Computer Aided architectural design : INTERCONNECTIONS: Co computing beyond boundaries : 20th International Conference CAAD Futures 2023 Delft The Netherlands July 5 7 2023 selected papers This book includes the refereed Selected Papers of the 20th International Conference on Computer Aided Architectural Design. INTERCONNECTIONS: Co computing Beyond Boundaries CAAD Futures 2023 held in Delft The Netherlands in July 5 7 2023. The 43 full papers included in this book were carefully reviewed and selected from 144 submissions. They were organized in topical sections as follows: algorithmic architectural design; AI powered architectural ideation; performance based design urban models and analysis; urban design; digital design materials and fabrication; spatial information data and semantics; building data analysis visualisation interaction; and building massing and layouts