Looks like saltpetre which is leaching through the brick. You may hae waterproofed the outside but what about water leaching from the roof. Water will find a way.... Here is an interesting link... http://www.arcane-industries.co.uk/l1/p281-dampness-saltpetre-condensation.html

Greetings From Dream Design, As per your Requirements we are suggestion you some changes -White color -where It is Grey -Dark Cream -Where Blue as it will highlight that area and also well goes with Bricks -and Trims take Dark cream -For Shutters you can also use Cream color So use the White and dark cream with combination as brick part is already dark If you need more help Pls mail us. Thanks Dream Design

HRD , Love song is good as well. TBF the shades starting with L are so close that it's difficult to identify one from another :) Thanks, Nitin Cornerstone Designs, Bangalore

Can you please suggest a best off-white color and griege/grey shades for highlight I like the concept in the below picture, can you suggest what is the closest shades (Asian paint) for this off-white and greige hightlight