There are more than 16 Four Stars hotel in Dar es salaam...,here is the List.

Best Western Coral Beach Hotel 
BLUE PEARL 
Colosseum Hotel & Fitness Club 
DoubleTree by Hilton Dar es Salaam - Oyster Bay 
Jb Belmont Hotel 
Kunduchi Beach Hotel And Resort 
New Africa Hotel 
New Avon Hotel 
Protea Hotel Oysterbay 
Sea Cliff Court Apartments 
Sea Cliff Hotel 
SOUTHERN SUN 

HOLIDAY INN DAR ES SALAAM CITY CENTRE 
Paradise City Hotel 
PROTEA OYSTERBAY DAR ES SALAAM