u/BonitaBasics

I’ve done a rather decent job so far with incorporating natives into my landscape/learning the basics and it’s been a joy to do so. Looks like a possibility we’ll be adding a good sized adu in our backyard for my parents which will require changing the entire landscape. We have a single family
Home in San Diego on about less than a quarter acre which will soon have two properties on it. If I were to work with a native plant landscape designer, does anyone know what professional services like this would range? Is it safe to say 20-40k? I know it’s all hypothetical and depends very much so on hardscape etc. I just was wondering if anyone had any rough ideas.