I've been playing around with a pantry location. Originally, I was going to move the pantry into the laundry with some custom shelving and cut the laundry space in half. Now, Im thinking of cutting into the study area and building a wall there, and converting the new space into a long and narrow walk in pantry. Either that or build half a wall and put built in shelving in the study. Building the extra wall will reduce the need to cover in the door way that is currently in place and instead utilising it. Thoughts? p.s. this isnt too scale.

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.

Unexpectedly to me, due to it's location on the crest of the Great Dividing Range at an elevation of around 700m above sea level, Toowoomba has a climate more similar to Sydney than Brisbane. With average summer highs of only 28°C, & average winter highs of 17°C (lows of 7°C & cold wind, as has been mentioned). It's located in Climate Zone 2: Warm Temperature, the same climate zone as Sydney, not Brisbane. Though this climate zone is very varied, so care must be taken to cater for local conditions. As has been advised a few times, have a good read of the Your Home site. Read this section, Designing for Climate, for zone 5: warm temperate. http://www.yourhome.gov.au/passive-design/design-climate Along with having cooler temperatures than Brisbane, the fact that Toowoomba is inland means it has greater variation between daytime highs & nighttime lows (diurnal temperature range). This means that unlike Queensland coastal climates, some thermal mass in the home will be appropriate, so a lightweight structure isn't needed. Although a lightweight structure, on a ground-coupled slab (with polished concrete or tiles in North facing living areas) would be a good idea. As the temperature is so much cooler than tropical Queensland climates I'd advise against going too overboard with a pavilion style house. As I think it would be too cold in winter. Maybe something like two off-set rectangles, joined in the centre. Kinda like dreamer's inspirational picture, without the middle section, the two rectangular sections joined. Or just go for a more traditional rectangular house. In any case, like just about all Australian climates, you should try to build a house that is generally rectangular, the long sides facing north & south. This will give an opportunity for northern sunshine to enter home in winter, while the shorter eastern & western sides will limit the effect of hot summer western afternoon sunshine. Though I guess this house shape won't look great from the western road, as it will look very narrow from here. You could fatten it's street frontage a little bit, by having the garage to the south of the rectangular house. With such a large block you'll be able to build something that works for you. But as OKLouise said, don't just pick a plan for an average narrow block. The plan you picked is not really suitable for your block. I'd also recommend you do a lot of research yourself. As has been shown with the plan you've received, you can't rely on the builder to design a plan that will work best for you, that is appropriate for your location. So read up on the Your Home website. It's an invaluable resource when it comes to building a comfortable, energy efficient home.

As an architect, I have previously been taught that creating a sustainable home is about designing it so that living in it lowers energy and water use. This is achieved through designing for orientation, using thermal mass and specifying fixtures and finishes that are low impact, reuse water on site, etc. However, the latest research is showing that this is not enough to impact the rate of climate change. And that what we build from needs to be considered in order to make a dent. This is because the timeframe required to see the benefits of sustainable living in a home, is a longer play than the upfront construction from low tox, low energy, minimal footprint materials and methodologies. It has to be a two-pronged approach. Choose materials and products, and constructing efficiently with low energy and low waste. Having carbon neutral homes. And designing homes that over the long term, are low in energy and water consumption, and support the health and well-being of the occupants. A project was established in mid 2017, called “The Building Code Energy Performance Trajectory Project”. It involved the Sustainable Built Environment Council and ClimateWorks Australia, and is described as an industry-led initiative seeking improvements to energy requirements in the National Construction Code. The report was released recently, and what was amazing in this report was to read that 58% of Australia’s buildings in 2050, will be built after 2019 … which means that there’s huge potential to impact their performance and the environment through better energy requirements. And these energy requirements have not been rigorously updated since 2010, despite electricity prices having doubled over that time. Detached housing will comprise 64% of the new construction between 2019 and 2050. So every homeowner has the opportunity to seriously change the landscape of energy use and efficiency in our country. There’s some sectors of the industry really pushing back against this … largely because they believe it will dramatically dent their profit margins to have to build houses with higher star ratings. Australian homes, on average, perform very poorly, and our expectations are super low. Steve Baczek, an American architect, said something about American houses that I think sums it up for Australia as well ... “It’s not that High-Performance Houses cost too much; it’s that our idea of a fairly priced home is based on a history of building houses to meet embarrassingly low performance benchmarks. Clients don’t realise the difference between built to code vs built to last”.