  We present a model for the in situ assembly of planetary systems around a
0.5~$M_{\odot}$ star, and compare the resulting statistics to the observed
sample of cool Kepler planet candidates from Dressing & Charbonneau (2013). We
are able to reproduce the distribution of planetary periods and period ratios,
although we once again find an underabundance of single transit systems
relative to the observations. We also demonstrate that almost every planetary
system assembled in this fashion contains at least one planet in the habitable
zone, and that water delivery to these planets can potentially produce a water
content comparable to that of Earth. Our results broadly support the notion
that habitable planets are plentiful around M~dwarfs in the solar
neighbourhood.
