It's always great to hear old Beirut houses being renovated, rather than being demolished and replaced by skyscrapers. Beirut-based Annabel Karim Kassar Architects, which is founded by Annabel Karim Kassar, has launched the restoration of a 19th century Ottoman mansion in Gemmayze's Rue Gouraud street. The methodology of the project's design and renovation will be shared with the public in a temporary exhibition inside the mansion during Beirut Design Week, which is taking place between…