I live in LA (duh) and love the rain. I'm smack in the middle of the city (between Culver City and USC) and where i live is flat. Also I'm fortunate that my roof is fairly new and the exterior had all new stucco put on when I did my additions, so aside from it being wet and "puddly", it's not an issue.
Side note - I found a dog in my backyard 2 weeks ago. Really sweet 3 year old lab/shepherd mix. Working on getting him fixed so I can rehome him. BUT he's a big baby about the water and pooped in my bathroom cuz he didn't want to go outside. It's been raining pretty hard non-stop for a good while now. In fairness, i wasn't thrilled about going outside either, but I'm toilet trained so...