Building permit cost: how to estimate fees for your project.
Learn how to estimate building permit costs from local fee schedules, separate review and trade fees, and avoid mistaking a rough estimate for a city quote.
A building permit’s cost depends on the jurisdiction, work type, and applicable fee schedule. The building fee may be only one part of the total: plan review, trade permits, and other project-specific charges can be separate.
Build a fee worksheet
| Line item | What to record |
|---|---|
| Building permit | Scope, calculation basis, and schedule date. |
| Plan or land-use review | Whether the charge is separate or included. |
| Trade permits | Each applicable trade and its fee basis. |
| Other agency charges | The responsible office and project trigger. |
| Professional services | Separate service quote; not a government permit fee. |
Start with the project and the issuing authority
Write down the address, type of work, building use, and proposed scope before looking for a price. Identify the agency that issues the permit. A familiar mailing city is not always enough to establish which department administers the property.
The useful estimate is a list of applicable charges under that authority’s current schedule. A national average cannot tell you which fees your application will trigger, and a neighboring city’s number may use a different calculation method.
What can change the fee
Seattle’s permitting guidance offers fee-estimation resources and distinguishes categories of permits. It also explains that details about the proposed work matter to the estimate. Use the applicable local basis rather than assuming the contractor’s quote is always the exact value used by the authority.
If a schedule uses valuation, area, hours, fixtures, or another unit, record both the input and its definition. Ask the agency how to handle uncertain scope. An apparently precise total built from the wrong basis is still an unreliable estimate.
Separate the parts of the total
Portland publishes different fee schedules for building and trade permits and notes that one residential addition can draw charges from building, site-development, plumbing, and electrical tables. This is a useful example of why one line called “permit fee” may miss part of the budget.
Our suggested estimate lists each permit or review, the schedule and effective date, the calculation input, the estimated amount, and whether it is already included in another quote. Keep agency charges separate from architect, engineer, contractor, and expediter service fees.
Source: Portland: Current building and trade fee schedules ↗
An illustrative budget, not a quoted fee
Suppose a planning worksheet contains an assumed $300 building fee, $200 plan-review fee, and $150 of trade-permit fees. The arithmetic total is $650. These invented figures illustrate the worksheet only; they are not prices from Seattle, Portland, or another agency.
If a later review identifies an additional permit, add it as a separate line and update the total. If a contractor’s proposal already includes one charge, reconcile it before adding the same cost again. Keep the official assessment or invoice when it becomes available.
Ask when charges are assessed
Confirm which amounts are due at application, review, issuance, or a later project stage. Ask whether revisions, additional review, or extra inspections can affect the amount. Do not assume that every fee is collected once or refunded if the project changes.
The applicable fee schedule and agency instructions control. When you receive an estimate, preserve what scope it assumes and whether any other departments may assess charges. This helps distinguish a scope change from an apparent billing discrepancy.
How to keep an estimate useful
Version the worksheet when scope or schedules change. Save the source link, effective date, assumptions, and contact who clarified an ambiguous item. Before committing a project budget, request the authority’s current calculation or guidance for the actual proposal.
For construction-data research, a permit fee is not the same as project valuation, contract price, or a contractor’s revenue. Keep each field’s source meaning intact instead of using one number as a substitute for another.
A practical review checklist
- Confirm the issuing jurisdiction and project scope.
- Use the current official schedules or estimator.
- Record the basis and date for every calculation.
- Separate agency charges from service-provider fees.
- Resolve exclusions, revisions, and payment timing with the agency.
Sources & further reading
The primary sources below support the definitions and jurisdiction-specific examples. Checklists, illustrative examples, and research workflows are ObservedWork’s editorial guidance. Sources reviewed September 8, 2026.
Keep exploring
- Use the free contractor verification worksheet →
- Do I need a permit? How to check before starting a project.
- What is a permit expediter? Services, scope, and hiring questions.
- What is a final inspection? Closing out a construction permit.
- What building permit data can—and can’t—tell you.
- Our coverage approach