Building Division Information
The Building Division performs permit reviews, code interpretations, building inspections, and code enforcement.
What work does not require a building permit? Click here for a list
Apply for a building permit here!
Contact a Permit Tech with any questions at firstname.lastname@example.org or 360-336-6214.
- 2018 ICC Codes including Washington State Amendments (IBC, IEBC, IRC, IFC, IMC, UPC, etc.)
- 2009 Washington Accessibility Code
- 2018 Washington State Energy Codes @(Model.BulletStyle == CivicPlus.Entities.Modules.Layout.Enums.BulletStyle.Decimal ? "ol" : "ul")>
The WA State Building Code Council voted on May 24, 2023, to delay the effective date of the 2021 codes for 120 days. The new effective date for all building codes is October 29, 2023. Previously, the effective date was July 1, 2023.
Here is a link to the new Wildland Urban Interface Code (WUI). This is a new code that will come into effect with the 2021 Updates. This may be a significant impact to projects in our area.
- What work does not require a building permit?
1. One-story detached accessory structures used as tool and storage sheds, playhouses and similar uses that are 200 square feet or less. (A planning permit is still required)
2. Retaining walls that are not over 4 feet in height measured from the bottom of the footing to the top of the wall, unless supporting a surcharge.
3. Sidewalks and Driveways (may require an Engineering permit)
4. Water tanks supported directly on grade less than 5,000 gallons and the ratio of height to diameter or width does not exceed 2 to 1.
5. Painting, papering, tiling, carpeting, cabinets, counter tops and similar finish work.
6. Prefabricated swimming pools that are less than 30 inches deep.
7. Swings and other playground equipment.
8. Window awnings supported by an exterior wall which do not project more than 54 inches from the exterior wall and do not require additional support.
9. Fences less than 7 feet in height from adjacent grade that do not have masonry or concrete elements above 6 feet only when a fence permit is obtained from the Development Services Department.
10. Decks, associated platforms and steps accessory to residential buildings constructed under the provisions of the IRC which are not more than 30 inches (762 mm) above adjacent grade plain and not over any basement or story below when a permit authorizing the location of said improvements is obtained from the Development Services Department.
11. Residential re-roof with only one existing layer and no roof decking repair.
12. Window and door replacement in-kind window replacement where no alteration of structural members, window U-value meets prescriptive requirements of the energy code, safety glazing is provided where required, fall protection is provided where required, and egress requirements are maintained.
Repairs and maintenance: A permit shall not be required for minor repair work, including the replacement of lamps or the connection of approved portable electrical equipment to approved permanently installed receptacles.
1. Portable heating, cooking or clothes drying appliances.
2. Replacement of any minor part that does not alter approval of equipment or make such equipment unsafe.
3. Portable-fuel-cell appliances that are not connected to a fixed piping system and are not interconnected to a power grid.
1. Portable heating appliances.
2. Portable ventilation appliances.
3. Portable cooling units.
4. Steam, hot or chilled water piping within any heating or cooling equipment regulated by this code.
5. Replacement of any minor part that does not alter approval of equipment or make such equipment unsafe.
6. Portable evaporative coolers.
7. Self-contained refrigeration systems containing 10 pounds (4.54 kg) or less of refrigerant or that are actuated by motors of 1 horsepower (746 W) or less.
8. Portable-fuel-cell appliances that are not connected to a fixed piping system and are not interconnected to a power grid.
9. The stopping of leaks in drains, water, soil, waste or vent pipe; provided, however, that if any concealed trap, drainpipe, water, soil, waste or vent pipe becomes defective and it becomes necessary to remove and replace the same with new material, such work shall be considered as new work and a permit shall be obtained and inspection made as provided in this code.
10. The clearing of stoppages or the repairing of leaks in pipes, valves or fixtures, and the removal and reinstallation of water closets, provided such repairs do not involve or require the replacement or rearrangement of valves, pipes or fixtures.
- How do I find out what my property is zoned?
Please find your property on our Zoning web map. Please note that Skagit County Assessor information does not include your City of Mount Vernon zoning district. Also feel free to email our Permit Technicians at: PermitTech@mountvernonwa.gov, or call staff at the Development Services Department and they can assist you, (360) 336-6214.
- How do I know if my property is located in the floodplain?
Many properties in the City are located in the 100-year floodplain. You can look up your property on FEMA’s Map Service Center, https://msc.fema.gov/portal/search, or you can contact us and we can provide both the flood zone and what that means.