Build a two story with a garage under the top story. It will have to be long and narrow lot is not wide. 4 bedrm s will be tight, looks like you only have rm for about 1200 sq ft incl garage. Or you could put front door on side behind garage and stairs inside to go up to bedrooms and bath rooms. Have a small bathroom downstairs. With living area and kitchen, with dining area.

can u share photographs/layout of existing kitchen & proposed extension area ? With that will be able to suggest you on the design.

Option 1: If one extra bedroom not possible then can go for living room cum bedroom using movable partition in living area (next to small bedroom)? Option 2: A) living area ( next to small bedroom) convert in to bedroom with movable partition. B) cover kitchen current entarance & make new enterance near or next to main home enterance C) in centre rectangle area convert to living & dining room like this manual drawing plan Please suggest which option is better or any new suggestions

Deepak sir ,just saw yr plan. Your Toilet that is attached to M.bed can be compromised .It's outer wall seems to be 9" thick. Reduce the bathing space inside by 9" and include that in your balcony. Ofset created an have a front load washing machine, a counter on top to have an extra wash basin. The toilet should have translucent fixed glass and exhaust on top. Hope this helps.