Shonfield was born in London in 1954, was brought up in Chelsea and attended
St Paul's Girls' School. She was the youngest of the two children of Sir
Andrew Shonfield, a socialist economist of some note, and
Zuzanna, née Przeworska, a Polish–born historian and writer. Shonfield studied sociology at
Kingston Polytechnic and after she graduated took a job in the planning department of
Kensington & Chelsea Borough Council. Her upbringing was an important influence on her later work as an architect, with her strongly felt ideals being "largely the product of a highly cultivated, politically liberal and internationally orientated family". ==Architecture career==