Lavrentiev held a social contract

Lavrentiev held a social contract

Lavrentyev under a social tenancy agreement occupied a room of 10.8 square meters. m. in a two-room apartment. After the death of the employer of the next room (14, 5 sq. M.), He took her too.
The head of administration (landlord) and Karpushin, with whom a social hiring agreement was concluded for the vacated area, filed a lawsuit to evict Lavrentyev from the second room. The latter filed a counterclaim recognizing the right to use the disputed area.
In court, it turned out that according to the floor plan of the house, the rooms in the disputed apartment - adjacent and converted into isolated ones were arbitrarily.
What decision should the court make?

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