We have secured hotel blocks at the following hotels, however we recommend checking out airbnb as well - there are a ton of beautiful rentals in the neighborhood. We don't recommend renting a car, the neighborhood is very walkable + cabs and ubers are readily available.
Hotel
NU Hotel
85 Smith Street Boerum Hill, NY 11201 (718) 852-8585
Hotel
The Tillary Hotel Brooklyn
85 Flatbush Avenue Extension Downtown Brooklyn, NY 11201 (718) 329-9537
House Or Rental
airbnb
There are a ton of lovely rentals in the neighborhood via airbnb. You can either plug in the venue address and search nearby, or search throughout Gowanus, Carroll Gardens, Cobble Hill and Park Slope.