Two construction drawings, which typically must include: floor plans; wall section; items listed in the Residential Building Application. Learn about construction and development in the City.Apply for a construction permit. A collection of one or more commercial permits (including the application record) that define one owner's construction project. To request plans for viewing or copies, please submit a request via email. If you haven't yet, download our FULL guide to building a new construction home in downtown San Antonio! For most projects, the River Authority will want a full set of plans and specifications. Earlier coordination is better.