Sarah's father is a North London solicitor of Eastern European descent who moved to East London, and, 300 years ago, her mother's family moved from [[Tarragona]] in Spain,<ref name=":1" /> Italy and Morocco to Gibraltar, where they own a 150-year old perfumery.<ref name="Rose"/> She is the granddaughter of Gibraltar's former Minister for Economic Development and former independent MP in the Gibraltar Legislative Council [[Solomon Seruya]].<ref>{{cite web |title=UK's Solicitor General reminds Commons of her Gibraltarian roots in maiden speech |url=https://www.chronicle.gi/uks-solicitor-general-reminds-commons-of-her-gibraltarian-roots-in-maiden-speech/ |access-date=23 July 2024 }}</ref> Sarah Sackman was born and raised in [[East Finchley]]. She was privately educated atattended [[South Hampstead High School]],<ref name="hamhigh.co.uk">{{cite web |date=2 September 2013 |title=Lawyer Sarah Sackman to stand as Labour candidate for Finchley and Golders Green |url=https://www.hamhigh.co.uk/news/local-council/21379893.lawyer-sarah-sackman-stand-labour-candidate-finchley-golders-green/ |access-date=5 July 2024 |website=Ham & High }}</ref> where she was head girl.<ref>{{cite web |date=17 April 2015 |title=Labour's Sarah Sackman tipped as 'most likely to become PM' at school |url=https://www.hamhigh.co.uk/news/21371551.labours-sarah-sackman-tipped-most-likely-become-pm-school/ |access-date=9 July 2024 |website=Ham & High }}</ref> Sackman went on to study history at [[Queens' College, Cambridge]], where she graduated with a first-class [[Bachelor of arts|BA]] degree in 2006.<ref>[https://www.queens.cam.ac.uk/files/publicationFiles/the_record_2007ocr.pdf "Queens' College Record 2007"], p. 43. ''queens.cam.ac.uk.'' Retrieved 20 July 2024.</ref> She would go on to obtain a Graduate Diploma in Law with distinction at [[City, University of London]] and an LLM from [[Harvard Law School]] specialising in cities, housing, local government and poverty law.<ref>https://blogs.lse.ac.uk/lselondon/challenges-of-participation-and-representation-in-urban-development-sarah-sackman-barrister-at-francis-taylor-building-lent-term-seminar/</ref>
