Depends on how you set it up and what land vals are like in the area.
You may be able to buy block at 80-90%, meaning you need 10-20% of the block price. Then, divide it using your own money (30k depending on state or council) and use the value of the newly created blocks as equity towards getting a loan for 100% of the construction costs. This is how I'm doing mine right now but your deal and circumstances might be different.
There's many other ways of setting it up though. Best bet will be to talk to a broker who has done this before and can walk through what's best for you.