verde Alps Marble Coffee TableRen FullerCandle holder pair in Rosso Levanto marble with brushed brass detailMade by BluMintStudios for the House of Harlow 1960 creator collabBed ThreadsPistachio 100% French Flax Linen Bedding Set