Browse Forums Building A New House 1 Jun 24, 2013 5:32 pm Just wondering if anyone can tell me what the extra cost of building with a BAL 19 or 29 can cost.. Please tell me area, size of house and builder it's with. Eden Brae reckon on our 27sq house in western Sydney a BAL 29 is 9k and 19 is 7k I thought the prices would be a lot different Eden Brae Drysdale 27 | The Blog 3 4167 10 years ago was a different software than we use now. it has had a lot of changes over the past years. Improvments to the software and changes to how Nathers models need… 8 1474 |