Rick Van Osten, executive vice president of the league, said Mr. Haber was named Builder of the Year in 1989. He also was president of the New Jersey Builders Association in 2000, an official there confirmed.
The death, Van Osten said, "was an extreme shock to us."
Mr. Haber earned his bachelor's degree at Franklin and Marshall College in 1976 and a master's in business administration at Drexel University.
Van Osten said Mr. Haber "did a marketing project for us on recruiting remodelers and home improvement contractors, to join the Builders League."
Mr. Haber's latest development effort was the 400-home Neighborhoods of Cedar Creek in Egg Harbor City.
The municipality acquired the property through tax foreclosure over six years, Mr. Haber said in a 2013 Inquirer interview.
In 2009, the city chose him as the developer, he said, "even though I was from Camden and not Atlantic County."
At the Builders League, Van Osten said that "the project in Egg Harbor was something that he was really excited about. . . ."
"He just asked me to come see his job about a week ago, because he was proud of it."
In a March interview with The Inquirer, Mr. Haber said that the prolonged periods of subfreezing temperatures this year had made excavating foundations impossible and "made it difficult to even see the sites."
Bruce Paparone, a South Jersey builder, said in a statement that Mr. Haber "was president of the BLSJ when I was vice president in 1992. So I got to know him fairly well, and learned a lot from him as we worked together. . . .
"Brad was a very creative guy with an outgoing personality. He knew how to make people feel good about themselves and bring out the best in you.
"He was also very creative in the homes he built. They usually had a modern or current flair to them as well as a great land plan. . . .
"Brad will be missed in our industry. His jovial personality and visionary outlook will not be easily replaced."
Mr. Haber is survived by his wife, Dean, daughter Amara, and a sister.
A visitation was set from 1:15 p.m. Tuesday, May 20, at Platt Memorial Chapels, 2001 Berlin Rd., Cherry Hill, before a 2 p.m. funeral service there. Interment is to be in Locustwood Memorial Park, Cherry Hill.
Donations may be sent to Habitat for Humanity at www.habitat.org.
Condolences may be offered to the family at www.plattmemorial.com.
Inquirer staff writer Alan J. Heavens contributed to this article.