Figure 18
The figure presents a comparison matrix organized as a table with five rows and ten columns. At the top, columns 1 and 2 are merged for the header “Open Cities greater than”, which is divided below into “Free functional zoning (to allow programmatic transformation)” in column 1 and “Number of apartment-rights greater than number of apartments (to allow reconfiguration of apartment sizes)” in column 2. Columns 3 to 6 are merged for the header “Open Buildings greater than”, which is divided below into “Extra Floor Height” in column 3, “Division walls coincide with load bearing structure” in column 4, “Division walls independent of load bearing structure” in column 5, and “Façade independent from load bearing structure” in column 6. Columns 7 to 10 are merged for the header “Open Systems greater than”, which is divided below into “Façade optimised for or adaptable to changing future use” in column 7, “Installations fully integrated in load bearing and apartment-dividing structure” in column 8, “Installations partly independent of load bearing and apartment-dividing structure” in column 9, and “Installations fully independent of load bearing and apartment-dividing structure” in column 10. On the left, from top to bottom, the row headers are “Non-flexible or one time flexible”, “Slightly flexible”, “Flexible”, “Very flexible”, and “Max-flexible”. In row 1, columns 4 and 8 contain “X” cross symbols, while the other columns are blank. In row 2, columns 4 and 9 contain “X” cross symbols, while the other columns are blank. In row 3, columns 3, 4, 7, and 9 contain “X” cross symbols, while the other columns are blank. In row 4, columns 1, 2, 3, 5, 6, 7, and 10 contain “X” cross symbols, while columns 4, 8, and 9 are blank. Column 2 contains diagonal stripe shading, and column 10 contains dotted shading. A legend beneath the table explains the patterns: diagonal stripes correspond to “Patch 22”, solid dots correspond to “Top-Up”, and a combination of stripes and dots corresponds to “Both Patch 22 and Top-Up”.Openbuilding.co adaptability evaluation criteria scheme. Flexibility ranges from one-time to repeated adaptability. While all buildings can be modified, designing for adaptability simplifies changes. Openbuilding.co distinguishes these flexibility levels as a design guideline (Frantzen, 2018), considering buildings “Open” if they score “Very flexible” or “Max-flexible.” Patch22 falls short to qualify as “Max-flexible” due to installations in the load-bearing slimline floor compromising its legal barrier function. Top-Up is also not “Max-flexible” since its division deed restricts functional zoning, and the number of condominium rights only matches the number of apartments. Source: Created by authors