How to Value an Apartment in Poland: RCN, NBP Reports, Appraisal Reports, and Calculators (2026)
Listing prices from portals are ceilings, not values – true amounts from notarial deeds can be found in the real estate price register (RCN, FREE data since 2020) and quarterly NBP reports (listing vs transaction prices, in several cities). The official document is solely the appraisal report from a licensed appraiser (a regulated profession, online registry; valid for 12 months, ~500–1500 PLN) – valuing without authorization can incur a fine of up to 50,000 PLN. Additionally, what affects price, the three most expensive mistakes sellers make, and a valuation scenario from abroad; starting April 2, 2027, the government Portal DOM will be launched.