What a beautiful house, Shahbaaz! I live in a similar house - a 150-year-old colonial bungalow in Kumaon. You have already received lots of excellent advice from better-qualified people, so all I would say is, keep its age and heritage character the central theme. The white tiles do clash, I am afraid ... flooring with terracotta tiles would echo the roof and look lovely. The columns and the arches over the doors and windows are amazing. But I'd say, leave it all chuna-painted - there's a beauty and softness to it. Don't let the painters add too much neel (indigo) in the limewash -- in the hills where I live, they put far too much if I don't watch out and the result is a harsh white. Natural lime has a softer, creamy look.

I would suggest you to cover some part or whole of the terrace floor with artificial grass. It stays green all year round and is also very easy to maintain as compared to natural grass. However, leave the place where you plan to install BBQ basin as it may get damaged because of fire. You can even place a swinger and 1 or 2 garden table set.

Hi dear I will suggest 1. keep your floor clean opt for wooden tile flooring or real wooden plants 2. play with walls like ruf tuf texture , vertical landscaping , 3. hanging trunks for lighting elements 4. play with furniture selection 5. ceiling u can go natural like cemented look only sharing few pictures here

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....