. >> 67-year-old jane baldwin is on the move making a big change. >> how's your health >> high health is perfect now that i've gotten my second hip replaced. >> she raised a family in wyoming and son is raising a family in oakland california and she wants to be close to help but not too close. >> that wouldn't work long term living with my son under the same roof. >> instead she built a tiny 400 square foot house in her son's backyard nicknamed a granny pod. the census bureau predicts one in five americans will be over the age 65 by 2030 and most will need some sort of assisted care. there isn't enough assisted living to meet demand. >> have you figured out where everything is going to go? >> not at all. >> architects discovered a new niche business, granny pods. laws in six states allow granny pods but in many cases they have to be temporary structures this one is a permanent one. because they are so expensive, if it's only temporary, it may not be for everyone. >> if people can age in place and age at home, it's much healthier and family is happier but it can be very expensive grann

. >> 67-year-old jane baldwin is on the move, making a big chan >> how's your health? >> my health is perfect now that i've gotten my second hip replaced >> reporter: baldwin raised a family in wyoming, but now his son is raising her own family in oakland, california. she wants to be close to help. but not too close. >> that wouldn't work long term living with my son under the same roof. >> instead, she built a tiny 400-square foot house in her son's backyard, nicknamed a granny pod. the census bureau predicts 1 in 5 americans will be over the age of 65 by 2030 and most will need some sort of assisted care. there isn't enough assisted living to meet demand. >> you figure out where everything is going to go? >> not at all. >> architects have discovered a new niche business, granny bods. $250,000, which is still cheap for bay area housings and seniors are often buying them to plan ahead. >> the adult son are liing in the unit. so when they're tired of maintaining their home and the large property that they're not using or climbing up the stairs, they'll move in there. an

. >> reporter: 67-year-old jane baldwin is on the move, making a big change. how's your health?my health is perfect i've gotten my second hip replaced. >> reporter: baldwin raised a family in wyoming but now her son is raising his own family in oecd, california, and she wants to be close to help but not too close. >> that wouldn't work long-term, living with my son under the same roof. >> reporter: instead, she built a tiny, 400-square-foot house in her son's backyard, nicknamed a granny pod. the census bureau predicts one in five americans will be over the age of 65 by the year 2030 and most of them will eventually need some sort of assisted care. there isn't enough assisted living to meet demand. >> have you figured out where everything's going to go. >> not at all. >> reporter: so architects have discovered a new niche business, granny pods. $250,000 is still cheap for bay area housing. laws in six states now specifically allow granny pods but in many be temporary structures. this one is a permanent one and because they're so expensive, if it's only temporary, it may not be f