Solar Permit in Bellevue, Washington
It depends
Sometimes, depending on the project
Before installing any residential solar photovoltaic system in Bellevue
Issued byCity of Bellevue Development Services
By Mario Bailey, verified against official sources
Quick answer
An electrical permit is required for all residential solar photovoltaic systems in Bellevue. A building permit is not required for rooftop single-family systems where the dead load does not exceed 3.5 pounds per square foot and panels are no more than 18 inches above the roof surface. Ground-mounted or commercial systems require a building permit. Submit electrical permit applications through MyBuildingPermit.com.
Typical threshold: electrical permit required for all solar systems; building permit not required for rooftop single-family systems with dead load under 3.5 lbs per sq ft and panels no more than 18 inches above roof surface.
Who is pulling this permit?
Apply yourself
Hire it out
Before you sign, ask the contractor:
- Who pulls the permit, you or me, and is the permit fee included in the bid?
- Which inspections will this job need, and who meets the inspector on site?
- Is your contractor license active in this locality, and under which business name?
When a permit is usually needed
Before installing any residential solar photovoltaic system in Bellevue
What a solar permit costs in Bellevue
How Bellevue compares in Washington
Across the Washington jurisdictions we have verified, the same threshold runs from 3.5 to 4, so a project that is exempt here may still need a permit one county over.
| Jurisdiction | Permit needed? | Threshold |
|---|---|---|
| Bellevuethis page | It depends | electrical permit required for all solar systems; building permit not required for rooftop single-family systems with dead load under 3.5 lbs per sq ft and panels no more than 18 inches above roof surface |
| Clark County | Permit required | Separate SOL permits are required for ground mounted units or panels mounted on existing buildings; in new construction the solar panels are included in the NHC or ADS permit. |
| King County | It depends | roof-mounted solar PV panels weighing less than 4 pounds per square foot on residences do not require a building permit; heavier installations require a permit |
| Pierce County | Permit required | Not specified |
| Seattle | Permit required | Not specified |
| Snohomish County | It depends | ground-mounted residential solar PV systems never need a building or mechanical permit; roof-mounted residential PV on a detached single-family house is exempt from a building/mechanical permit only if total dead load is 3.5 lbs per sq ft or less (up to 4.5 lbs per sq ft for frameless panels on a 3:12 or steeper slope, or 5 lbs per sq ft for frameless panels on a 5:12 or steeper slope), panels are mounted 18 inches or less above the roof surface, and an electrical permit has already been issued; a separate electrical permit through WA L&I is always required regardless |
| Tacoma | Permit required | Not specified |
How to apply in Bellevue
In Bellevue, a rooftop solar PV permit application is a combined structural and electrical plan set: a site plan and roof framing details proving the array's mounting can carry its added loads, plus a one line electrical diagram covering listed modules and inverters, disconnects, and the rapid shutdown design. Utility interconnection is a separate approval that runs in parallel with the permit.
What most solar permit applications include:
- Both a building permit and a separate electrical permit are required, since the array must be designed and installed to the residential code's solar provisions and to the National Electrical Code (IRC R324.3).
- For Bellevue, the plan set identifies listed equipment: PV modules listed to UL 1703 (or both UL 61730-1 and UL 61730-2), and inverters listed to UL 1741, with grid-tied inverters listed for utility interaction (IRC R324.3.1).
- Structural drawings show that the roof framing is designed to structurally support the array and withstand the gravity loads it adds (IRC R324.4.1).
- For Bellevue, the site plan lays out roof access pathways at least 36 inches wide, plus a ridge setback sized to how much of the roof the array covers, so firefighters retain pathways and ventilation access (IRC R324.6.1, IRC R324.6.2).
- For Bellevue, the one line electrical diagram shows the rapid shutdown method and the location of its single initiation device, since one control point must bring all system conductors down to safe levels (NEC 690.12, NEC 690.56(C)).
- Interconnecting the array to the utility grid at a defined point of connection is a separate application process from the local building or electrical permit and must be approved before the system can operate (NEC 705.12).
- Some permitting offices route applications through SolarAPP+, an automated review platform that checks the plan set against code requirements and issues eligible permits instantly (DOE SolarAPP+).
General submittal guidance from IRC 2021 R324 (Solar Energy Systems) and NEC 2020 Article 690 (Solar Photovoltaic Systems) and Article 705 (Interconnected Power Production Sources). Source. City of Bellevue Development Services sets the exact checklist for Bellevue.
