I think a comfortable distance between the island and the counter is around 42". It seems that you have only 30" between your cook top and the counter. I might be a little too tight. The wall between the entrance and the kitchen could be 4' long instead of 6', you would then be able to move the island a foot which would give you more room between the cook top and the island. Could you switch the location of the toilet and vanity in your dad's bathroom so your enter facing a vanity instead of a toilet which is a lot nicer.

Thanks a lot for your valuable suggestions and comments Rusty Empire,decoenthusiaste,emmarene & Chikka BangBang. My home is located in a small village in India. We initially planned to renovate our old home. But during the middle of renovation work, we changed our mindset to build a new one. Hence we made a house design by ourselves(3BHK) with the help of our local builder and to save the cost we tried to reuse all possible materials that were extracted while demolishing our old home((i.e.., like red tiles placed on the top of left side of porch). The project is in last phase, now I feel that still we could do something to enhance the beauty of exterior of home by getting some ideas from experts. I like to thank everyone once again for sharing your thoughts! @Rusty Empire : The entire building shown in pic is a single building, because of our inexperienced design it looks like disjointed:(:(. We just finished the painting of primer coating, yet to paint the final color. The pic you posted with color looks awesome, planning to paint the same color. I believe it would change the entire view of building @decoenthusiaste : The entire building shown in pic is a single building. Will post more pics in coming days, pls review it and share your thoughts. @emmarene : Right now I'm at my work place, so I don't have a main entrance pic with me. Will post it by this weekend. Please review it and share your valuable thoughts. @Chikka BangBang: That's gr8 idea, will think abt it. Thanks!

For your office , you can go for the right side second entry from the main entrance of your house. This way you can make a full glass, sound proof, no disturbance and a comfortable in house office . you can have one more entry from inside for the easy accessibility for the personal use. In your dining area,there's a door leading to the balcony. Make it a 3 track glass door for the good daylight and a natural view from your hall also. In the kitchen, make your washing area of the size 10'8"x 4' . This way you get two perfect rectangle for a perfect planning for the kitchen as well as the washing area for utensils and washing machine.

This is my ground floor plan and some renovations are planned in ground floor ,that is attached too,please help me with me to draw the first floor plan(3rooms-1master bedroom with attached bathroom,and 2 rooms only a sitout too)