So much can happen on an exterior...trim, exposed rafters, doors, windows, siding, stone, brick, stucco, roofing, gutters and downspouts....hire an architect or a design/build firm to help answer these questions prior to building....like hiring an interior designer for help with furniture, these professionals will help decide the style of the exterior of the house and how that style interacts with the function of the house.

Anita Vitrified tiles by themselves do not particularly allow the walls to breathe, and hence are prone to cracking. That being said they do not collect moss either. If you are however set on using these tiles, I suggest you use them in a mosaic fashion, where smaller tiles or broken pieces are used. This will allow the wall to breathe, though the moss collection might be more due to the greater amount of grating.

SInce it is a compact apartment as most apartments are, having minimal decor with maximum storage will do best justice to the flat. U can have a storage cum visual space seperator which keeps the drawing room seperate from the private areas. The bedrooms can also be kept simple with storage beds, having sliding wardrobes with mirrors which gives a feeling of space. the kitchen also can be kept simple sleek with few highlights.

Farooq, First one is a glass finish Subway tile. It looks good but many people back out due to budget issues as it is relatively costlier. Second image is of a brick cladding wall paper. However, similar looking ceramic tiles, mud tiles are also available locally. IMHO, red brick sand tile gives a more natural effect.What suits better would depend on the overall design of the house. Thanks, Nitin Cornerstone Designs, Bangalore.