If you’re hiring a freelance designer who is not licensed then you can get the design fairly cheap. $150-$400 for an average neighborhood yard. If you choose to go that route then be aware that the plan will not likely be to scale or accurate, which will make planning, supplying and bidding your project a nightmare. Licensed architects are considerably more expensive, up to three times as much, but the accuracy will save you time and money on the rest of the project. An accurate plan will keep bidding contractors on the same page instead of their own interpretation of a rough plan, which could be expensive. A clear set of plans are the way to go. Getting the job done right the first time by understanding the value of a professional plan will save you money. The plan is the most important part of the project. Always hire a licensed insured professional for the best results.