Building the Sukkah during Shiva or Aninus:
On Erev Sukkos, an Onen may build the Sukkah if there is no one else available to do so for him.<a href="#_ftn1" name="_ftnref1">[1]</a> Likewise a mourner during Shiva may build the Sukkah himself if there is no one available to do so for him.<a href="#_ftn2" name="_ftnref2">[2]</a>
<a href="#_ftnref1" name="_ftn1">[1]</a> Darkei Hachaim 2:33
<a href="#_ftnref2" name="_ftn2">[2]</a> Nitei Gavriel 123:2

Shulchan Aruch HaRav | ❓Building the Sukkah during Shiva or Aninus

Building the Sukkah during Shiva or Aninus: On Erev Sukkos, an Onen may build the Sukkah if there is no one else available to do so for him.[1] Likewise a mourner during Shiva may build the Sukkah himself if there is no one available to do so for him.[2] [1]