Standing next to a palm tree in the Edwardian Room at the Plaza Hotel’s 100th birthday party Monday night, actor Matthew Broderick, wearing a Valentino suit, recalled a visit to the hotel when he was a teenager.

“I was here when they shot ‘Arthur,’ ” he told The New York Sun. “My high school buddy’s brother was a production assistant and he got us in. We went into every inch of the place. The ballroom was empty. We caught a glimpse of Dudley Moore,” the late star of the Oscar-winning 1981 comedy.

At the time, Mr. Broderick said, he was attending the Walden School and had acted in some school plays. He hadn’t considered acting professionally, but this experience helped push him in that direction. “It was exciting to be at a film shoot,” Mr. Broderick said.

It was also exciting to be at the 100th birthday party for the Plaza Hotel, the biggest party the Tshuva family — who own Elad Properties, which purchased the Plaza in 2004 and has redeveloped the legendary hotel into a hotel and condominium — has ever thrown. It was even bigger than their four daughters’ weddings in Israel, which each had 1,200 guests.

“I told my mother today, ‘You look more excited than you were at my wedding,’ ” one of the daughters, Gal Nauer, said. Ms. Nauer and her firm have served as interior architects for the Plaza’s $400 million refurbishment.

But hubbub on family birthdays is another matter: “My husband, he likes quiet on his birthday,” Haya Tshuva, wearing an Armani suit purchased on Madison Avenue, said of her husband, family patriarch Isaac Tshuva.

Monday night, however, Mr. Tshuva seemed content amid the din and spectacle: Eight very bright and beautiful minutes of fireworks, more than an hour of uplifting music performed by the Orchestra of St. Luke’s, and the happy chatter of guests treated like royalty.

During the outdoor party on both sections of Grand Army Plaza, which was blanketed in red carpet, guests were offered their own mini-bottles of Moet & Chandon champagne, served with straws, and an array of hors d’oeuvres served from silver trays, including trout mousse, smoked salmon, and cherry tomatoes with caviar. It was like arriving at the Oscars, without the nuisance of the celebrities stopping to be photographed and interviewed.

The Tshuva family got to enjoy it all in part because they hired the right event designer, magician and logician David Monn, to orchestrate the affair. Mr. Monn is one of those rare talents who can dream big and then pull off every detail. One can only imagine the permits required to launch 4,000 fireworks off a 100-year-old building in Midtown Manhattan, a sight that not only the invited guests, but all of New York could enjoy from the surrounding streets.

So what will the next big Tshuva party be? Mr. Monn is already working on the opening of the hotel’s ballroom (necessarily a smaller celebration, since the ballroom only seats 400).

Of course, there are also the future bar and bat mitzvahs and weddings of the Tshuva clan; Mr. Tshuva has 13 grandchildren. The youngest is 2, the oldest is 18. One grandson, Avichai, 11, would like the actress who played the Plaza’s most redoubtable resident in a series of television movies, Sofia Vassilieva, to attend his bar mitzvah — the “Eloise at the Plaza” star will be about 16 then.

agordon@nysun.com