Where to apply in Bellevue:
City of Bellevue Development Services
- 450 110th Ave NE, Bellevue, WA 98004
- Phone: (425) 452-4121
- Email: MEPreview@bellevuewa.gov
Solar Permit in Bellevue compared with nearby Washington localities
| Locality | Permit needed? | Threshold | What each Washington schedule says | Verified |
|---|---|---|---|---|
| Bellevue | It depends | electrical permit required for all solar systems; building permit not required for rooftop single-family systems with dead load under 3.5 lbs per sq ft and panels no more than 18 inches above roof surface | Solar panel installations are electrical permits with fee by valuation per Table 6 of... | |
| Clark County | Permit required | Separate SOL permits are required for ground mounted units or panels mounted on existing buildings; in new construction the solar panels are included in the NHC or ADS permit. | Fees for separate SOL permits are based on construction value | |
| King County | It depends | roof-mounted solar PV panels weighing less than 4 pounds per square foot on residences do not require a building permit; heavier installations require a permit | Most permit fees increased approximately 14% on January 1 2026 plus a $126 application... | |
| Pierce County | Permit required | Not specified | Residential rooftop solar panel building permit base fee $173.00, plus $201.00 for... | |
| Seattle | Permit required | Not specified | Solar PV is permitted through the electrical permit: systems below 12kW are a flat $438... |
Inspections and closing out your permit
In Bellevue, inspectors verify the installed array against the approved plans, and some agencies run a rough check of roof attachments and penetrations while they are still exposed before the wiring and roofing close them in. The final inspection confirms rapid shutdown, disconnects, grounding, and required labels are installed correctly, and the system cannot be energized until the utility separately approves interconnection.
- In Bellevue: where an agency runs a rough or pre-inspection, it checks the array's roof penetrations while they are still exposed, confirming they are flashed and sealed (IRC R324.4.3).
- In Bellevue: the inspector confirms whether rapid shutdown is required, how it is accomplished, and that it is properly identified (NEC 690.12, NEC 690.56(C)).
- In Bellevue: pV disconnecting means must be permanently marked and installed where they are readily accessible, which the inspector confirms in the field (NEC 690.13).
- In Bellevue: bonding and grounding of the array, including every exposed non current carrying metal part and the grounding electrode system, is checked before sign off (NEC 690.43, NEC 690.47).
- In Bellevue: at the service equipment, the inspector looks for the required rapid shutdown placard, a labeled diagram showing the initiation device's location in the specified colors and letter sizes (NEC 690.56(C)).
- In Bellevue: utility interconnection is inspected and approved separately from the local building department's sign off, and the system cannot be energized until both approvals are in hand (NEC 705.12).
Schedule each inspection in advance and pass the final before you use the work or close the permit. Request inspections through the Bellevue permit portal or by phone at (425) 452-4121.
Inspection sequence from NEC 2020 Article 690 (690.12 rapid shutdown, 690.13 disconnects, 690.43/690.47 grounding, 690.56 labeling) and IRC 2021 R324.4.3 (roof penetrations). Source. An open permit left un-inspected can surface later in a title search or home sale.
Your Solar Permit checklist for Bellevue
- Confirm the requirement. Sometimes, depending on the project. Typical threshold: electrical permit required for all solar systems; building permit not required for rooftop single-family systems with dead load under 3.5 lbs per sq ft and panels no more than 18 inches above roof surface. Usually needed: Before installing any residential solar photovoltaic system in Bellevue.
- Budget the fee. Solar panel installations are electrical permits with fee by valuation per Table 6 of Ordinance 6879, $79 inspection fee minimum for valuation up to $500 plus a 10% plan review fee with a $35 minimum when plan review applies, effective 2026-01-01. Official fee schedule.
- Apply. In Bellevue, a rooftop solar PV permit application is a combined structural and electrical plan set: a site plan and roof framing details proving the array's mounting can carry its added loads, plus a one line electrical diagram covering listed modules and inverters, disconnects, and the rapid shutdown design. Utility interconnection is a separate approval that runs in parallel with the permit. Start at the Bellevue permit portal.
- Keep the office details handy. City of Bellevue Development Services. Phone: (425) 452-4121. Address: 450 110th Ave NE, Bellevue, WA 98004.
- Plan for inspections. In Bellevue, inspectors verify the installed array against the approved plans, and some agencies run a rough check of roof attachments and penetrations while they are still exposed before the wiring and roofing close them in. The final inspection confirms rapid shutdown, disconnects, grounding, and required labels are installed correctly, and the system cannot be energized until the utility separately approves interconnection.
Compiled from the official sources on this page. Last checked .
Permitting activity in Bellevue
In 2024, Bellevue authorized permits for 589 new residential housing units (254 single-family, 335 in multi-family buildings), valued at $274M, down from 802 the year before. That works out to about 4 permits per 1,000 residents.
Source: U.S. Census Bureau, Building Permits Survey, 2024 annual data · population 148,073.
