The total area is 271 square units.
Here is something that I almost never do, but I'm going to
do it this time:
I almost never draw a picture or a diagram to show how I got
my answer. But this one would be so complicated to try and
explain with text, that I marked my process on top of your
picture, and I attached my final picture to this answer.
It'll show you how I split the whole figure up into one square
and two rectangles, then found the area of each piece, and
then added them all together.
