Portrait of Stefan Fuchs

Dr. Stefan Fuchs

Group Lead Foundation Models

Chair of Computing in Civil and Building Engineering and TUM Georg Nemetschek Institute,
Technical University of Munich

Dr. Stefan Fuchs is group lead of the Foundation Models group at the Technical University of Munich, Chair of Computing in Civil and Building Engineering and TUM Georg Nemetschek Institute - AI for the Built World. He holds a PostDoctoral scholarship from the TUM Leonhard Obermeyer Center (LOC) and earned his PhD from the School of Computer Science at the University of Auckland, New Zealand, in 2024. His doctoral research focused on leveraging neural networks to interpret building regulations, enabling their application in automated compliance checking (ACC). In his postdoctoral research at TUM, Stefan is expanding his expertise in Large Language Models and Vision-Language Models in the context of Building Information Modelling, with the goals of developing a fully automated compliance checking system and using ACC as a feedback signal for generative design.

Research

The Foundation Models group explores the capabilities of Large Language Models (LLMs) and Vision-Language Models (VLMs) for tasks in the built environment. We investigate how these models can interpret, reason over, and generate building-related information across modalities, including text, drawings, images, and BIM models. Current areas of focus include automated compliance checking, generative design, and design adaptation.

Applied research
  • Automated Compliance Checking
  • Generative Design
  • Construction Document Understanding
Fundamental research
  • Large Language Models
  • Vision-Language Models
  • Natural Language Processing
  • Software Engineering Agents

Selected Papers

CodeAct loop of the compliance checking agent
Assessing the Viability of LLM Agents for Generating Reusable Compliance Checking Functions
Fuchs, Hellin, Borrmann · EC3 2026
ReAct agent with adaptive planning for compliance checking
Towards Adaptive Planning in ReAct Agent Systems for Automated Building Code Compliance Checking
Li, Fuchs, Wu, Borrmann · EG-ICE 2026
Framework for post-ACC design adaptation
The Beginning, Not the End: Revisiting Automated Compliance Checking for BIM-based Design Adaptation
Wu, Fuchs, Bloch, Borrmann · i3CE 2025
Parallel drafting process of building regulations
Exploring the potential of parallel drafting of building regulations
Fuchs, Fauth, Boden, Amor · Advanced Engineering Informatics 2025
Reversible and lossy intermediate representations
Intermediate representations to improve the semantic parsing of building regulations
Fuchs, Dimyadi, Witbrock, Amor · Advanced Engineering Informatics 2024
Neural semantic parsing of building regulations
Neural semantic parsing of building regulations for compliance checking
Fuchs, Witbrock, Dimyadi, Amor · IOP Conf. Series 2022

Publications

2026

  1. AI for Building Permitting: Balancing Speed, Flexibility, and Trust
    Bloch, T.; Fuchs, S.; Fauth, J.; Amor, R.
    In: Fauth, J. et al. (eds.): Digital Transformation of Building Permitting. Routledge, 2026, 243-256 DOI
  2. Querying BIM Models with LLM Agents: A Comparison of Data Representations
    Du, C.; Hellin, S.; Fuchs, S.; Borrmann, A.
    European Conference on Product and Process Modeling (ECPPM) 2026 Paper
  3. Assessing the Viability of LLM Agents for Generating Reusable Compliance Checking Functions
    Fuchs, S.; Hellin, S.; Borrmann, A.
    Proc. of the European Conference on Computing in Construction (EC3), 2026 PaperCode
  4. Enabling Cross-Study Comparison: A Framework for Automated BIM-QA Evaluation
    Hellin, S.; Fuchs, S.; Nousias, S.; Borrmann, A.
    Proc. of the European Conference on Computing in Construction (EC3), 2026 Paper
  5. Agentic search for BIM information extraction: Systematic evaluation
    Hellin, S.; Jang, S.; Fuchs, S.; Nousias, S.; Borrmann, A.
    Automation in Construction 192, 2026, 107260 Paper
  6. Towards Adaptive Planning in ReAct Agent Systems for Automated Building Code Compliance Checking
    Li, Y.; Fuchs, S.; Wu, J.; Borrmann, A.
    Proc. of the 33rd International Workshop of the European Group for Intelligent Computing in Engineering (EG-ICE), 2026 PaperCode
  7. Ten questions concerning Large Language Models (LLMs) for building applications
    Ma, N.; Labib, R.; Amor, R.; Chong, A.; Fan, C.; Forth, K.; Fu, X.; Fuchs, S.; Hong, T.; Klimenkova, N.; Koo, J.; Li, S.; McCullough, S.; Park, J.; Shraga, R.; Yoon, S.; Zhang, L.; Zhang, Y.
    Building and Environment 291, 2026, 114260 DOI
  8. Automated building component alterations driven by LLM-formalized human strategies to achieve code compliance
    Wu, J.; Fuchs, S.; Pauwels, P.; Borrmann, A.
    Automation in Construction 190, 2026, 107148 Paper

