Had the shot been taken in RAW you could punch that up nicely with a Levels, or Curves, adjustment layer. You wouldn't be able to totally disguise the fact the sun was on the other side of the house (or if that can be done it's waaay outside my skill-level with Photoshop) but you could do a whole lot better than just pumping up the Contrast slider.
Other than that, you have to cooperate with the sun. That's just how it is.
Because-I'm-Bored-at-Work Bonus Edit: Here's a quick and dirty job I did on your original. It's a small JPG, so there's only so much I can do:
Yes, there are serious issues with banding and posterization in the sky but hopefully you get the idea. I brought down the exposure on the sky (which was blowing out) on its own layer then used a Curves layer globally. The shot also badly needed sharpening but JPG's don't sharpen well (grrr) so I had to use a really light touch. I think I adjusted the White Balance a little bit as well and that's about it. With a RAW file you could do sooooo much better.
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