First, I would ask the builder to give you the dimensions of the furniture used in the plan. Since they've already done the legwork-you will know which pieces will fit. Many times folks go the the furniture store and end up with a huge sectional and it over powers the room.
Second, just get what you love! You have to live there. Start to create an idea book in Houzz. You'll start to see a pattern. Then just find a sofa like the one in your pic that is in your price range. Just keep repeating until you have all your pieces.
Same thing with wall decor (which I would do last).

Have fun!

Good evening)
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@nancy - thank you for the advice ! I am already going through all the ideas on houzz and it is very helpful but I fear my choice may not be the most apt one and may not looking all that great at the end of the day.
I wish to make a modern eclectic house . So do you have suggestion for kind of sofa (I like L shaped) , kind of lamp , and a storage space in living area
You suggestion would be really valuable :)
Thank you!

@gladiator- thank you :)

Post some pics of the ones you like and I will try to help in any way I can!

Correct me if I am wrong but I believe that having a round table is better than square or rectangle one as it may occupy less area
I am thinking of painting my walls all white and add dash of colors through cushion, showpieces, dining table chair (I am thinking of having a white dining table)
And grey or electric blue sofa

I think the idea is great. To paint your walls white but at same time make it look vibrant and colorful by adding colors to the soft furnishings and other accessories. Great going

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