The exact amount of investment required for a cattery is difficult to generalize. Generally speaking, in first-tier cities, due to the higher cost of living, the investment may exceed 500,000 yuan; in second-tier cities, the investment is relatively lower, estimated to be over 300,000 yuan; while in third-tier cities and below, the investment may exceed 200,000 yuan.

However, this is only a rough estimate, and the actual investment amount needs to be carefully planned and budgeted based on specific circumstances.