On the Performance of LLMs for Real Estate Appraisal

Fuente: arXiv
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Auteurs principaux: Geerts, Margot, Reusens, Manon, Baesens, Bart, Broucke, Seppe vanden, De Weerdt, Jochen
Format: Preprint
Publié: 2025
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author Geerts, Margot
Reusens, Manon
Baesens, Bart
Broucke, Seppe vanden
De Weerdt, Jochen
author_facet Geerts, Margot
Reusens, Manon
Baesens, Bart
Broucke, Seppe vanden
De Weerdt, Jochen
contents The real estate market is vital to global economies but suffers from significant information asymmetry. This study examines how Large Language Models (LLMs) can democratize access to real estate insights by generating competitive and interpretable house price estimates through optimized In-Context Learning (ICL) strategies. We systematically evaluate leading LLMs on diverse international housing datasets, comparing zero-shot, few-shot, market report-enhanced, and hybrid prompting techniques. Our results show that LLMs effectively leverage hedonic variables, such as property size and amenities, to produce meaningful estimates. While traditional machine learning models remain strong for pure predictive accuracy, LLMs offer a more accessible, interactive and interpretable alternative. Although self-explanations require cautious interpretation, we find that LLMs explain their predictions in agreement with state-of-the-art models, confirming their trustworthiness. Carefully selected in-context examples based on feature similarity and geographic proximity, significantly enhance LLM performance, yet LLMs struggle with overconfidence in price intervals and limited spatial reasoning. We offer practical guidance for structured prediction tasks through prompt optimization. Our findings highlight LLMs' potential to improve transparency in real estate appraisal and provide actionable insights for stakeholders.
format Preprint
id arxiv_https___arxiv_org_abs_2506_11812
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle On the Performance of LLMs for Real Estate Appraisal
Geerts, Margot
Reusens, Manon
Baesens, Bart
Broucke, Seppe vanden
De Weerdt, Jochen
Artificial Intelligence
Computation and Language
Machine Learning
The real estate market is vital to global economies but suffers from significant information asymmetry. This study examines how Large Language Models (LLMs) can democratize access to real estate insights by generating competitive and interpretable house price estimates through optimized In-Context Learning (ICL) strategies. We systematically evaluate leading LLMs on diverse international housing datasets, comparing zero-shot, few-shot, market report-enhanced, and hybrid prompting techniques. Our results show that LLMs effectively leverage hedonic variables, such as property size and amenities, to produce meaningful estimates. While traditional machine learning models remain strong for pure predictive accuracy, LLMs offer a more accessible, interactive and interpretable alternative. Although self-explanations require cautious interpretation, we find that LLMs explain their predictions in agreement with state-of-the-art models, confirming their trustworthiness. Carefully selected in-context examples based on feature similarity and geographic proximity, significantly enhance LLM performance, yet LLMs struggle with overconfidence in price intervals and limited spatial reasoning. We offer practical guidance for structured prediction tasks through prompt optimization. Our findings highlight LLMs' potential to improve transparency in real estate appraisal and provide actionable insights for stakeholders.
title On the Performance of LLMs for Real Estate Appraisal
topic Artificial Intelligence
Computation and Language
Machine Learning
url https://arxiv.org/abs/2506.11812