About 5 years ago I purchased a block of land that could be DA approved for 4 townhouses. I hired an architect and additional consultants on this recommendation (arborist, traffic engineer etc). Pre-DA determined that his concept plan was unsupported, but he recommended that we push on. Months later he finished the DA drawings and submitted but council said changes were required as many controls were not met. I kept saying "just change the plans so they are compliant and we can get the DA approved". A few more months to make changes and resubmit but again not compliant. Council said they will wait for one more set of plans. A few more months and they submit plans again. Again non compliant. They admit that someone in their office "made a mistake" and shouldn't have submitted those plans. Council are fed up and reject the DA. Whole process has taken 12 months and I am about $80k out of pocket. Eventually I got my DA through another firm, but had to sell the block and cut my losses as the holding costs became too much. It's been 5 years to get back to where I was, but I wonder if the initial architects had a duty of care or at least be held responsible in some way? Is this what PI insurance is for? Any thoughts or advice would be much appreciated.