Concrete costs are typically 1/3 of a pool's budget. Concrete usage is dependent upon the size and complexity of the pool. The more curves, the more concrete required. Soil tests and location dictate the engineering requirements for potential blasting, casings, and piers, which are often required in mountainous situations. This will also contribute to the cost. Greater customization, additional water features, tile and decking selections, retractable covers, and other options will also contribute to the final price of your pool.