There are hundreds of suggestions that can be made on how to update, renovate and re-design a layout to make it functional for you and allow it to respond well to the built environment. Engaging an architect or building designer at this stage may not be something you're willing to do, as spending money for plans on a house you don't own would not be the ideal situation. The issue with this is that the design phase of a project takes a lot of time and consideration. My best advice would be to play around with the plans and create some sketches, whether online or on paper. If you are happy with the possibilities then buy the property. Any house can be transformed, but whether or not you are satisfied with the transformation is a personal choice only you can make.

obviously there are some "professionals" operating to arguably less than professional standards and unfortunately they contribute to the confusion of the value of what we do, and make it harder for you guys to trust us at the time that you actually most needs us. There is also a significant difference between a Pro who knows what their doing properly clarifying/translating information as required throughout the design process, to having the subtleties and complexity dumbed down for the sake of "plain language" that risks misinterpretation and underestimation of what's involved. I completely agree, it's often made way harder than it needs to be, and I think again it's horses for courses and certainly there are many professionals who would arguably be best utilised for their skills specifically contained to within the professional industry boundaries, yet others who are naturally better at "bridging the gap" and liaising/working/communicating seamlessly with both the clients and the industry. Unfortunately, to the average punter it's very very difficult to distinguish and gauge these critical key differences between the various Pro's.

siriuskey, Yes, the courtyard is open to the sky (no roof over it), I assume this is what you mean by double story. Ref. below photos, I would love to get this look, especially the first and last photo, where you can see family living space from the first floor. I can't achieve this in my plan as it eats a lot of floor space upstairs. The referred plan (photos) has a very big void combining staircase, hallway and dining area. I know it is not easy with cooling and heating when you have such a big void. So, I explored a few ideas (with my limited knowledge on this topic) before achieving the current floorplan. I have also thought about, in my current plan, extending the void on the staircase to the dining area (it is more like L shape) but i wasn't sure if that makes any difference. keen to hear your thoughts.

I'm no expert but just my thoughts if it was my house - The bedrooms are on the small side, so perhaps think about how they will be used - do your children need space to play or do homework in their rooms? Is the 4th bedroom for guests or will it be used as a home office? In bedrooms 2 and 3 the beds are below the window - are the windows high enough to allow a bedhead/to not lay down with your head against the window? What will be in the main bathroom - shower, bath, single/double vanity? What are you thinking layout wise? I'm confused by the kitchen, especially the pantry access given the corners are blocked by other benches - is it meant to be a walk in pantry or just normal cupboards? The hall is long and narrow and you need to go past all the bedrooms before you get to the living space. Not sure how well this will work, but I've only lived in places where the entry is adjacent to living space. Love the idea of having a separate self contained space for your parents - as others have said bathroom is too far from either bedroom, and the entry near bedroom could be an issue.