Boutique residential developer East River Partners principal Joe Cohen tells us Brooklyn is the next frontier for family living. A condo owner might pay $4,200 annually in taxes in Park Slope, compared to $20k for a similarly valued home in Westchester. The schools in Brooklyn are top-notch, too, he says. It’s just that supply of two to three-bedroom condos hasn’t caught up. East River is developing eight condos at 1st Street and 6th Avenue across from PS 321 (sales will start in spring).

At East River’s forum on condos, Brooklyn resident Sarah Mencher and others had some low-cost, family friendly suggestions for East River’s JR Benton and architect Len Herczeg, including ditching some luxury ideas: Don’t extend wood floors from the rest of the apartment to the kitchen; it’s easier to wipe spilled milk from stone. Deep bathtubs are a no-go, too. Other worthy add-ons: extra insulation in common walls (neighbors and crying babies don’t mix), rounded counters and handles, and a ground-floor parking lot for strollers.