Methodology 2026
ScreenImmos analyses the public listings of more than 47 German property portals, deduplicated at the property level, and publishes aggregated asking-price statistics for condominiums — the national median is 3,969 €/m² from 201,328 active listings. These are offer prices, not notarized sale prices.
What data is this based on?
We aggregate public for-sale listings of condominiums from more than 47 German property portals (incl. ImmoScout24, Immowelt, Immonet, Kleinanzeigen). The same property advertised on several portals is deduplicated to a single object, so each apartment is counted once. Only listings with a plausible price per square metre (€500–€20,000) and living area (10–500 m²) enter the statistics.
Asking prices, not sale prices
Every figure is an asking price from a live or recent listing — not a notarized sale price. Asking prices typically run somewhat above the eventually notarized price; treat them as the supply side of the market. The methodological reference frame is, among others, the house-price index of the German Federal Statistical Office (Destatis).
How are the medians and percentiles calculated?
For each city we report the median and the 10th, 25th, 75th and 90th percentiles of the price per square metre, plus the median total price, living area and number of rooms. A city is published only when it has at least 500 active listings, to keep the sample reliable; a standalone English page is published only for cities with a much deeper sample (at least 1500 active listings) and a real year-over-year history.
How is the trend computed?
Monthly medians are smoothed with a rolling six-month average to reduce noise; the year-over-year figure compares the most recent smoothed window with the same window twelve months earlier. Raw monthly medians are always shown alongside the smoothed series in the data tables.
What this data does not do
We do not report rental yields, price-to-rent multiples or forecasts, and we publish no property-level valuation or undervaluation scores on these pages — only aggregated market statistics. For the German source page, see Methodik.