Translation:Fortunately, he pays for the apartment's renovation.
renovation, so it seems, is the technically correct word when it comes to buildings. Oxford Advanced Learner’s Dictionary, 8th edition
reno • vate BrE / renəveɪt / NAmE / renəveɪt / reno • va • tion / BrE renəveɪʃn ; NAmE renəveɪʃn / noun [ uncountable , countable , usually plural ] buildings in need of renovation renovation work There will be extensive renovations to the hospital. It does say,usually plural when used as a countable noun.
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