\begin{table}[htbp]
\centering\small
\caption{Stage-1 robust hedonic regressions (selected coefficients; dependent variable log price)}\label{tab:stage1}
\begin{threeparttable}

\begin{tabular}{lrrr}
\toprule
Regressor & Houses & Condominiums & Plexes \\
\midrule
log floor area (centred) & 0.418 & 0.697 & 0.326 \\
log floor area$^2$ & 0.039 & 0.107 & -0.015 \\
log floor area$^3$ & 0.048 & -0.017 & -0.025 \\
log lot area (centred) & 0.131 & 0.043 & 0.144 \\
log lot area$^2$ & -0.006 & -0.018 & -0.002 \\
Age 2–5 & 0.182 & 0.014 & 0.205 \\
Age 11–20 & 0.076 & -0.127 & 0.022 \\
Age 21–40 & -0.039 & -0.219 & -0.130 \\
Age 61–80 & -0.281 & -0.222 & -0.342 \\
Age 120+ & -0.365 & -0.201 & -0.429 \\
Two storeys & -0.039 & 0.017 & 0.043 \\
Semi-detached & -0.091 & — & — \\
Row & -0.131 & — & — \\
Triplex & — & — & 0.066 \\
5 units & — & — & 0.207 \\
log floor area $\times$ time & -0.134 & -0.091 & -0.119 \\
log lot area $\times$ time & 0.046 & 0.123 & 0.085 \\
Floor area missing & -0.088 & -0.095 & 0.064 \\
Age missing & -0.088 & -0.039 & -0.088 \\
Observations & 422{,}196 & 122{,}914 & 86{,}245 \\
Robust residual s.d. & 0.185 & 0.134 & 0.214 \\
Within $R^2$ & 0.533 & 0.629 & 0.480 \\
\bottomrule
\end{tabular}
\begin{tablenotes}\footnotesize\item Huber-IRLS ($k=1.345$) with fine-location fixed effects (nested metric grid, finest cell with at least 15 sales) and month effects; time index $tt$ runs from $-0.5$ (January 2021) to $0.5$ (October 2026). Full coefficient lists in results/panel/stage1\_meta.json.\end{tablenotes}
\end{threeparttable}
\end{table}