Research Working Papers

Topic

Automated valuation models

8 papers

WP26

Can Autonomous AI Agents Discover the Fundamental Value of Real Estate? Evidence from Quebec Transactions and Multi-Agent Deliberation

Simon-Pierre Boucher · UQO Working Papers · October 2026 · v1.0

Committees of role-specialised language-model agents that debate before answering are increasingly proposed as valuation tools. This paper asks whether the debate adds information. In a preregistered experiment on 631,866 arm's-length residential sales registered in Quebec between 2021 and 2026, evaluated under a…

WP23

Beyond Hedonic Models: Spatiotemporal, Hierarchical and Probabilistic Architectures for Residential Real Estate Price Forecasting

A pseudo-real-time evaluation on 632,000 Quebec transactions and 82 local market indices, 2021–2026

Simon-Pierre Boucher · UQO Working Papers · October 2026 · v1.1

This paper asks whether new forecasting architectures improve residential price forecasts over strong conventional methods, and under which conditions. Using the audited Quebec land-registry sample of UQO Working Paper 22 (632,006 sales, 2021–2026) and its real-time quality-adjusted index vintages, it defines three…

WP20

From Listing Images to Property Valuation: A Multimodal AI Framework for Automated Building Characterization and the Cost Approach

Evidence from Québec single-family listings matched to the assessment roll

Simon-Pierre Boucher · UQO Working Papers · October 2026 · v1.0

The cost approach to value requires a specification of the improvements — materials, finish grade, condition, renovations — that assessment rolls do not record and that appraisers obtain by inspection. This paper asks whether that specification can be extracted from the photographs and text of a for-sale listing by…

WP16

Does the Sales Comparison Approach Actually Work? A Large-Scale Point-in-Time Validation of Comparable Selection, Price Adjustments, and Value Reconciliation

Evidence from 391,000 Single-Family Transactions in Quebec, 2021–2026

Simon-Pierre Boucher · UQO Working Papers · October 2026 · v1.1

The sales comparison approach is the dominant method of residential valuation, yet its operating rules — how many comparables to use, how far and how far back to search, which adjustments to apply, how to weight and reconcile — rest largely on professional convention. This paper subjects these rules to a…

WP14

Hedonic House Pricing with Language-Model and Vision Features: Evidence from Quebec Real-Estate Listings

Simon-Pierre Boucher · UQO Working Papers · October 2026 · v2.1

Hedonic house-price models are bounded by the characteristics an analyst can measure, yet much of a home's value is recorded only in the free-text description and photographs of its listing. This paper treats general-purpose AI models as a feature-engineering technology: a large language model converts each…

WP11

Half a Million Prices, Twenty Models

A Systematic Assessment of Hedonic Specifications and Estimation Methods for the Quebec Housing Market, 2021–2026

Simon-Pierre Boucher · UQO Working Papers · October 2026 · v1.1

Fifty years after Rosen (1974), applied hedonic practice still rests on specification choices (functional form, temporal controls, spatial controls, estimation method) that are made by convention and rarely stress-tested jointly. Using 514,212 Quebec residential sales (2021–2026) whose structural descriptors come from…

WP09

A Grand Hedonic Model of the Canadian Housing Market

Decomposing the Value of Structure and Location across 142,121 MLS Listings with High-Dimensional Neighbourhood Fixed Effects

Simon-Pierre Boucher · UQO Working Papers · October 2026 · v1.3

This paper estimates a national hedonic price function for the Canadian residential market on a cross-section of 142,121 active MLS listings from nine provinces. A semi-logarithmic specification relates the log list price to structural attributes, dwelling type and ownership form, and 1,155 absorbed neighbourhood…

WP03

Hedonic Housing Price Models for the United States: A Multi-Method Comparison of Parametric, Quantile, and Machine Learning Approaches

Simon-Pierre Boucher · UQO Working Papers · October 2026 · v1.2

This paper compares econometric and machine-learning approaches to hedonic housing valuation on 788,842 active Zillow listings covering all 50 U.S. states and the District of Columbia, and asks how much of the machine-learning advantage survives when models must price homes in markets they have not seen. A semi-log…