Sara Martins Marques dos Santos Madruga da Costa was born in Madeira on 15 September 1978. She graduated in Law from the Faculty of Law of the University of Lisbon and did a postgraduate degree in Law on Spatial Planning, Urbanism and Environment from the Faculty of Law of the University of Coimbra. She is continuing to study at the Lisbon university. She began working as a lawyer in 2003, mainly covering the area of real estate. More recently, she has taught a course at the Instituto Superior de Administração e Línguas in Madeira. She is married to Carlos Eduardo Pereira Madruga da Costa.