We offer complete Construction Drafting services from the initial design phase to the Permit process. The purpose of this guidance document is to assist our customers in preparing for plan submittal.This page provides handouts for the different applications submitted to the Building Division. Prepare Your Plans: You'll need to submit detailed plans for your project, including architectural drawings, site plans, and any necessary engineering reports. I'm looking to build a home in San Diego county, what is the process before the construction phase I need to consider? Today, I want to share with you how to figure out build costs when building a custom home. Before you start building, making improvements, or sign a lease, research your property. The City's Zoning tells you the rules which land may be used.