Day 15, Correlation: In Neubau, the negative correlation between income level and inequality in the neighbourhood has become stronger from 2011 to 2020. There is a tendency for higher status areas to become more homogeneous, while social mix is higher in lower status areas. #30DayChartChallenge

Day 14, Trade: Quick snapshot from Vienna (10th & 15th districts): we checked some apartments for sale in Gründerzeit architecture buildings. Even in this small, non-representative sample, there’s a clear pattern: 4th-floor units tend to come with slightly higher price tags. #30DayChartChallenge

Day 13, Ecosystem: Exploring the housing ecosystem in Lower Austria: how do land prices relate to the share of single family houses in second-hand ownership at the municipal level? #30DayChartChallenge

Day 11, Physical: Residential streets are meant for people, but they’re still designed for cars. This is particularly problematic around schools and kindergartens. In the Ma(r)king Neighborhoods project, we’re asking the question: how do children experience these streets? #30DayChartChallenge

How can cities better address housing precarity and homelessness? Together with researchers, policymakers, and civil society practitioners, Judith Schnelzer will join the panel discussion at CEU on housing precarity and homelessness in contemporary European cities. events.ceu.edu/2026-04-15/b...

Who owns the city, and why does it matter for greener futures? 🌿🏙️ We invite you to the webinar: “Ownership-based analysis to foster Nature-Based Solutions and climate resilience in Vienna, Austria” 🎤 Maximilian Wonaschütz 📅 16 April @17:00 (CET) 🔗 bit.ly/4lLbp5p #UrbanPlanning #ClimateAdaptation

Day 10, Pop Culture: Budapest streets named after famous writers, poets, artists, and actors — but do they come with a price tag? Turns out, not really. A twist: streets named after the Jókai–Laborfalvi couple are actually cheaper, even though they’re scattered across the city. #30DayChartChallenge

Day 9, Wealth: The Viennese district of Neubau shows high income variation within housing market segments. This shows that apart from income and housing types, other aspects of wealth and localised housing characteristics influence residential sorting. #30DayChartChallenge #Sorting

Day 8, Circular: We split Vienna into concentric rings and visualised Airbnb listings within each zone using donut charts. The result is striking: far from its original home-sharing purpose, Airbnb has become a playground for profit-driven large-scale investors. #30DayChartChallenge #Vienna

Day 4, Slope: Vienna’s rents have pulled away from incomes. With 2005 = 100, the rent index is near 190 in 2024, while disposable income is ~152. The gap has widened steadily since 2010. #30DayChartChallenge #Vienna #Housing

Day 3, Mosaic: The urban regions of Upper Austria are characterised by highly different housing market segmentation. While Linz and Steyr are dominated by non-profit housing, the regions of Gmunden, Ried or Vöcklabruck are dominated by private housing. #30DayChartChallenge #Housing

Day 2, Pictogram: Timeline for the opening of new municipal and private theaters in Istanbul, differentiated by location: 2000-2025. #30DayChartChallenge #Istanbul

Day 1, Part-to-Whole: Each bar in this graph shows the diverse population distributions of small neighbourhoods in the city region of Gmunden, which collectively contribute to mild segregation levels by country of origin, as measured by the multigroup H-Index. #30DayChartChallenge #Gmunden