PLAN DESIGNER for owner building a 300sf addition to his house to include one bathroom. Looking for a designer with sufficient connections and experience to get my project through their permit maze with absolutely minimum delays; willing to pay extra for this feature. My idea has it 17x14 attached to back wall of house, all plumbing is right there. The house is 80 years old, built on pier blocks. Del Paso Heights, a few blocks east of Rio Linda Blvd, off Arcade