  Let $(K,d)$ be a connected compact metric space and $p\in (1, \infty)$. Under
the assumption of \cite[Assumption 2.15]{Ki2} and the conductive
$p$-homogeneity, we show that $\mathcal{W}^p(K)\subset C(K)$ holds if and only
if $p>\operatorname{dim}_{AR}(K,d)$, where $\mathcal{W}^p(K)$ is Kigami's
$(1,p)$-Sobolev space and $\operatorname{dim}_{AR}(K,d)$ is the Ahlfors regular
dimension.
