Dress Code Not Specified What To Wear

Dear Dr. Dave and Dr. Dee;

I am attending a dinner at the House of Lords, and I don't know what is appropriate to wear.

Signed,

What to wear

Dear What to wear,

If the invitation does not specify a dress code, then considering the venue, assume smart dress casual or semi-formal. A nice knee length dress or outfit with heels should be fine.

It is always appropriate to ask the host about acceptable attire.