Excellent insulation - the walls include externally: plaster-tublin, glued with the tublin then plasterboard then polystyrene and final stage plasterboard / the front face is built with 15 cm thick wooden columns that ensure excellent insulation even in extreme weather temperatures in winter. Ceiling: Rapote Water-Electricity: Yes Floors: Wood (The Floor has excellent insulation - 5 layers: Concrete-stone-double plywood with Polystyrene in between - Laminate. Additional features: quiet, bright, seaside.