Accidental roadkill, upon time of death it had a green hue , and the following morning was brown.
May have entered house owing to recent fires on mountain...
a young Python
Arthroleptella atermina - Riviersonderend Moss Frog.
https://www.tyroneping.co.za/amphibians-of-southern-africa/arthroleptella-atermina-riviersonderend-moss-frog/