Istanbul (Turkey)
The SUPERSHINE Turkish fellow district is located in Kadıköy, a central district of metropolitan Istanbul. The demo site consists of one 13-floor block with 72 units, adjacent to the former gasworks, which have been repurposed as a cultural, social, and recreational centre. The surrounding area, Hasanpaşa Residentials, is primarily residential with mixed-use buildings, many of which are low in architectural and energy performance.
SUPERSHINE supported Istanbul in developing adaptive reuse and energy-efficient strategies, improving building performance, enhancing social and cultural spaces, and increasing the sustainability and resilience of the district. Access to nearby public and private services, including treatment centres, cultural facilities, and administrative offices, further strengthened the integration of the intervention into the local community.
Financial Graphs
This figure shows that, in the Turkish case, the guaranteed savings model delivers its strongest performance when all renovation measures are implemented together. The full package generates a return on investment of 9.77% for social housing and 8.22% for the ESCO, both above the 6.11% benchmark. Among the individual measures, wall renovation performs best, with returns of 7.68% for social housing and 8.09% for the ESCO. Roof and floor measures offer more moderate returns, while window upgrades produce the weakest standalone result, at 2.22% for social housing and 3.61% for the ESCO, both below the benchmark. Overall, the chart shows that bundling the measures is the most financially attractive option in the Turkish case.
Energy Poverty Graphs
This figure highlights a substantial reduction in household energy burden after renovation. Before the energy efficiency measures, households in the Turkish case spend 38.17% of income on energy, indicating a high level of energy poverty. After renovation, this falls to 19.14%, cutting the burden by roughly half. The chart demonstrates that renovation can significantly improve affordability for residents by reducing the share of household income that must be devoted to energy costs.
This chart shows a clear reduction in building energy use intensity following renovation. Energy consumption falls from 950.65 kWh/sqm before renovation to 681.08 kWh/sqm after renovation. Although the post-renovation value remains relatively high, the decrease still represents a meaningful improvement in efficiency and a reduction in overall energy demand. This suggests that the renovation measures can contribute to lower running costs and better building performance in the Turkish context.
This figure illustrates the social benefits of renovation in terms of indoor comfort. Before the renovation, 25.20% of residents are unable to keep their homes adequately cool in summer and warm in winter. After renovation, this share falls to 13.83%. The result shows that the energy efficiency measures not only reduce bills and consumption, but also improve living conditions and reduce the number of households facing thermal discomfort.
Lighthouses
Lighthouse districts are in three cities: Trieste (Italy), Herning (Denmark) and Riga (Latvia).
