Sõpruse pst 231 is a 5-storey residential building completed in 1968 in Mustamäe, with 60 apartments. Load-bearing structure: Prefabricated Concrete Panels (EHR register). The most common unit type is 2-room apartments (40 of them). Energy class C (per energy certificate).
The Estiq AVM baseline for apartments in this building is 2 502 €/m², approximately 6.6% below the Mustamäe median (notarised apartment transaction median €2 679/m², 2026 Q3, n=404). The typical unit (2-room, 44 m²) comes to about €115 060.