Meridian, ID
Meridian Plumbing Permit Cost
Meridian plumbing permits price $30.00 per living unit with $8.00 per fixture and $8.00 per backflow device
plus flat rows for specific work — water conditioner $30, fixture replacement $30, lawn sprinkler $30, mobile-home connection $40, sewer line $38, and a sewer/water combination $50. Large projects switch to a project-value ladder from 3% + $30 to ½% + $3,230.
How this fee is calculated
These are the components the schedule defines for this permit, as they applied on 2026-09-28. A component only applies to your project if its conditions match — read that column before assuming a figure. Want a figure for your own project? Estimate this fee with the permit fee calculator.
| Component | Formula | Applies when | Range |
|---|---|---|---|
| Backflow devices ($8.00 each)Permit fee | $8.00 per backflow device | backflow devices at least 1 | — |
| Residential sewer / water combo fee, one inspection ($50.00)Permit fee | $50.00 flat fee | sewer water combo is true | — |
| Water conditioner ($30.00, plus $8.00 per additional unit)Permit fee | $30.00 flat fee | water conditioner is true | — |
| Fixture replacement permit ($30.00)Permit fee | $30.00 flat fee | fixture replacement is true | — |
| Plumbing fixtures ($8.00 each)Permit fee | $8.00 per fixture | Fixtures at least 1 | — |
| Lawn sprinkler permit ($30.00)Permit fee | $30.00 flat fee | lawn sprinkler is true | — |
| Mobile home connect or reconnect of water or sewer to existing stub outs ($40.00)Permit fee | $40.00 flat fee | mobile home connection is true | — |
| Plumbing re-inspection ($45.00)Inspection fee | $45.00 per inspection | reinspections at least 1 | — |
| Residential sewer line or replacement ($38.00)Permit fee | $38.00 flat fee | sewer line only is true | — |
| Plumbing permit per living unit ($30.00 each)Permit fee | $30.00 per dwelling unit | Dwelling units at least 1 | — |
| Plumbing project value $20,000-$100,000 ($630.00 + 2% over $20,000)Permit fee | 2% of project valuation above the first $20,000 | plumbing by value is true and Project valuation over $20,000 and Project valuation up to $100,000 | — |
| Plumbing project value $100,000-$200,000 ($2,230.00 + 1% over $100,000)Permit fee | 1% of project valuation above the first $100,000 | plumbing by value is true and Project valuation over $100,000 and Project valuation up to $200,000 | — |
| Plumbing project value $200,000 and up ($3,230.00 + ½% over $200,000)Permit fee | 0.5% of project valuation above the first $200,000 | plumbing by value is true and Project valuation over $200,000 | — |
| Plumbing project value to $20,000 (3% of job value and $30.00)Permit fee | 3% of project valuation | plumbing by value is true and Project valuation is provided and Project valuation up to $20,000 | — |
A real permit fee is these components added together. The department’s final calculation is the one that applies — this is the schedule it will be based on.
A worked example
Follow the arithmetic by hand. Every line is produced by the engine from the rules above, so the total cannot drift away from the schedule behind it.
Worked example
A Meridian landlord permits a two-unit duplex plumbing rough-in with five fixtures per unit and one backflow device.
| Input | Value |
|---|---|
| Dwelling units | 2 |
| Fixtures | 10 |
| Occupancy class | Residential |
| Type of work | New construction |
| Number of backflow devices | 1 |
Example total
$148.00
An estimate, not an official fee. It is calculated from the published fee schedule as it applied on 2026-09-28. The permit office’s own calculation is the one that applies, and your project may fall under rules this schedule does not describe.
Fee schedule as of 2026-09-28Rules applied 3Rules considered 14
| Component | How it is calculated | Amount |
|---|---|---|
Backflow devices ($8.00 each)Permit feeBuilding Plumbing Fees, sec. 1.4, Permit fee (each living unit): backflow device $8.00.Show the working
| $8.00 per backflow device | $8.00 |
Plumbing fixtures ($8.00 each)Permit feeBuilding Plumbing Fees, sec. 1.4, Permit fee (each living unit): per fixture $8.00; replacement per fixture $8.00.Show the working
| $8.00 per fixture | $80.00 |
Plumbing permit per living unit ($30.00 each)Permit feeBuilding Plumbing Fees, sec. 1.4, Permit fee (each living unit): each single family dwelling, or living unit in an apartment, condominium, townhouse or other multiple unit — $30.00.Show the working
| $30.00 per dwelling unit | $60.00 |
| Total | $148.00 |
Fees that do not apply here
Listed so you can see what was considered and left out, rather than wondering whether something is missing. A rule can also be left out because it is not published for this permit at all, and that is stated where it matters.
- Residential sewer / water combo fee, one inspection ($50.00) — This fee does not apply to the inputs provided.
