Replacement of wooden intermediate floors in old buildings

The buildings built at the beginning of the 19th century have historical value and are unique objects. Most of them are in poor condition. One of the options for the reconstruction of such buildings is the restoration of an object without changing its volume and facade but with the redevelopment of premises, replacement of ceilings, roofs and possibly other elements. It will create a layout of the internal premises that meet the regulatory requirements of residence while maintaining the historical appearance of the building.