2025

  1. Towards Semantic Enrichment of IFC Models through Language Modeling
    Fuchs, S.; Borrmann, A.
    Proc. of the 32nd International Workshop on Intelligent Computing in Engineering (EG-ICE), 2025 DOI
  2. The Challenge of Automated Compliance Checking: A Regulatory View
    Fuchs, S.; Fauth, J.; Boden, M.; Amor, R.
    Proc. of the 2025 European Conference on Computing in Construction and the CIB W78 Conference on IT in Construction, 2025 Paper
  3. Exploring the potential of parallel drafting of building regulations
    Fuchs, S.; Fauth, J.; Boden, M.; Amor, R.
    Advanced Engineering Informatics 68 (Part B), 2025, 103627 DOICode
  4. A visual editor for marked-up codes with auto-completion
    Po, T.; D'Souza, L.; Fuchs, S.; Amor, R.
    Proc. of the 32nd International Workshop on Intelligent Computing in Engineering (EG-ICE), 2025 DOI
  5. The Beginning, Not the End: Revisiting Automated Compliance Checking for BIM-based Design Adaptation
    Wu, J.; Fuchs, S.; Bloch, T.; Borrmann, A.
    ASCE International Conference on Computing in Civil Engineering (i3CE), 2025 Paper
  6. A knowledge injection method for supporting automated compliance checking of shield tunnel designs
    Zhang, Y.; Ren, X.; Fuchs, S.; Amor, R.
    Advanced Engineering Informatics 68 (Part C), 2025, 103781 DOI

2021 - 2024

  1. Transformer-based Semantic Parsing of Building Regulations: Supporting Regulators in Drafting Machine-Interpretable Rules
    Fuchs, S. M.
    PhD thesis, The University of Auckland, 2024 Thesis
  2. Intermediate representations to improve the semantic parsing of building regulations
    Fuchs, S.; Dimyadi, J.; Witbrock, M.; Amor, R.
    Advanced Engineering Informatics 62, 2024, 102735 DOICode
  3. Developing formal representations of building regulations through a parallel drafting process
    Fuchs, S.; Fauth, J.; Amor, R.
    Proc. of the 31st International Workshop on Intelligent Computing in Engineering (EG-ICE), 2024 Paper
  4. Transformer-based semantic parsing of building regulations: Towards supporting regulators in drafting machine-readable rules
    Fuchs, S.; Witbrock, M.; Dimyadi, J.; Amor, R.
    Digital Building Permit Conference, 2024 Abstract
  5. Using large language models for the interpretation of building regulations
    Fuchs, S.; Witbrock, M.; Dimyadi, J.; Amor, R.
    Journal of Engineering, Project, and Production Management 14(4), 2024. Presented at EPPM 2023 DOIarXiv
  6. A LegalRuleML editor with transformer-based autocompletion
    Fuchs, S.; Dimyadi, J.; Ronee, A. S.; Gupta, R.; Witbrock, M.; Amor, R.
    EC3 Conference 2023, volume 4. European Council on Computing in Construction DOI
  7. Improving the semantic parsing of building regulations through intermediate representations
    Fuchs, S.; Dimyadi, J.; Witbrock, M.; Amor, R.
    EG-ICE 2023 Workshop on Intelligent Computing in Engineering PDF
  8. Training on digitized building regulations for automated rule extraction
    Fuchs, S.; Dimyadi, J.; Witbrock, M.; Amor, R.
    ECPPM 2022 - eWork and eBusiness in Architecture, Engineering and Construction, CRC Press, 2023, 428-435 DOI
  9. Neural semantic parsing of building regulations for compliance checking
    Fuchs, S.; Witbrock, M.; Dimyadi, J.; Amor, R.
    IOP Conference Series: Earth and Environmental Science 1101, 2022, 092022 DOI
  10. Natural language processing for building code interpretation: A systematic literature review
    Fuchs, S.; Amor, R.
    Proc. of the 38th International Conference of CIB W78, Luxembourg, 2021, 294-303 Paper

Theses

Completed

Component extraction pipeline
Automated Extraction of Reusable Design Components for BIM Modeling with Machine Learning and Deep Learning Methods
Ziyue Chen · MSc · 2026
Agentic framework for translating infrastructure regulations
AI-Supported Automation of Code Compliance Checking in Infrastructure Design
Irena Samu · MSc · 2026
Snapshot-grounded visual compliance checking workflow
Towards Snapshot-Grounded Visual Compliance Checking of BIM Models via an Agentic Vision-Language Workflow
Erik Markgraf · BSc · 2026
Regulation agent for building code applicability checks
AI Regulation Agent for Automated Building Code Applicability Checks in the Permit Process
Saleem Ullah · MSc · 2026 · co-supervised

Ongoing

Teaching