“Builders simply can’t build homes fast enough to meet the remarkable demand,” says Caballero, whose HomesUSA is the broker of record for dozens of builders in four of Texas’ biggest markets. In its latest poll, marketing and research firm Zonda found that 30% of builders reported taking “weeks longer” to start work. Some builders have stopped selling altogether because they can’t keep up. Sullivan adds: “Wait lists are back!”Taking more deals than they can handle isn’t the only thing slowing builders down, though. That means there’s nobody around to approve plans and make on-site inspections, among the myriad other services builders require.