Virginia Andreescu Haret was one of the first women-architects in Romania. Born Maria Virginia Andreescu in 1894 in Bucharest, she lost her mother at the age of nine, growing up at the house of her uncle, a renowned Romanian painter Ion Andreescu. In 1928, Andreescu married construction engineer Spiru I. Haret (1892-1970), changing her name to Andreescu Haret. The couple had a son, who became an engineer.

In 1919, Andreescu Haret became the first woman to graduate from the Higher School of Architecture in Bucharest, receiving accreditation as an architect the same year. While studying architecture, Andreescu Haret simultaneously studied painting at the National School of Fine Arts with the painter Ipolit Strâmbu. In 1920, Strâmbu organized an exhibition of her drawings, some of which were then sold to the Historic Preservation Commission. The profits from the sale allowed Andreescu Haret to fund an eighteen-month study at the Academy of Fine Arts in Rome in 1922-23. While in Rome, she also studied archeology and vernacular construction techniques. In 1922, she also visited the Kingdom of Serbs, Croats and Slovenes, publishing a report about its architecture.

Upon her return to Romania in 1923 and until her retirement in 1947, Andreescu Haret worked as an architect at the Technical Service of the Ministry of Public Education. A prolific architect, in the course of her career, she designed over 150 buildings, 40 of which were completed, among them residential and public buildings and monuments. Andreescu Haret became the first female general inspector in architecture, and represented Romania at international congresses in Brussels, Moscow, Paris, and Rome. 

Andreescu Haret worked in a variety of architectural styles, including different versions of Romanian national revival, Neoclassicism, and modernism. Among her first projects were educational buildings, including Gheorghe Şincai High School (1924-1928), and an extension of Cantemir Vodă National College (1926-1929). In the 1920s and the 1930s, she also designed the building for the Society for Low-Cost Housing on the Rosetti Square (1927) and multiple other private houses and residential buildings in Bucharest. She was also involved with the design of the administration buildings for Bukarest-Băneasa airport. Andreescu Haret also designed both houses, in which her family lived in Bucharest (on the Spatarulul Street and on the Lascar Catargiu Boulevard).

In addition to her architectural practice, Andreescu Haret was a historian of Romanian architecture. She published a monograph on the building of the National Theater in Bucharest, and, with architect Nicolae Ghika-Budești, authored a four-volume publication Evoluţia Arhitecturii în Muntenia şi Oltenia (The Evolution of Architecture in Muntenia and Oltenia, 1927-1936), illustrated with her water-color drawings.