BarKA is providing, uniform, publicly accessible information on developable brownfield properties.

In Budapest, there are approximately 2,500 hectares and nearly 12,000 hectares nationwide, where basic infrastructure is already in place, yet the land has remained unused for a long period of time.

BarKA is a publicly accessible, digital map-based database that organizes these areas. It currently contains over 3,600 validated brownfield properties and is continuously expanding through ongoing data reconciliation.

One of the system’s key features is the 5-kilometre rule. According to this rule, in the vicinity of brownfield sites listed in BarKA, new areas designated for development are subject to restrictions, which the system automatically displays.

BarKA is a comprehensive decision-support tool. It provides access, in one place, to the most important information needed for development projects: development opportunities, protections, infrastructure, environmental conditions, and orthoimagery dating back to the year 2000. The system also allows the application of TÉKA’s preferential development parameters on the registered sites.

The launch of BarKA is a significant step forward for the Hungarian real estate market. As an official, verified registry, it provides a reliable data source, and its centralized and structured database simplifies the identification of potential development sites while making environmental and regulatory obligations visible from the early stages of planning.

This approach reduces informational uncertainty, accelerates project preparation, and promotes sustainable land use, urban renewal, and greater transparency across the real estate sector.