J. Köleri tn 23 is a 4-storey residential building completed in 1940 in Kesklinna, with 11 apartments. Load-bearing structure: Timber Frame (EHR register). The most common unit type is 3-room apartments (7 of them). Energy class E (per energy certificate).
The Estiq AVM baseline for apartments in this building is 4 058 €/m², approximately 8.9% above the Kesklinna median (notarised apartment transaction median €3 727/m², 2026 Q3, n=408). The typical unit (3-room, 61,6 m²) comes to about €240 302.