Mesmark,
After further research, I found out you were correct that my "where" sentence would be better classified as a relative clause. It's just that 'where' isn't one of the main relative pronouns.
Also, I found this out about embedded questions over at ESL GOLD website: "An embedded question is a part of a sentence that would be a question if it were on its own, but is not a question in the context of the sentence."
So, applying that meaning to my 'where' sentence, if I stripped everything from the sentence it would read, "where my house was" and that isn't a question, so naturally it would fall into the relative clause category.
Thanks for pointing me in the right direction...
