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Due mainly to the progress in investigation methods and to new building construction sites in the area, since Leel-Őssy’s work there have not only been new discoveries but new results have emerged from research into the genetics and minerals of local hypogene caves. To give one example, in 1995 30 km of cave pasages were known in the Rozsadomb; now that figure is 55 km. Among the new theories related to genetics, the most important one focuses on altered zones and the source and the mixing of the ascending thermal water that created the caves. The number of known mineral species in the Buda caves has increased from 15 to 31. This was the time of the first age determinations, which provided us with actual dates. Today there are 239 known caves in the Buda Hills and 176 caves in Budapest (including the caves in Roka Hill, which belongs to the Pilis Hills). In the area of Rozsadomb there are 102 caves on the list of the Hungarian Cave Register. In the last 20 years, the most important cave discoveries in the Rozsadomb area were in Molnar Janos Cave (mainly in the phreatic zone), and in the Hideglyuk, Harcsaszaju and Pal-volgy Caves. After the discovery of the connecting passages between the last three mentioned caves and the Matyas-hegy Cave, this Pal-volgy Cave System is recently the longest known cave system (31 km long) in Hungary. Its length exceeds the Baradla Cave in Aggtelek–Josvafő (together with the part of the Baradla Cave in Slovakia — there known as the Domica Cave). Furthermore, a major result of the speleogical investigations has been the discovery of the Melyszint (deep part) of the Ferenc-hegy Cave; formerly, knowledge about this cave was based on the surface-close passages. The discovery of three ”new” small caves — the Citadella Crystal Cave, the Kiralylaki Cave and the Jozsef-hegy No. 4 Cave — is also significant. This is due to their having valuable mineral precipitations and their potential for further investigations. In addition to these three important caves, over the last 20 years 28 small caves have been found by explorers: mainly in the Rozsadomb area and in the Buda Hills.

Az utóbbi 20 év barlangkutatási eredményei a Budai-hegységben (különös tekintettel a Rózsadomb környékére)