No chance of building a custom designed new house in that style for your proposed budget, regardless of whether an architect, building design or draftsperson designs it. Your best bet is to pursue volume building companies or possibly pre-fabricated options if you want to keep it under $400K. Even then your budget is going to be more than likely challenged

Best of luck

Where do you live Katie, that might prompt some more suggestions.

Sadly building a mid-century modern style home is more expensive than building a mass-market builders project home. You don't get much of a new home with even a mass market builder for your budget range, especially when you have demolition costs and site costs to contend with. You would probably be looking at some of their first-home buyer options with minimum ceiling heights, minimum cabinetwork, the cheapest tiles, and the minimum number of power points and light fittings.

If you would like a better understanding of why building a new mid-century modern style home is so expensive then hop across to my blog posting (which I wrote way back in 2013!). The prices are different but the principles are the same:

https://secretdesignstudio.com/building-mid-century-modern-style-home-200k-part-2/

When you can double your budget please contact me.....

Best of luck,

Dr Retro of Dr Retro House Calls/Dr Retro Virtual Visits

For your budget look for a project home builder who has a standard design with the vaulted ceiling and skillion roof. They are out there. Mid century modern can be achieved in such a home with the right furnishings and good kitchen choice.

consult a knock down rebuild project home company for some quotes and tour all the available project homes so that you can walk through an existing building to see what you like...many of the features of mid century modern can be incorporated into a new home but there's also many original features (like separate small kitchen and only one bathroom) that you probably won't like ..instead of aiming for a "mid century modern house" try and identify the individual features that you like and see which project homes include your favourites like a raked ceilings and skillion roofs and that's much more likely to be closer to your budget than a custom build..there are numerous Knock Down rebuild companies that offer 4 bed single story homes with open plan living areas and you could add some of the cheaper extras like 50's repro furniture, colour schemes add decor...

This is all very helpful and let’s me know where we sit budget wise, thanks everyone!

Oswald Homes in WA have some awesome MCM designs. Not cheap however.

Keep looking at volume builders as these are within your price range and are good value if you choose carefully.

Where do you stay and how big house you want?

I am getting mine build 205m2 for 328K.

That's around $1600/m2. I hope that helps you in planning yours.

I live in an area with lots of new project homes, many of them have features that reference mid century modern. I would choose a facade that you like, then do your internal decor in that style, kitchen. bathroom tiles, etc that reference mid century modern. There are lots of modern furnishings that will fit in as well. Even if you had the money and got a builder to build a mid century modern house, it would still be a copy.