Kiez Finder: tell the map what you are looking for

Until now, navigator.berlin answered the question "What is it like at this address?". The new Kiez Finder reverses the direction: you tell the map what matters to you, and it shows you where Berlin fits.

The panel opens via the Kiez Finder link in the header or directly from the home page. Nine sliders are ready:

• Quiet & air, green space & heat protection, mobility, local amenities, tenant protection, cultural offer: the six Kiez score dimensions, each from "as little as possible" to "as much as possible". If you want quiet, drag to the right. If you deliberately want bustle, drag to the left.
• Development & density: from spacious to densely populated, calculated from residents per area.
• S-Bahn proximity: rates the walk to the nearest station, starting from five minutes on foot.
• Similar voting behaviour: finds areas where a chosen party did comparatively well in the 2025 Bundestag election, based on second votes.

The core is the live mechanism: the map does not wait for a submit button. Every slider movement instantly recolours all 542 planning areas, and dark means a strong match. The calculation runs directly on the graphics card of your device, and after the first load the data is fully in the browser. A top 5 list in the panel names the planning areas with the best match at the current slider settings.

To keep fine differences visible, the colour scale spans the actual distribution of the match values instead of a fixed range. Even when half the city fits about equally well, the map shows where it fits best.

On mobile, the finder sits in a pull-up panel at the bottom edge, and on large screens in the sidebar. As usual, a click on the map opens the address inspector. Your slider settings are kept and return when you close it.

One clarification matters to us: the match is your own weighting of open data, not an assessment of neighbourhoods or people. There is no "good" or "bad" result, only an answer to your criteria. We deliberately left out crime data. It stays available as a separate map with context, but does not work as an ingredient for a ranking. And the party criterion describes similarity in voting behaviour, not a recommendation.

The data basis is the same as everywhere on navigator.berlin: Kiez score dimensions from open Berlin sources, population data from the Statistics Office, S-Bahn stations from OpenStreetMap, election results from the Federal Election Commissioner (Bundeswahlleiterin).