Start out with an hourly rate for the discovery phase until the general plan and design is set. AIA Contract Documents are the more than 180 forms and contracts that define the relationships and terms involved in design and construction projects.Apply to Architect, Software Architect, Architectural Designer and more! Are you looking for architects for commercial buildings in Los Angeles? Look no further than our trusted team at Letter Four. I use a simple, two page, inhouse developed contract that includes all the required items (per California Architects Board requirements), plus a few items. All Consultants shall complete and submit the below Consultant Invoice Cover Sheet and Checklist when submitting an invoice to the BOE. On this site, you can submit plans, specifications, and supporting documents for review and approval, pay permit fees and apply for a permit. EPIC-LA. BSOP.