- Water conditioner ($30.00, plus $8.00 per additional unit) — This fee does not apply to the inputs provided.
- Fixture replacement permit ($30.00) — This fee does not apply to the inputs provided.
- Lawn sprinkler permit ($30.00) — This fee does not apply to the inputs provided.
- Mobile home connect or reconnect of water or sewer to existing stub outs ($40.00) — This fee does not apply to the inputs provided.
- Residential sewer line or replacement ($38.00) — This fee does not apply to the inputs provided.
- Plumbing project value $20,000-$100,000 ($630.00 + 2% over $20,000) — This fee does not apply to the inputs provided.
- Plumbing project value $100,000-$200,000 ($2,230.00 + 1% over $100,000) — This fee does not apply to the inputs provided.
- Plumbing project value $200,000 and up ($3,230.00 + ½% over $200,000) — This fee does not apply to the inputs provided.
- Plumbing project value to $20,000 (3% of job value and $30.00) — This fee does not apply to the inputs provided.
- Plumbing re-inspection ($45.00) — This fee does not apply to the inputs provided.
Assumptions
- Calculated from 3 fee rules in effect on 2026-09-28.
- Amounts are rounded to the nearest cent, once, at the end of each component.
Living units: 2 × $30.00 = $60.00. Fixtures: 10 × $8.00 = $80.00. Backflow device: 1 × $8.00 = $8.00. Total: $148.00.
What is different in Meridian
Plumbing permits issue under Building Plumbing Fees sec. 1.4 (Res. 18-2110). Each single-family dwelling or living unit in a multi-unit building pays $30; fixtures and their replacements price $8 each, and backflow devices $8. The project-valuation table covers commercial-scale work in four steps (3% of job value and $30 to $20,000; 2% over $20,000 plus $630; 1% over $100,000 plus $2,230; ½% over $200,000 plus $3,230). Re-inspections are $45 and unpermitted work doubles the fee.
What this figure does not include
Impact fees, utility connections and other departments’ permits are the usual omissions, and in some jurisdictions they are larger than the permit fee itself.
Not included in these figures
This estimate covers the plumbing permit only. It excludes:
- Water and sewer district connection and capacity fees.
- Irrigation main-line work beyond the lawn sprinkler permit.
- Building, electrical and mechanical permits for the same project.
- Re-inspections ($45) and after-hours charges.
- Impact fees collected with the building permit.
Common questions
How much is a plumbing permit per living unit in Meridian?
$30.00 for each single-family dwelling or living unit in an apartment, condominium, townhouse or other multiple unit.
City of Meridian City Fees Schedule, Building Plumbing (Res. 18-2110)
How are plumbing fixtures charged in Meridian?
$8.00 per fixture and $8.00 per fixture replacement. Backflow devices are $8.00 each as well.
City of Meridian City Fees Schedule, Permit fee (each living unit)
What do sewer and water service permits cost in Meridian?
A residential sewer line or replacement is $38.00; the residential sewer/water combination (one inspection) is $50.00; a mobile home connect or reconnect to existing stub outs is $40.00.
City of Meridian City Fees Schedule, Permit fee rows
How is large-project plumbing priced in Meridian?
By the Project Valuation Table: 3% of job value and $30 up to $20,000; $630 plus 2% of job value over $20,000 through $100,000; $2,230 plus 1% over $100,000 through $200,000; and $3,230 plus ½% of job value over $200,000.
City of Meridian City Fees Schedule, Project Valuation Table
How much is a lawn sprinkler permit in Meridian?
$30.00 flat for the lawn sprinkler permit; water conditioners are $30.00 with an $8.00 additional per-unit fee.
City of Meridian City Fees Schedule, Permit fee rows
What does a fixture replacement permit cost?
$30.00 for the fixture replacement permit (individual fixture replacements otherwise price $8.00 each under the per-fixture row).
City of Meridian City Fees Schedule, Fixture replacement permit fee
What are Meridian's plumbing inspection fees?
Re-inspections $45.00. Work commencing without a permit is charged double permit fees as the minimum.
City of Meridian City Fees Schedule, Other Plumbing fees
Does Meridian require a separate permit for a water heater swap?
A single water heater prices $8.00 as a fixture replacement under the per-fixture row, or the $30.00 fixture-replacement permit covers the swap as its own permit — the calculator charges the row that matches how the work is filed.
City of Meridian City Fees Schedule, Permit fee rows
Source and verification
The documents behind every figure on this page, with the dates that make them checkable.
- City websiteCityPrimary source
The city's official fee database; each row carries its adopting resolution number. Building Structural (1.1), Electrical (1.2), Mechanical (1.3) and Plumbing (1.4) rows read in full from the portal. Retrieval required a browser session (the portal serves a Cloudflare challenge to plain HTTP agents).
Verification
Last verified against the official source in Sep 2026.