About Bellevue
Bellevue has about 65,536 housing units. The median home is valued at $1,203,100, against a median household income of $161,300. About 52% of homes are owner-occupied, and the typical home was built around 1981.
Source: U.S. Census Bureau, American Community Survey 2023 5-year.
Frequently asked questions
- Do you need a solar permit in Bellevue?
- An electrical permit is required for all residential solar photovoltaic systems in Bellevue. A building permit is not required for rooftop single-family systems where the dead load does not exceed 3.5 pounds per square foot and panels are no more than 18 inches above the roof surface. Ground-mounted or commercial systems require a building permit. Submit electrical permit applications through MyBuildingPermit.com. Electrical permit required for all solar systems; building permit not required for rooftop single-family systems with dead load under 3.5 lbs per sq ft and panels no more than 18 inches above roof surface. Always confirm with the office before starting.
- How much does a solar permit cost in Bellevue?
- Solar panel installations are electrical permits with fee by valuation per Table 6 of Ordinance 6879, $79 inspection fee minimum for valuation up to $500 plus a 10% plan review fee with a $35 minimum when plan review applies, effective 2026-01-01. See the official fee schedule for current amounts.
- Where do you apply for a solar permit in Bellevue?
- You can apply through the Bellevue permit portal or contact the City of Bellevue Development Services directly. The links are listed on this page.
- Can a homeowner pull a solar permit themselves in Bellevue?
- Under Washington law (RCW 18.27.090(11), (12); RCW 19.28.261(1); RCW 18.106.150(1)): Washington lets homeowners do their own construction work, including the licensed trades, on property they own. RCW 18.27.090(12) exempts any person working on his or her own property from contractor registration, but the exemption does not apply if you do contractor type work for the purpose of selling, demolishing, or leasing the property, and the separate owner exemption in RCW 18.27.090(11) is lost if you sell or lease improved property owned less than 12 months. For electrical work, RCW 19.28.261 lets you wire your own residence, farm, or place of business without an electrician license, unless the work is on construction of a new building intended for rent, sale, or lease, or on property offered for sale within 12 months after you obtained it. RCW 18.106.150(1) gives the same kind of exemption for plumbing work at your own residence, farm, or place of business. These exemptions waive the license, not the permit: an owner doing electrical work still buys an L&I electrical work permit and passes inspection (WAC 296-46B-901), and building and plumbing permits still come from your local building department. Confirm how Bellevue applies this before you apply.
From the Library
What else needs a permit in Bellevue
Every other permit type we have verified for this jurisdiction, with the rule that applies here.
| Project | Permit needed? | Threshold | Typical fee |
|---|---|---|---|
| Deck Permit | It depends | decks where the highest walking surface is 30 inches or less above grade do not require a permit; decks over 30 inches above grade require a permit with plan review | Building permit fee by valuation per Table 4 of Ordinance 6879, $44 inspection fee... |
| Electrical Permit | Permit required | Not specified | Electrical permit fee by valuation per Table 6 of Ordinance 6879, $79 inspection fee... |
| Fence Permit | It depends | fences over 8 feet in height require a building permit; fences 8 feet or under do not require a permit | No separate fence line item |
| HVAC Permit | Permit required | Not specified | Flat single-family mechanical inspection fees per Table 8 of Ordinance 6879: furnace up... |
| Patio Permit | No permit needed | Not specified | No separate patio line item |
| Plumbing Permit | It depends | permit required for new plumbing, concealed piping, and fixture additions; replacing a sink toilet or faucet not concealed in a wall does not require a permit | Plumbing permit fee per Table 11 of Ordinance 6879, $50 for the first fixture plus... |
| Pool Permit | It depends | swimming pools over 24 inches deep require a permit with plan review; above-ground pools 24 inches or less may be exempt | Pool equipment electrical inspection fee of $94 without plan review per Table 7 of... |
| Roof Replacement Permit | It depends | permit required when modifying or replacing the roof sheathing or making structural changes; simple shingle replacement may not require a permit | Flat Re-roof Permit inspection fee of $290 due at issuance per Table 5 of Ordinance... |
| Shed Permit | It depends | detached storage sheds playhouses or gazebos with a floor area of 200 square feet or less do not require a building permit; structures over 200 square feet require a permit | No separate shed line item |
Solar Permit in other Washington localities
Everything above, sourced
Code references
National and state model-code sections the general guidance on this page is drawn from. They are not Bellevue documents; the office above sets the local rules.
How this solar permit page for Bellevue was verified. 2 official sources: bellevuewa.gov, bellevuewa.gov; fee schedule: official document. Last checked by Mario Bailey, not confirmed with City of Bellevue Development Services. Rules change; confirm before you build. How we verify.
Last checked: Report an error on this page
Compare Solar Permit requirements across Washington localities
Washington rule changes