Methodology
Interpreting the observed listing market responsibly.
The methodology combines multi-source listing data, time-based snapshots, local benchmarks and visible quality information. The goal is traceable conversation context—not a complete representation of the entire market.
Working definition
What “observed listing market” means.
The observed listing market comprises property listings visible through the available data sources at relevant points in time and suitable for the analysis in question.
It does not automatically include every published listing, off-market property or completed transaction. Asking prices are not achieved sale prices.
Analytical flow
From observation to interpretation.
A professional process with visible boundaries.
- 01
Observe
Residential listings from multiple available sources are brought together as observed listing data.
- 02
Order over time
Analyses distinguish the latest relevant listing snapshots from historical observations.
- 03
Check
Data quality, source distribution and signals for potential cross-source duplicates are considered.
- 04
Benchmark
Metrics are placed in geographical context at postal-code and city level.
- 05
Qualify
Results include transparent notes on coverage, recency and interpretive confidence.
Concepts & metrics
Clearly defined. Carefully interpreted.
Report metrics describe listing data and are presented with their geographical and temporal context.
- Inventory measurement
- Counts or describes active listings visible at the relevant observation point within the defined market scope.
- Median asking price
- The middle observed asking price: half of the included listings sit below it and half above it.
- Median asking price per sqm
- The median observed asking price per square metre for listings with suitable floor-area information.
- Historical trends
- Compare observed listing snapshots over time. They describe visible developments, not completed transactions.
- Postal-code and city benchmarking
- Places a narrow postal-code perspective beside a broader city-level benchmark.
- Potential duplicate detection
- Looks for signals that the same property appears across sources or variants. These are indicators, not guarantees.
- Source distribution
- Shows how included observations are distributed across available sources without implying complete market coverage.
- Data confidence
- Qualifies interpretive strength using available volume, recency, source mix and other quality characteristics.
Known limitations
Transparency is part of the result.
- Sources can differ in coverage, recency and level of detail.
- Listings may be changed, withdrawn or published more than once.
- Not every listing contains complete or consistent property details.
- Asking prices represent neither formal market value nor the eventual transaction price.
- Small local samples require especially careful interpretation.
The analyses describe the listing market observed through the platform’s available data sources. They do not represent every property listing or transaction in Germany.
View Sample Report