Co-owner and chief designer of Firmdale Hotels (including NYC’s Crosby Street Hotel), the British 58-year-old has created a hospitality portfolio that’s won awards and drawn celeb guests like Daniel Craig and Keira Knightley.

Project highlights: Kemp and husband Tim Kemp are currently handling the Whitby Hotel on West 56th Street, which will feature a downstairs theater, 40 suites and 90 rooms.

Design philosophy: Distinguished by bright hues, textural layering and pattern mixing, Kemp’s style is “colorful and carefree rather than too serious,” she tells Alexa. “A bit of wit is good in an interior, especially when bringing together disparate elements.”

Bring it home: Kemp recently launched a furniture collection with Anthropologie named Folkthread, as well as a bespoke bath line called Rik Rak. In addition to her china collection for British brand Wedgwood, Kemp will publish her second book, “Every Room Tells a Story,” in November.

firmdalehotels.com

An acolyte of design heavyweight Stephen Sills, the 32-year-old launched his own firm in 2013 and has already worked on projects for the likes of hoteliers Andre Balazs and Ian Schrager.

Project highlights: Amoia recently reimagined the DeLorenzo Gallery on Madison Avenue, casting it with limestone floors and plaster walls, nodding to a French-deco motif. He’s also finishing work on Itz’Ana, a resort in Placencia, Belize,which opens late next year.

Design philosophy: Amoia’s work cannot be easily categorized, though it does exhibit French art-deco influences roughed up with natural materials (stone, cement) as well as modernist pieces. “My mentor Stephen such an incredible way of mixing time periods and pieces that influenced me,” says Amoia, “so I’ll mix Italian looks, for instance, with a washed-out beachy piece of furniture or tribal sculpture.”

Bring it home: Amoia is collaborating with DeLorenzo on a furniture-and-lighting collection that will launch in September; it includes sconces and floor lamps in rare minerals. He also collaborated with Itz’ana on a line of locally made furniture that will debut this fall. Amoia also has plans to collaborate on a home accessories line for Alex Eagle of Soho House in Berlin and London’s  Kensington.

samuelamoia.com

Design cred: After studying fashion at the Rhode Island School of Design, the 41-year-old switched paths to enroll in architecture school at Columbia and UCLA. He launched his own firm, Architecture at Large, in 2006, quickly becoming a favorite of the fashion set — designing Ford Models’ New York office and the Baccarat store on Madison Avenue.

Project highlights: He designed the recent reincarnation of Asia de Cuba in Noho, as well as Nike’s 45 Grand gym in Soho. He’s currently at work on a residential project in the English countryside, though it will be anything but traditional (think: spiraling pool slide).

Design philosophy: His work achieves an avant-garde aesthetic: lines are jagged, asymmetry abounds and proportions are toyed with. “I like to explore different techniques and styles that can’t be applied across all my work,” de Cárdenas tells Alexa, “The goal is always for contemporaneity and to be ahead of the curve.”

Bring it home: The designer is working on a yet-to-be-named fashion collaboration this fall, as well as a “book-like project” for 2016.

architectureatlarge.com

Design cred: Since taking over as president of her late father Mark Hampton’s eponymous design practice in 1998, the 43-year-old has become a fixture on Architectural Digest’s AD100 list list of best designers and architects, as well as best-of lists from House Beautiful and New York magazine.

Project highlights: Hampton is now juggling several projects in New York and recently completed a renovation of the Quogue Club, a 14-room boutique hotel on the East End of Long Island.

Design philosophy: While she endeavors to create an individualized look for clients, Hampton admits an affinity for a formal, neoclassic style after tackling her biggest project: her own apartment. “Designers can be slow to commit to an aesthetic for their own homes,” she says, “but I’ve come to terms with the fact that if I want plaster friezes on my walls, then I’ll have them!”

Bring it home: Borrow Hampton’s look via her lighting collection with Visual Comfort, furniture by Hickory Chair and accessories by Maitland-Smith. She also wrote a new afterword for her father’s book “Mark Hampton on Decorating,” which will be reissued this fall.

markhampton.com