I built an annex for my daughter and her new family in my backyard. It's the perfect way of living.

Sacha Warren built an annex in her backyard for her daughter.

Sacha Warren

• Sacha Warren, 49, bought her dream house outside London in 2001 and knew she'd never leave.
• When her daughter got pregnant, Warren worried about them finding a house in the expensive area.
• Warren built an annex in the backyard where her daughter lives with her partner and baby.

This as-told-to essay is based on a conversation with Sacha Warren from Surrey, England. Warren's financials have been verified by Business Insider.