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Methodology

How the wohnwahn score works

The wohnwahn score sums up how well a flat fits a good life in Vienna, today and tomorrow. It weighs four pillars (location, price, climate outlook and commute time) and relies solely on open, traceable data. No paid ranking, no hidden assumptions.

The four pillars

Location

Daily needs, family, mobility, environment and culture, from concrete places and walking times in the Grätzl.

Price

Ratio of rent or purchase price to the area median: fair, not just cheap.

Climate

Heat days 2050/2070 under GeoSphere scenarios: how cool the location stays in future.

Commute

Real travel times to your work address by mode: public transport, bike, car, on foot.

The area in categories

The „Location" pillar draws on five scannable categories, each calculated from concrete places and distances in the Grätzl.

Everyday & supplies
Supermarkets, bakeries, pharmacies and drugstores within walking distance: density and distance.
Family
Primary schools, kindergartens and playgrounds and how easy they are to reach.
Mobility
Connections and frequency of metro, tram and bus at the address.
Environment
Air quality, noise exposure and the share of green and park areas.
Culture & nightlife
Bars, cafés, cultural venues and nightlife in the surrounding area.

Data sources

DataSource
Geodata & boundaries (Vienna + around)City of Vienna OGD, data.gv.at, OpenStreetMap
POI (supermarkets, doctors, pharmacies, schools, kindergartens)OpenStreetMap / Overpass, Vienna OGD WFS
Public transport links & timetablesVOR / Wiener Linien GTFS, national GTFS feed
Travel times by modeRouting over the OpenStreetMap network
Addresses & geocodingBEV address register, Nominatim (fallback)
Rent & purchase prices (area)Market medians, indexed to Statistik Austria HPI
Climate outlook (heat days 2050/2070)GeoSphere Austria (climate scenarios ÖKS15)
Air qualityFederal Environment Agency (Umweltbundesamt)
Map tiles© OpenStreetMap contributors

How up to date

Listings are refreshed several times a day, POI and public transport data monthly, market medians quarterly and the climate scenarios with every new GeoSphere release. Every place and listing page visibly carries its „last updated" date.

Frequently asked questions

Is the score objective?

It is transparent and reproducible: same data, same weighting, same result. „Objective" in the sense of value-free is not an assessment: that is why you can weight the pillars to fit your life and then see „your match" instead of just a „score".

How current is the data?

Listings several times a day, POI and public transport monthly, price medians quarterly, climate scenarios with every new GeoSphere release. Every page shows its update date.

Does paid placement play a role?

No. There is no bought ranking and no preferred listings. The score depends solely on the data sources named here.

Why is the location sometimes only „approximate"?

When a listing does not publish an exact address, we honestly show a soft radius instead of a sharp pin and mark it visibly.

See the score for real flats.

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Last updated: June 2026 · Map tiles © OpenStreetMap contributors