And current...
More posts! Sorry, your rear fence is on 3" posts as far as I can tell, you'll want 4" to support a pergola. You would also find it difficult to attach to concrete posts. You will want 7' of headroom beneath (tall guest +6").
Ahhhhhh rats. Makes sense but kinda hoped to avoid more post. Cheers for the reply!
@ColinTheBald started
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