HOME RENOVATION LOS ANGELES Design and Consulting Fees: Using the services of an interior designer or architect can insert into the cost but generally leads to a more customised and professionally executed job. Design costs may vary greatly but ordinarily vary from 10% to 20% of the whole renovation cost. https://directorypixels.com/listings12805564/home-renovation-in-toronto-city-of-toronto-home-renovation-permits-no-further-a-mystery