Punane tn 21 is a 9-storey residential building completed in 1970 in Lasnamäe, with 288 apartments. Load-bearing structure: Prefabricated Concrete Panels (EHR register). The most common unit type is 3-room apartments (144 of them). Energy class D (per energy certificate).
Based on the Estiq valuation model and Land Board transaction registries, the building price benchmark is 2 486 €/m², which is approximately 3.9% below the Lasnamäe median (notarised apartment transaction median €2 588/m²). The building demonstrates high transaction liquidity for 2-room units, with a typical market value of around €107 395.