Why not just add a giant mouse hole for the kids to crawl through ! Much more fun ! ( and easily blocked up again when they grow)

You might consider a sliding partition using barn door hardware. This solution wouldn't take much space away from the corridor, and you can utilize any type of wooden door to match your style.

I would go with the second plan, more or less. Having a fridge right next to the wall seems like a bad idea to me, and I personally can't stand ranges/cooktops on islands--I like the hood venting straight outside. But I would want more countertop to the left of the fridge--when I take food out of the fridge I would want to plop it right onto the counter, and it looks like there's not enough room as it is.

hi Rahul, you need 3 by 3 sq feet space for wc, as per layout you are getting it. i suggest you to avoid mirror in front of wc, as nobody wants to see themselves in that condition seeing themselves. also, door should open on other side so it will hide the wc. Your washbasin should be in right of counter as it give you more space to use for placing your things like trimming machine etc. for quartz go for mitter edge as it look thick without any extra line, which is most preferred today by Designers today. please prefer glass partition between washbasin and shower, as to segregate wet and dry area. and if you want to ask anything further or discuss about your design. thanks, Archiera Design, Delhi