Commercial Plan Check Submittal Requirements

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 Buillding 1

Please visit the 'Obtaining a Permit' Page to view any

restrictions on Plan Submittal Requirements


Commercial Projects are required to be prepared by a Licensed Architect or Engineer. On each sheet of submitted Plans, provide the preparer’s name and telephone number and wet-signature and his/her stamp as prescribed by California Business and Professions Code '5536 


Plans for commercial projects, including tenant improvements, shall be a minimum of 24" x 36", printed and stapled together. Plans drawn in ink or pencil will NOT be accepted for submittal.


  1. Site or plot plan to include but not be limited to:

    1. A legal description and general location and assessor parcel number.
    2. The owner's name, address and telephone number(s).
    3. The use, size and dimensioned location of all existing and proposed structures, including all garden and retaining walls. Indicate all required setback distances.
    4. The location and sizes of all existing and proposed utilities (sewer, gas and electricity).
    5. The elevations of the building site and surrounding area. Indicate flow direction for storm water run-off.
    6. North arrow.
    7. All property lines, easements and rights of way.

  2. A dimensioned floor plan to include but not be limited to:

    1. The use and/or activities for all rooms and spaces.
    2. Door and window sizes, locations and types.

  3. A dimensioned foundation plan to include but not be limited to:

    1. Thickness and compressive strength of the concrete slab or;
    2. Size, location, direction and spacing of all joists and girders.
    3. The specific location, size and depth of all spread footings.
    4. Locations and required embedment of all required hold downs.
    5. The location and size of required underfloor access and ventilation for raised floor conditions.
    6. Show locations and dimensions of all required continuous footings.
    7. Indicate size(s) and spacing(s) of all anchor bolts.

  4. Building elevations of all orientations applicable to construction to include but not be limited to:

    1. Exterior wall finishes and the extent of all required shear walls and/or let in bracing.
    2. Roof slope and type of covering.
    3. Window and door location and types to coincide with the floor plan.

  5. Framing plans and sections to include but not be limited to:

    1. Wall framing size and spacing.
    2. All required building insulation locations and R-values.
    3. Cross sections which are properly cross referenced to the floor plans and structural details.
    4. Provide referenced details for all unusual construction, walls, framing connections, dormer frames, etc.
    5. Indicate all roof framing member sizes, locations and spacing.
    6. All post support size and locations.

  6. Plumbing plans shall be provided when applicable to include:

    1. A drain, waste and vent plan/or isometrics for all newly proposed plumbing fixtures, including point of connection to existing systems.
    2. Provide calculations to show how the water lines were sized (Table 10-2 or appendix A) and include the following:

      1. The total number of fixture units for the fixtures installed at this time or proposed.
      2. The maximum developed length of supply pipe from the meter to the most remote outlet.
      3. The difference in elevation between the meter or other source of supply and the highest fixture or outlet.
      4. Pressure in the street main or other source of supply.
      5. Indicate the friction loss per 100'0" for the design pressure.
      6. Provide a tabular breakdown based on either table 10-2 or friction loss showing the maximum allowable fixture unit count for each water line size used and indicate for both flush tanks and flush valves (if used).

    3. Provide gas line sizing calculations and/or isometrics to include the following information:

      1. Show the maximum developed length from the gas meter location to the most remote outlet on the system.
      2. Show the total CFH input on the system and identify the input for all connected equipment.
      3. Size each section of branch piping by measuring the distance from the meter to the most remote outlet on that branch.

  7. Electrical plans to include but not be limited to:

    1. Per Art, 215-5, provide a single line diagram of feeders to include the following:

      1. The area in square feet of the building or tenant space.
      2. The total connected load before applying demand factors.
      3. The demand factors used.
      4. The computed load after applying the demand factors.
      5. The sizes and types of all conductors to be used.

    2. Calculations for branch circuit loads per Art. 220-3.
    3. Show location and sizes of all services, panels and subpanels.
    4. For new loads/panels for additions or tenant improvements, show the existing main service panel size, the existing load to the service and the proposed new load.

  8. Mechanical plans to include but not be limited to:

    1. The location of all existing and/or proposed mechanical equipment (i.e. FAU, A/C, evaporative coolers, exhaust fans, make-up air units, etc.).
    2. Capacities of equipment in BTU/HR and CFM (total and outside air)
    3. Access to units.

Required calculations shall include but not be limited to:

  1. Structural design for both all vertical and lateral load resisting elements (if not conventional in nature).

  2. Truss calculations and details (wet signed by engineer) and layout showing I.D. numbers and locations.

  3. Energy conservation design forms and calculations.