I have high ceilings downstairs 2.7m and std door and window height and looks fine but do have wider front door 870mm don't like tall and skinny doors. Having said that on one wall do have higher windows and they look fantastic but that was to catch sun and block out ugly neighbour house so std window size just fitted higher but look so good in my downstairs open plan area could have gone larger height windows all around but don't have verandah across front house that would look odd with higher windows and no light benefit and more heat n cold thru glazing. Good luck with your decisions

Hi oklouise, Below is an image of how the houses should fit together. I have included rough measurements for sons house. Shared garage 6x6sq m - shared laundry sewing/ utility/mud room 6x3.3sq m - media room 5x3.8sq m - entry 1.5x3.3sq m - office 2.5x3.5 sq m - bed 4 3x3.5 sq m - bed 3 3x3.5 sq m - main 4x4.5 sq m - wir 4x1.8 sq m - ensuite 4x2.8sq m - bed 4 3x5.4 has linen c/board in hall way - bathroom 2x3.5 sqm - toilet and 1 vanity 2.7x1.7 extends into family rm - family rm 5x5.2 sq m - dining 5.3x3.4 sq m - kitchen 4x2.8 sq m - b/pantry 1.3x2.8 sq m - island 3x.9 sq m - hall 1mtr wide - outdoor 3.5x4.7 sq m may change - front porch 3.5x1.8 sq m - pool behind family area maybe. I will put measurements for my pantry and vac on tomorrow morning. This image might look slightly different to his latest plan which I uploaded earlier he has altered a few things overall still same footprint. I'm pretty new to anything to do with designing house plans so thanks for all of the suggestions and plans so far. I definitely like the way you have narrow shelves for storage in your pantry. but

there is also a difference between ceramic and porcelain tiles - often these issues come down to a combination of (a) tile batch size/consistency (b) tiler's skill/capacity (c) communication in that if the tiler opens the tile box and he can't practically achieve what he thought he might because of the general discrepancies in size then they should at least speak to you before they start. So often with many issues in this game, it's about managing people's expectations and having open/honest discussions at the right time. When this breaks down, problems and disappointment is more likely to occur......so coming back to it, if you have high quality porcelain tiles that are millimetre perfect, square and flat then the capacity to lay them with minimal spacing is higher. Also the substrate/prep plays a part as if it's all out of whack and not perfectly straight/plumb/square then you'll be in all sorts trying to achieve the minimal tolerance detail.

Appreciate the thoughts and this may be a solid option elsewhere in the country but in my circumstances I don't plan to be moving from this property any time before the kids are 18. It is located in Sydney's inner west, and in a specific high school catchment I plan to take advantage of when the kids are older. Stamp duty to buy the property was close to $100k and if moving out even in ten years to a larger property; that averages $10k a year spent on stamp duty. I know 115m2 internal is tight, as is the fixed layout due to existing bedroom walls, ceiling heights, wet areas, and the like - but there has to be a way to make this work... I have read that 4 bedroom apartments should be 102m2 or bigger. I am willing to make compromises where possible but I really want to create that extra separate room "Multi-purpose room" which can double as a study/work area/kids play area/media room/ad-hoc sleeping accommodation". Paul Di Stefano: I don't think these changes essentially equate to 'rearranging a sock drawer' - this is my PPOR so I am not too concerned what other buyers want or resale value if I plan to hold the property for 10-20 years +... (any trends we design for now may well be outdated by then anyway). Many buyers highly value indoor-outdoor integration. By moving the kitchen to centre, it opens up the rear and creates indoor living->outdoor living link. If I get IKEA flatpack kitchen and DIY as much as possible - have a friend reroute the water/drainage/+his licenced electrical friend...hopefully this work would cost sub-$20k. Adding the sliding door to rear is $2.5k. Ensuite, bathroom and laundry I believe I can fitout for $10-15k all up- let's say 15k (again, tiling, raise flooring, showers/fixtures/flat pack laudnry cabinetry install all done in-house without tradies). The only thing I really need professionals for is to move the gas line in kitchen, BIR installs, stone benchtop, and maybe a few adhoc wall demo/construction/doorway moving - lets call that 10k. All up ballpark that is 47.5k? Sirius- If I go with your style plan then I lose the potential 4th bed space and have no where for relatives to stay, babysitter, nanny; etc :( Maybe it is a possibility that the main living space be used for lounge room and kitchen, we can always put dining table in the Multi-purpose room, then when that room is needed for sleeping accommodation, the dining table be moved to the side and kids can eat dinner on island bench bar; lounge or outside table... ? those doors to each side of the fireplace as you suggest - this space is very cramped outside (2.45m width) and potentially would be used to store trailer or garden shed, there is an old terrace built on zero-boundary there and they have a DA to go 2 storeys; which will shadow the whole area. This is why I planned to make the rear south corner a raised deck and try to channel house activity leading out the existing glass french door to that deck, or the rear sliding door. See photo-(my house is on the left, terrace zero boundary on right, and front on is a wooden dividing fence which on the opposite side is the driveway/1 car park and front street.