SalaChic, I just checked with Frommer's, Fodor's and Trip ADvisor and all three are listing it as open. Could it be that they were refurbishing it and now it is now complete?
EUR100 to EUR180, Salamanca
The grande dame of Salamanca's hotels offers stylish Baroque lounges and refurbished yet old-fashioned oversize rooms, just steps from the Plaza Mayor. www.helcom.es/granhotel.
136 rooms. Restaurant, bar. AE, DC, MC, V.
Address: Pl. Poeta Iglesias 3, Salamanca 37001, Spain
I hope it is open because I love the location and was planning to stay there again on my next visit. The are close to a very nice little restaurant Meson Cervantes, I believe.