Individuals may be dark olive to black, or uniformly light brown to olive grey-green, with a uniform or slightly lighter belly, especially the chin, throat and neck.

[3] The olive house snake occurs in South Africa and Eswatini, where it is found along the eastern coastal belt from the southwestern Cape through East London to the Transkei, and extending through low-veld regions of the KwaZulu-Natal, the Mpumalanga escarpment and the Limpopo Province.

It inhabits coastal bushveld, fynbos and grassveld where sufficient moisture is present, and may occur close to human habitations.

[1] L. inornatus is nocturnal and generally terrestrial, hunting on the ground.

It is generally slow moving and docile but may bite when molested.