It’s always cheaper to make your mistakes on paper than during construction.
Something you think you might like could be unworkable, too expensive, or unattractive when you actually see it on paper.
You should ask several builders for estimates. With your own plans you’re sure everyone is estimating the same job, not comparing apples and oranges. Also with detailed plans a builder can give a more accurate estimate. Most builders add in a “fudge factor” or contingency fund to cover possible changes when the customers are vague about what they want.
Working with an architect or home designer can save you thousands of dollars on construction.
Another option is a “stock home plan” from a plan service such ours, CADSmith Studio . If you find a stock plan which only needs a few changes your builder will probably be able to accommodate you for no additional charge. See our Portfolio of Plans for ideas.