This does not have to do with actual improvement of the home, but to a point I guess it does.

Whenever it rains I notice this musty smell in my living room and office. We used to only notice it in the office room, but now we notice it in the living/dining area too. The office and living/dining area are on the same side of the house. Could this mean I have mold?

I do notice some mold on an area of the ground outside where grass isn't growing, and it is right outside the dining area of my house.

Please help! :confused:

Yes,it is very possible that you have a mold problem. If you have a slab house rain water could be going up against or under your house. If you have a basement look for signs of water entering house. You might be able to take off a baseboard were you have the smell and cut a small hole in the drywall to see what is in your wall

Just A Comment, Have You Been Getting Sick? You May Need To Take The Mold To A Lab And Have It Checked To Make Sure Its Ok For You To Be Breathing.
We've Ran Into A Few Cases Where There Were Problems Like This.