The problem with the kind of surface is that the sun will always be reflect on it making the photo dull. I would wait for a better weather preferably cloudy weather where there's light but no sun and you can use warm wight balance and saturate your photo a little bit to give warmth to it.

Also try to wait for an action in the sky which happens usually if it's windy. Using polarizing filter good to richen the colors.

Also look for another angle, if you can find one with greens around it then try to frame the greens with the building.

As Clara mentioned in her comment, shooting this at night is a good idea, you should try it, however you'll need a huge light source (perhaps with huge deflector), however I think that light painting is tricky cause you have to be careful not to point the light to the building surface in a way that reflects it in your camera cause it will be the same problem as the sun reflections.

Try to get further and use an ultra wide angle lens or fish eye lens.

I find the car infront of the building is distracting, aim for a time where no cars surround the building.

Try to shoot at sunset or sunrise and look for an angle where the sun is looking at the side of the building so that it illuminates the building face but the rays aren't reflected on its surface. Just be careful not angle yourself with the sun is behind the building cause it will dim the building.

If you want a dramatic photo then shoot [HDR][1]


  [1]: http://photo.stackexchange.com/questions/7623/what-is-hdr-photography