Comment by Mvhsz

I would add that an architect’s job is to find the little details that make your big investment better. One thing I associate with off the rack house plans in big developments is having the shades drawn all day because otherwise the sun will shine right in your face. An architect looks at the site and the sun and adjusts window heights and overhangs to suit. Amongst many other details. A house being such a big investment, hiring an architect seems wise.