The first property the Witnesses put up for sale was 360 Furman Street, which sold for $205 million in 2004. Now a luxury waterfront condo called One Brooklyn Bridge Park, it is home to a penthouse on the market for $32 million, one of the priciest listings in Brooklyn. The Bossert Hotel in Brooklyn Heights, which once hosted the Brooklyn Dodgers, and was used by the Witnesses as residences for staff members and out-of-town guests, sold for $81 million in 2012. It is being turned back into a hotel.

The Witnesses sold three properties in Dumbo, including a former Brillo factory on Water Street, for a total of $30.6 million in 2013; they are on their way to becoming luxury apartments. And six former factories near the base of the Brooklyn Bridge that sold for $375 million, also in 2013, are being renovated into chic offices for tech start-ups and trendy businesses like Etsy, WeWork and the jeweler Alexis Bittar.

The latest wave of offerings, which besides the headquarters, includes a residential building on the promenade in Brooklyn Heights and a massive parking lot in Dumbo, comes as the Brooklyn real estate market has surged. While these are not the last properties the Witnesses hold — there are about a dozen more — they are among the most coveted by developers. Dumbo is now one of the most expensive neighborhoods in Brooklyn. And developers are swarming.

“Everyone in the world will be taking a look at them,” said Tucker Reed, the president of the Downtown Brooklyn Partnership, a local development corporation. “The barrier to entry for a lot of those folks will be how high land values have gone. I’m sure they will fetch a very high sales price.” Mr. Reed estimated the value of the three properties being marketed as “somewhere between $850 million to $1 billion.”