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§ 02
When a permit is required
Permit triggers and exempt work for Newcastle
A building permit is required for most construction within the City of Newcastle.
One-story detached accessory structures under 200 sq ft
Decks under 30 inches above grade
Fences under 6 feet in height
Retaining walls under 4 feet
- Exempt One-story detached accessory structures under 200 sq ft
- Exempt Decks under 30 inches above grade
- Exempt Fences under 6 feet in height
- Exempt Retaining walls under 4 feet
Note: Verify exemptions with Community Development before proceeding.
Required documents
- Completed permit application
- Site plan
- Construction plans (PDF format)
- Project specifications
- Building code
- 2021 Washington State Building Code
- Permit validity
- Varies by permit type.
- Contractor requirements
- Contractors must hold a valid Washington State L&I registration.
§ 03
Application process
Typical processing: Varies by permit type.
- 01 Access MyBuildingPermit.com
- 02 Create account
- 03 Select Newcastle as jurisdiction
- 04 Complete online application forms
- 05 Upload PDF plans and documents
- 06 Pay fees online
- 07 City staff reviews application
- 08 Receive electronic permit upon approval
Typical processing time: Varies by permit type.
§ 04
Required inspections
Scheduling and sequence
§ 05
Frequently asked
Common questions about Newcastle permits
01 Do I need a building permit in Newcastle, WA? ▸
A building permit is required for most construction within the City of Newcastle.
02 How do I apply for a building permit in Newcastle, WA? ▸
To apply for a building permit in Newcastle, WA, follow these steps: 1. Access MyBuildingPermit.com 2. Create account 3. Select Newcastle as jurisdiction 4. Complete online application forms 5. Upload PDF plans and documents 6. Pay fees online 7. City staff reviews application 8. Receive electronic permit upon approval
03 How long does it take to get a building permit in Newcastle, WA? ▸
Building permit processing times in Newcastle, WA typically run Varies by permit type.. Timelines can vary based on project complexity and current department workload.
04 What work is exempt from building permits in Newcastle, WA? ▸
Not all construction work requires a permit in Newcastle, WA. The following work is generally exempt: One-story detached accessory structures under 200 sq ft; Decks under 30 inches above grade; Fences under 6 feet in height; Retaining walls under 4 feet. Note: Verify exemptions with Community Development before proceeding. When in doubt, confirm with the local building department before starting work.
05 How do I schedule a building inspection in Newcastle, WA? ▸
Once your permit is issued and work reaches an inspection milestone, you can schedule a building inspection in Newcastle, WA via: MyBuildingPermit.com.
last verified April 2026
source Community Development - Building ↗
entry id permits/washington/king/newcastle
Educational reference. Permit rules and fees change — confirm current requirements directly with Community Development - Building before applying. Jaspector is not legal advice.