461 Dean is full of firsts. 

The 32-story residential tower is the first modular, or sectional prefabricated, high-rise in the world. It’s also the first apartment building to open in Pacific Park Brooklyn, a 22-acre mixed-use community that links Fort Greene, Clinton Hill, Park Slope and Prospect Heights.  

“461 Dean is a testament to innovation and creativity, built in Brooklyn and like nothing else on the market,” MaryAnne Gilmartin, president and CEO of developer Forest City Ratner Cos., said in a statement. “We are excited that our vision for this cutting-edge property has come to life, and that residents will be able to experience modern living in Brooklyn’s most dynamic new neighborhood.”

461 Dean was designed by SHoP Architects, which also built the neighboring Barclays Center. The 363 apartments are compromised of 149 studios, 166 one-bedrooms and 48 two-bedrooms. Rents for studios start at $2,450, one-bedrooms $3,125 and two-bedrooms $4,750. Leasing began on Tuesday. 

Half of 461 Dean’s apartments are for low- or middle-income households, and 84,000 people applied for the 181 units through the city’s affordable housing lottery over the summer. 

Amenities at 461 Dean include a 24-hour doorman, fitness center, yoga and dance studio, rooftop terrace, game room, and a washer and dryer in each unit. 

Each unit was constructed at Brooklyn Navy Yard and transported via truck to the Pacific Park Brooklyn space at Dean Street and Flatbush Avenue, which was developed by Greenland Forest City Partners.

“Offsite construction reduces environmental impact and offers a creative way forward for the construction industry to address the intersecting needs of cities today,” said SHoP principal Chris Sharples.