Nestled in the luxurious Morrison House. The Grille has long been a favorite residents and visitors to Alexandria's charming Old Town neighborhood. Led by Chef Dennis Marron. Description The Grille at Morrison House is a Federal-style mansion situated in the heart of Old Town Alexandria, surrounded by history and grace, and within walking distance of the area's charming antique stores, art galleries, boutique shops, restaurants and museums. Morrison House itself is a AAA Four Diamond property and was named to Condé Nast Traveler's 2008 Gold List.