Model Apartments Where Designers Run Wild

25MODEL1-superJumbo Model Apartments Where Designers Run Wild

The bedroom of the model unit for 432 Park Avenue, designed by Kelly Behun. The azure Calico wallpaper appears to be finished with a torn edge and long silvery drips. Credit Richard Powers

Compared with the tastefully neutral interiors of so many new condominium buildings, the latest model unit to open at 432 Park Avenue comes as a jolt.

The living room fireplace is finished in Venetian plaster incised with an Art Deco-inspired pattern and gold lines by Callidus Guild. The dining table is lit by a long chandelier of glass spikes by Jason Koharik. A random arrangement of tubular Apparatus light fixtures in various metal finishes and sizes punctuates a long hallway like stalagmites.

One bedroom has azure Calico wallpaper that appears to be finished with a torn edge and long silvery drips. The master bedroom has a wall-spanning oak-and-velvet asymmetrical headboard with geometric shapes inspired by the paintings of Frank Stella.

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The designer Jennifer Post used graphic wallpaper in a bedroom at a model unit at 520 West 28th Street. Credit Scott Frances

Conceived by Kelly Behun, an interior designer with a history of creating provocative art-filled rooms, the $40 million apartment (without the furniture), on the 92nd floor, borders on the outrageous.

“It was important for me that it not just be your typical model apartment,” Ms. Behun said. “I understand how they try to speak down the middle to a more common denominator, because you don’t want to offend. But that wasn’t interesting to me.”

It also wasn’t of interest to the developers.

“We really wanted to stand out,” said Jill Cremer, the vice president of marketing for Macklowe Properties, which developed the building with CIM Group. “We were ready for someone like Kelly to come and respect the architecture, but also bring an unconventional, unique style.”

Ms. Cremer and her colleagues aren’t alone. As developers face a glut of newly constructed apartments, both condominium and rental, some are turning to interior designers and letting them run wild with model units in an effort to differentiate their buildings from the rest.

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Matter played it cool at the Standish in Brooklyn. Note the pink and turquoise curtains. Credit Robert Granoff

Newly built inventory for sale in New York was up 19.6 percent in the first quarter of 2017, compared with the same period last year, according to the appraisal company Miller Samuel. At the same time, Citi Habitats New Developments expects 15,291 new market-rate rental apartments to become available this year in Manhattan and Brooklyn, following just 8,774 units last year.

“There’s a lot of competition,” said Jonathan J. Miller, the president of Miller Samuel. “So getting eyeballs on those projects is important.”

At 520 West 28th Street, the condo building designed by Zaha Hadid, the Related Companies tapped the interior designer Jennifer Post to furnish a $15 million apartment as a model unit. Ms. Post brought in Bernhardt Design lounge and dining chairs with mismatched upholstery, added graphic yellow-and-gray wallpaper to one of the bedrooms, and stocked the unit with eye-catching art, including an explosive geometric painting by Allan D’Arcangelo, and a sculptural free-standing penguin from Robert Kuo.

“I took a risk, and burst it with color, art and energy — it’s not tone-on-tone,” Ms. Post said. “It was a great opportunity to be given the freedom to make something people will talk about.”

25MODEL6-superJumbo Model Apartments Where Designers Run Wild

Ms. Post included an explosive geometric painting by Allan D’Arcangelo and a sculptural free-standing penguin from Robert Kuo in a living room at 520 West 28th Street. Credit Scott Frances

“We didn’t hold back anywhere in this building, in terms of creating something that’s never been seen before,” said Greg Gushee, an executive vice president of Related. “With the model, it’s the same thing.”

The development company DDG has been partnering with New York’s cutting-edge contemporary design stores to furnish its model units. The $2.435 million apartment used as a model unit at the Standish at 171 Columbia Heights in Brooklyn was designed by Matter, and includes a spidery copper pendant lamp with a pink-and-aqua glass shade by Bec Brittain, primitive oak dining stools and a table by Jamie Gray, and layered pink and turquoise living room curtains.

At XOCO 325, at 325 West Broadway in Manhattan, DDG invited Colony, a cooperative showroom for emerging designers, to outfit a $17.5 million penthouse. The resulting design includes textile wall hangings by Hiroko Takeda, a snaking 13-foot-long chandelier by Allied Maker and bold geometric tables by Fort Standard and Erickson Aesthetics.

“We try to push the envelope on design,” said Joseph A. McMillan Jr., the chairman and chief executive of DDG. “Having something that’s fully neutral or monochromatic is not something that we subscribe to.”

25MODEL4-superJumbo Model Apartments Where Designers Run Wild

The interior design firm BHDM broke the vanilla rule at a model unit for the Ashland in Brooklyn.Credit Adam Macchia/Gotham

For homeowners who have frequently been told they should rid their homes of personality in order to sell, model units with such expressive design elements may seem counter intuitive. Indeed, some real estate professionals urge caution.

“From a marketing perspective, there’s certainly something intriguing about bringing out a very aggressive design from a well-known or up-and-coming interior designer,” said Stephen G. Kliegerman, the president of Halstead Property Development Marketing. “On the other side of that coin is the conversation about not being so specific as to potentially turn off a buyer who might not be as creative, imaginative or liberal.”

To appeal to the largest pool of buyers, he said, “we recommend that developers use fine, elegant, but more neutral palettes.”

However, with so many properties on the market, some designers and developers say spirited model units can help make buildings more memorable.

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Ken Fulk went zigzag-mad at a studio in Henry Hall on West 38th Street. The bed curtains on the four-poster bed match the wallpaper. CreditEmon Hassan for The New York Times

“Through color and personality, and non-vanilla spaces, we’re setting the things for people to remember,” said Dan Mazzarini, a partner in the interior design firm BHDM, which designed five model apartments at the Ashland. The 585-unit rental building at 250 Ashland Place in Brooklyn offers studio to three-bedroom apartments ranging from $2,675 to $7,500 a month.

One of the model units has dazzling colors and patterns, including walls with painted trompe l’oeil paneling, powder-blue ceilings and counter stools, and a purply pink tie-dye rug.

“When renters are going around to all these new buildings, they’re seeing maybe 10 units a day and it’s hard to remember, from one white apartment to another, which they liked and why,” Mr. Mazzarini said. “So we built these memory points — it’s the unit with the pink rug, or the 12-foot sofa, or the hats on the wall.”

The interior designer Ken Fulk had a similar objective for three model units at Henry Hall, a 225-unit rental at 515 West 38th Street. From the Imperial Companies, the building has apartments ranging from studios starting at $3,350 a month to two-bedrooms starting at $6,995. Mr. Fulk equipped a studio with a four-poster bed with multicolor zigzag bed curtains installed in an alcove with matching wallpaper.

“Some people will love it, some people will hate it,” Mr. Fulk said. “But even if you don’t like it, you’ll remember it.”

Eric Birnbaum, a partner at Imperial Companies, added: “We wanted to take a position and create a brand. If you’re doing it right, in our minds, you’re going to offend certain people. But others will really like it.”