How do I [25F] politely invite an acquaintance in a wheelchair [30M] to an inaccessible event?

Hello reddit,

I have an acquaintance who has used a wheelchair for as long as I have known them. I am soon to move in to a second floor flat which only has stair access. The stairs are those metal outdoor kind, and pretty narrow. I want to have a housewarming, and can't just exclude them but invite everyone else we both mutually know; how can I invite them whilst being sensitive to the fact that they probably cannot attend, or if they do, have to be carried up the stairs?

*tl;dr: is it rude to invite someone who can't access your party

Submitted June 18, 2019 at 04:30PM by throwaway__legs http://bit.ly/2XXxj9D