Here is just a handful of the many examples I could have picked. However, it might be worth mentioning that more recent writers would have lived in blocks of flats and therefore have a less attractive backdrop for their creativity.
Nicolae Labis (1935 -1956) showed astounding promise as a poet but died far too young. He wrote his most famous poem ‘The Death of the Deer’ in this childhood home in Suceava county. From muzeedelasat.ro
Lucian Blaga (1895-1961) was one of our most famous poets, originally from Transylvania, as you can see from the different style of architecture of his parental home. From viziteazaalbaiulia.ro
Novelist Mihail Sadoveanu (1892 – 1952) wrote about a third of his works in Falticeni, the small town where he grew up, although this is not the parental home, but a house he built after WW1. From tripadvisor.com
When Sadoveanu became one of the best-loved Romanian writers, he was able to afford this house in Iasi. After the Communists came to power, it was nationalised and is now the Museum of Romanian Literature. From muzeulliteraturiiromane.ro.
Cezar Petrescu (1892-1961) was a popular novelist in the period between the two world wars, and was thus able to afford to buy this house in the mountain resort of Busteni in 1937. From tripadvisor.com.au
Nicolae Iorga (1871-1940) was a writer and historian, who later became a politician and was assassinated by the far-right Iron Guards. He spent every summer at his house in Valenii de Munte for over thirty years. From visitprahova.ro
Mihai Codreanu (1876-1957) is now virtually forgotten, but was a popular poet (known mainly for his sonnets) and journalist. His career is all the more astonishing since he was almost completely blind from the age of about 30. He was given the piece of land by the Iasi city council, upon which he built this house, known as Villa Sonnet. From planiada.ro