oops! sorry, not sure what happened there. Btw thats the poor looking facade!!

the plan makes excellent use of the available space but unable to accurately read all the dimensions some of my suggestions are based on estimates and aim to allow more flexible arrangements for furniture and potential space/cost savings and include: removing the front porch in favour of an entry deck (with simple skillion roof and allows for a more generous reversing bay, visitors' parking space) combined step up kerb and garden beds, central entry through the old laundry, pantry relocated, remove rear verandah in favour of extra alfresco and more light into dining area and bed 3, enclosing below stairs for wiw, adding a shower in the upstairs powder room for the boys or visiting grandparents to have their own bedroom suite upstairs or down, walk in storage at the top of the stairs and more generous study area in the lounge btw the family meals room seems like it should be longer than shown in the original plan and based on available space..which is correct?

My thoughts. Firstly, as has been said, you'll get better results seeking professional help, especially for such an unusual design. The external surfaces are an expensive part of a build. The larger the external surface area per sqm of footprint, the larger the cost per sqm. Seperate wings & courtyards increase the external surface area greatly. This plan has a very large external surface area, so will be costly per sqm, for what is already a very large dwelling. Separate wings also increases hallways & circulation space, which some people find wasteful, & increase the time to move from one part of the house to another. Instead of a U-shaped house, how about an L-shaped house? This would reduce the external surface area of the build & the amount of hallway space, reducing the cost per sqm & the size of the dwelling. With an L-shaped home most rooms could face the outdoor space in the NE side of the block, but some (possibly the minor bedrooms) would likely face the southern street. So, a couple of questions; Is this a newly developed or established area of Sydney? If it's an establish area with neighbours close by, could you post a screenshot of a Google Maps satellite image, to get an idea of outlooks & whether there will be privacy issues with neighbours? How quiet is the southern street? Are you happy to have rooms facing this street? How much busier is the western street? Is it possible to locate the garage facing the western street, or is it too busy for access? I'd much rather have the garage face a noisy street than the master bedroom (although the ensuite will help a bit). Also the western side of a dwelling is a great place to locate a garage, as it shields the house from the hot afternoon sun. The west is not a good place for bedrooms (although again, the ensuite will help). On that note, have a read of this, paying attention to the section on passive design & orientation. http://yourhome.gov.au/passive-design/orientation As for your current design, your bedroom wings are likely to shade your living areas for much of the day in winter. A skillion roof with north facing clerestory windows, as shown in a few of the pictures in this thread, would help get winter sunshine to your living areas. Although an L-shaped build would allow more northern light to the living areas than the current U-shaped plan. Best of luck with the build.

I think you may be able to redistribute the storage in the linen room into the walkways, by taking some space from bed1 and bed2, and having cupboards on both sides of the walls. Some of the handleless cupboards can look quite inconspicuous. You would then be able to rotate the laundry, and shift the kitchen and dining as recommended by grachel87 towards the front of the house. would there be 2 doors to the main bathroom? Having lived in 2 places with bathrooms like that, I feel that they can be inconvenient when someone forgets to unlock one of the doors, which would then force going through someone else's room to unlock the bathroom. Removing the door could also give more flexibility in the layout of both the bathroom and bedroom.