Is the word paredes the same in Brazilian and European Portuguese?

Yes

The word "paredes" is identical in meaning, spelling, and grammar in both Brazilian and Continental Portuguese. The only difference lies in pronunciation.

In Brazil, the vowels are generally more "open" and clearly articulated. The unstressed "e" sounds are often pronounced as a clear /i/ or /e/, and the final "es" sounds like /is/. In Portugal, the vowels are "reduced" or "closed," meaning they are much more subtle and almost swallowed, making the word sound shorter or "clipped." Most notably, the final "es" in Portugal is pronounced with a "sh" sound (/ɨʃ/), whereas in Brazil it sounds more like "ees."

Brazilian Portuguese Examples

1. As paredes do meu quarto são brancas. (The walls of my/my room are white.)
2. Eu vou pintar as paredes da sala. (I am going to paint the living room walls.)
3. Essas paredes são muito finas. (Those walls are very thin.)
4. As paredes da cozinha estão muito sujas. (The kitchen walls are very dirty.)
5. As paredes do prédio são de concreto. (The building's walls are made of concrete.)

Continental Portuguese Examples

1. As paredes do meu quarto são brancas. (The walls of my room are white.)
2. Estou a pintar as paredes da sala. (I am painting the living room walls.)
3. Estas paredes são muito finas. (These walls are very thin.)
4. As paredes da cozinha estão muito sujas. (The kitchen walls are very dirty.)
5. As paredes do prédio são de betão. (The building's walls are made of concrete.)