Building Permits

Required Documents

In addition to the Building Permit Application (PDF), please provide the following documents when applying for a building permit:

  • THREE (3) SETS OF DRAWINGS TO INCLUDE:
    • Electrical Plans
    • Plumbing Plans
  • TWO (2)SETS OF TRUSS CALCULATIONS
  • TWO (2) SETS OF ENERGY CALCULATIONS
  • TWO (2) SETS OF PLOT PLANS
  • TWO (2) SETS OF SPRINKLER PLANS (when applicable)
  • TWO (2) SETS OF SOLAR PLANS (when applicable)

General Information

1.  Plans shall be drawn to scale, indicating location, nature and extent of work proposed.

     Show in detail that the project conforms to the provisions of the Building Code and all relevant laws, ordinances, rules and regulations.

All sheets of the drawings shall be the same size.  Minimum size acceptable is 8 ½ x 11, preferred size is 11x17.

2.   Provide the wet signature of the designer on all pages of the drawings.

3.   Provide a signed statement by the designer stating he/she has “reviewed the truss calculations for (the specific structure) and all loading and              design criteria have been met.”

4.  If structure is engineered, provide wet-signed and stamped structural calculations.  All details, nailing, etc. must be transferred to the plans.

     The architect or engineer providing structural calculations shall stamp and wet-sign the drawings or provide a statement stating he/she has                 reviewed the blueprints and all structural criteria per calculations have been incorporated.

5.  All structures, such as business, commercial, industrial, with offices and bathrooms, and other such structures of similar type of category, are             subject to American Disabilities Act (ADA) requirements and must show accessibility on original plans.

Plot Plan

  1. Minimum sheet size 8 1/2 x 11
  2. Assessor’s Parcel Number
  3. North arrow
  4. Show property dimensions
  5. Show ALL buildings and/or structures on property (both existing & proposed)
  6. Indicate distances between ALL building and/or structures and to property lines
  7. Show utility locations; water supply system; sewage disposal system and leach field
  8. Show all streets and easements.  Identify streets
  9. Show the location of the access road

Floor Plan

  1. Minimum sheet size 8 1/2 x 11
  2. Show dimension of all rooms
  3. For remodel and additions include plans for existing and proposed structures.  Clearly distinguish between existing and new construction
  4. Show location of all electrical outlets and electrical panel

Foundation Plan & Floor Framing Plan

  1. Minimum sheet size 8 1/2 x 11
  2. Provide detailed foundation plan; layout, piers, grade beams, etc.
  3. Show floor framing, size and spacing
  4. Show anchor bolt spacing and size

Exterior Elevations

  1. Provide elevations for all four sides
  2. Show appearance of doors, windows
  3. Clearly distinguish between existing and new construction

Details

  1. Show as many cross-section as necessary to clearly indicate the construction; i.e. stairways, vaulted ceilings

Who May Prepare Plans

State law regulating the architectural and engineering professions describes who may prepare plans for buildings.

Any Person may prepare plans for new buildings or additions to buildings, as follows:

  1. Single family dwellings of wood frame construction not more than two stories
  2. Multifamily dwellings of wood frame construction not more than two stories; no more than four dwelling units on any on lot
  3. Garages and other appurtenant structures of wood frame construction
  4. Agricultural and ranch building of wood frame construction
  5. Interior nonstructural alterations which do not affect the structural system or the safety of the building
  6. Structures 20’ or more in length or width may require engineering and structural calculations

However, any of the above buildings which are not of conventional wood frame construction or have unusual design features, or where there is insufficient lateral bracing shall be designed by a registered civil engineer or licensed architect

Additional Regulations

  • If the structure is engineered, please provide wet-signed and stamped structural calculations. All details, nailing, etc. must be transferred to the plans.
    • The architect or engineer providing structural calculations shall stamp and wet-sign the drawings or provide a statement stating he/she has reviewed the blueprints and that all structural criteria per calculations have been incorporated.
  • Plans shall be drawn to scale, indicating location, nature, and extent of work proposed.
    • All sheets of the drawings shall be the same size. The minimum acceptable size is 8.5" by 11", and the preferred size is 11" by 17".
    • Show in detail that the project conforms to the provisions of the building code and all relevant laws, ordinances, rules, and regulations.
  • Provide a signed statement by the designer stating he/she has reviewed the truss calculations for the specific structure and all loading and design criteria have been met.
  • Provide the wet signature of the designer on all pages of the drawings.

Smoke and Carbon Monoxide Alarms

When a permit is required for any repair, alteration, addition, smoke alarms and carbon monoxide alarms shall be installed in accordance with CBC 907.2.11, CRC R314, CRC R315. The permit cannot be finaled until a Smoke and Carbon Monoxide Alarm Certification (PDF) is signed by either the Owner, Contractor, or Authorized Agent.

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Contact Information

Documents should be submitted to the Building Unit, which is located at:
220 12th Street
Colusa, CA 95932

You must call the department at (530) 458-0481 before coming in to submit building plans.

Applications are accepted Monday through Friday 7:30 am to 3:30 pm.