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.

Instead of temple with storage, go only for the temple, one open, spacious temple with some glass or any other treatment as per your budget. In the kitchen don't go for the show kitchen thing as you'll be needing dry platform for your gadgets. The sink shouldn't be near the cook top. The offset provided at the end of the main platform isn't correct, instead go for a 27" or 30" platform which is convenient to the cook. In bedrooms, there isn't enough storage. we require dimensions for rest of the layout furniture placement.

Yogender Sharma To make a grass cover, the first thing you will need to ensure if whether the structure of the half basement is capable to holding a green roof. The next would be to waterproof the top again, keeping in mind the soil and the constant contact with water. Once these things are done, you need to locate were it is you want the lawn and ensure you have access to a drainage within or at best near it the area. You will then require the services of a horticulturist to help you set up the lawn. In terms of cost, it really depends on quite a few factors Existing condition of the structure Location Quality of Horticulturist Type of Green Cover etc....

Sneha, There appears to be reasonable demarcation of areas and the windows also add as a demarcating area. You can go ahead with the plan and try to choose products that may gel together. For lighting you may consider false ceiling for separate areas. Thanks, Nitin CORNERSTONE DESIGNS, Bangalore