Residence hall is called Hotel Jarov I.E. – VSE. The address is: Konevova 196, Praha 3, but the reception entrance is from Jeseniova street around the corner (photo).
Location on Google maps:
Closest tram stop is called “Strážní”. It serves trams #1, 9 and 11.
Directions from Hlavni nadrazi (Main train station): Take tram number 9 from Hlavni nadrazi tram stop, direction Spojovaci. It is about 20 minutes to Strážní tram stop. Follow the main road and turn right at Jeseniova street (1 block from the tram stop). The residence hall entrance is on your left-hand side (photo).
Directions from bus station Florenc: Take Metro C line (subway) directly from Florenc, direction Haje. It is 1 stop to Hlavni nadrazi. Exit the metro and follow the directions form Hlavni nadrazi above.
You can take Uber (preferable, safer) or taxi (more risky, could be overcharged) from either station. Fare should be around 300 CZK ($15).