We have these boys come into the house quite often and prowl around ceiling corners -- called "rain spiders", they can get quite large (although our cat considers them a delicacy) ... but are pretty harmless... a species of
huntsman spider native to Southern Africa.
[2] It is the most common and widespread species in the
Palystes genus. Its distribution ranges from
KwaZulu-Natal province in the east, then westwards to the provinces of
Mpumalanga,
Limpopo, and
North West in the north, and
Eastern Cape and
Western Cape in the south. It has a body length of 25–30 mm ... venom apparently about as painful as a bee sting.
Generally just trap 'em in a tupperware and chuck em back into the garden.
Although this is a baby one... wouldn't want to be doing this for fun...