New Haven, CT
New Haven plumbing permit fees
A plumbing permit in New Haven is priced from the Building Department's cost-of-construction tables:
$50.26 + $27.26 per $1,000 on 1&2-family residential work, $55.26 + $35.26 per $1,000 on 3+ family and commercial. The Plumbing & Heating Minimum Acceptable Cost sheet (revised September 6, 2024) fixes what common plumbing jobs count as.
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 |
|---|---|---|---|
| Plumbing permit, commercial ($55.26 + $35.26 per additional $1,000)Permit fee | $55.26 + $35.26 per $1,000 of project valuation above $1,000, or fraction thereof | Occupancy is not residential | — |
| Plumbing permit, residential ($50.26 + $27.26 per additional $1,000)Permit fee | $50.26 + $27.26 per $1,000 of project valuation above $1,000, or fraction thereof | Occupancy is residential | — |
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 full bathroom remodel with new fixtures in New Haven, permitted as plumbing work on its own.
| Input | Value |
|---|---|
| Project valuation | $5,000 |
| Occupancy class | Residential |
Example total
$159.30
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 1Rules considered 2
| Component | How it is calculated | Amount |
|---|---|---|
Plumbing permit, residential ($50.26 + $27.26 per additional $1,000)Permit feePlumbing permits are named on the same fee-schedule line as building permits; on 1&2-family work they read the residential table. The City's Plumbing & Heating Minimum Acceptable Costs sheet (revision date 09/06/2024) fixes the estimate floors: full bath $5,000, water heater $1,100, per fixture $800, new house $9,500.Show the working
| $50.26 + $27.26 per $1,000 of project valuation above $1,000, or fraction thereof, in $1,000 steps | $159.30 |
| Total | $159.30 |
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.
- Plumbing permit, commercial ($55.26 + $35.26 per additional $1,000) — This fee does not apply to the inputs provided.
Assumptions
- Calculated from 1 fee rule in effect on 2026-09-28.
- Amounts are rounded to the nearest cent, once, at the end of each component.
The Minimum Acceptable Cost sheet prices a complete full bath at $5,000 of work — the estimate floor.
At the residential table: $50.26 + 4 x $27.26 = $50.26 + $109.04 = $159.30 — the printed row at $5,000.
A water heater replacement alone counts as $1,100 of work ($80.12), and each additional fixture beyond the bath counts at $800.
What is different in New Haven
Plumbing sits on the same fee-schedule line as building in New Haven — the applications page prices Building, Sign, Electrical, Plumbing and HVAC permits from the same two tables — so the fee arithmetic is the citywide one: $50.26 for the first $1,000 plus $27.26 per additional thousand residential ($55.26 / $35.26 commercial), state education rider included.
The plumbing side's Minimum Acceptable Cost sheet is what turns a fixture list into a cost estimate: a full bathroom counts as $5,000 of work ($136.30 at the residential table), a water heater $1,100 ($80.12), each additional fixture $800 ($72.06), a new house with one and a half baths in Pex $9,500 ($259.10), a kitchen sink with new drainage $1,500 ($91.16). The sheet was revised September 6, 2024 and prints a disputes route — contractors who contest these floors take them to the Plumbing/Mechanical Inspector.
Heating rides the same sheet: a boiler replacement counts as $5,500, a full hot-water system $8,500, a hot-air furnace with ductwork $6,000 — each pricing from the same tables. The $30.00 Certificate of Approval closes out stand-alone trade permits after inspection.
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 is the Building Department's plumbing permit pricing from the cost tables. It excludes:
- The building permit for the project the plumbing belongs to, priced separately on the building page here.
- The Minimum Acceptable Cost sheet itself — estimate floors, not additional charges.
- The $30.00 Certificate of Approval for stand-alone trade permits.
- Sewer and water connection charges, which are utility bills rather than Building Department fees.
- Plan review — the schedules publish no plan-review percentage.
Common questions
How much is a plumbing permit in New Haven?
It follows the citywide cost tables: $50.26 + $27.26 per $1,000 residential, $55.26 + $35.26 per $1,000 commercial — $159.30 at $5,000 of work on a house.
What does a water heater replacement cost to permit?
The minimum-cost sheet counts it as $1,100 of work, which prices $80.12 at the residential table.
Is there a per-fixture plumbing charge?
Not directly — the minimum-cost sheet counts each fixture as $800 of work ($72.06 at the residential table per fixture), and the fee comes from the cost tables.
What does a full bathroom count as?
$5,000 of plumbing work per the Minimum Acceptable Cost sheet — $136.30 at the residential table.
Does heating work ride the plumbing permit?
Yes — the sheet is Plumbing & Heating: a boiler replacement counts as $5,500, a full hot-water system $8,500, a hot-air furnace with ductwork $6,000.
What if my plumber's actual quote is lower than the sheet?
The sheet is the Building Department's floor on the estimate the fee is read from; contractors who dispute the floors take them to the Plumbing/Mechanical Inspector at 203-946-8038.
When was the plumbing sheet last revised?
The Plumbing & Heating Minimum Acceptable Costs sheet prints a revision date of September 6, 2024.
Why does the fee end in 26 cents?
Connecticut's $0.26-per-$1,000 state code-education surcharge, already inside the printed totals.
Do I need a Certificate of Approval?
Stand-alone trade permits carry the $30.00 Certificate of Approval after inspection; trade work covered by a correlating building permit does not pay it again.
How do I apply?
Through the Building Department's applications page, which links the fee schedules and both minimum-cost sheets.
Source and verification
The documents behind every figure on this page, with the dates that make them checkable.
- Fee schedule (PDF)CityPrimary source
Read 2026-09-26 (the live host serves HTTP 403 to scripts; the page and both PDFs were read and downloaded through a real browser session). Residential table: $50.26 at $1,000 rising exactly $27.26 per additional $1,000 to $4,384.60 at $160,000. Commercial table: $55.26 at $1,000 rising exactly $35.26 per additional $1,000 to $5,309.00 at $150,000. The page's own line prices 'Building, Sign, Electrical, Plumbing, HVAC Permit Fees' from these schedules. The .26 endings carry Connecticut's $0.26-per-$1,000 code-education surcharge, included in the printed totals.
Verification
Last verified against the official source in Sep 2026.