Hot interior design startup didn't have the usual beginnings.
FORTUNE -- Adi Tatarko planned big things for her Silicon Valley ranch-style house. But making them a reality proved an expensive -- and miserable -- experience. Tatarko’s friends described similar frustrations while renovating their homes, so she and her husband Alon Cohen began developing what would eventually become startup Houzz. Cohen understood the mutual need between buyers and sellers on eBay.com, where he was a senior director of engineering, and wondered why the $300 billion home improvement industry lacked a similar platform.