A permit is the part of a mini split job you never see, until a final inspection, a home sale or an insurance claim asks for it. At Firlands Portland Mini Splits we pull the permits, include the city’s fees in the price and close every job with its final inspection. Here’s what’s involved.
What Portland requires
A new mini split in the City of Portland needs two permits from Portland Permitting & Development: mechanical and electrical.
| Permit | What it covers | When it’s needed |
|---|---|---|
| Mechanical | The heat pump: outdoor unit, heads, line set and drains | Every new or replacement mini split, unless a minor label is used |
| Electrical | The new 240-volt circuit and the disconnect (electrical requirements) | Whenever a new circuit is run |
| Final mechanical inspection | Closes the mechanical permit | Every mechanical permit |
The mechanical application lists the contractor’s CCB number and a site plan showing where the outdoor unit goes. Applications are made online through the City’s DevHub, and a permit expires if 180 days pass between inspections.
What the permits cost
For a typical single-zone install in Portland, the city’s fees come to about $382, and we include them in our price.
| Fee item, one- and two-family homes | Amount |
|---|---|
| Mechanical permit: minimum fee (covers a heat pump) | $167 |
| Electrical permit: first new branch circuit | $174 |
| Each additional circuit | $21 |
| Oregon state surcharge, on both | 12% |
| Typical single-zone total (both permits) | about $382 |
| Mechanical only, reusing the existing circuit | about $187 |
A multi-zone system with several heads can run higher, depending on how the heads and the outdoor unit are itemized. Our cost guide shows where the permits sit inside a full price.
Minor labels: the shortcut for many jobs
A minor label is a lower-cost stand-in for a mechanical permit, bought in advance and stuck on the job, with random inspections instead of one on every job.
What it can cover
Portland’s minor mechanical label program covers both the replacement of mini split heat pumps and new mini split heat pumps in one- and two-family homes. It doesn’t cover new construction.
The rules
- Only contractors with a verifiable CCB registration can buy and use them; a homeowner doing their own work takes out a full permit.
- One label per project, used only inside Portland Permitting & Development’s area.
- The City inspects a random share of labeled jobs, and a failed one needs a full permit.
- The label covers the mechanical side only. A new circuit still needs its electrical permit.
A straight replacement that reuses its circuit is where labels help most.
Where the outdoor unit can go
Portland’s zoning code limits where outdoor equipment sits, and the permit’s site plan is where that gets checked.
- Not in the required front setback. Heat pumps can’t sit in the front yard setback.
- Side or rear setback, up to five feet high. In most residential zones a unit can sit in a side or rear setback if it’s no more than five feet tall.
- Noise. Portland’s noise code sets 55 dBA at the property line between homes in the day and 50 dBA from 10 p.m. to 7 a.m.
- Historic districts. In districts such as Irvington and Ladd’s Addition, ground units no larger than five feet each way, not closer to the street than the house’s street-facing wall, are exempt from historic resource review. So are pipes and line sets kept off the street-facing facade.
Mini split placement covers how we pick the spot.
Doing the work yourself
Portland lets the recorded owner of a house pull a permit and do their own mechanical work. A house owned by an LLC doesn’t qualify.
The catch with refrigerant
Federal rules require EPA Section 608 certification to handle refrigerant. A homeowner can mount heads and run lines, but charging, recovering or opening the refrigerant circuit is certified work. Pre-charged DIY kits get around that, at the cost of fixed line lengths.
Inspections still apply
An owner’s permit gets the same inspections, and the City expects the work to meet the Oregon mechanical and residential codes. If you hire anyone for part of the job, their CCB number goes on the application.
Outside Portland: who issues permits
Each city and county in the metro runs its own permits, and in parts of Clackamas County the mechanical and electrical permits come from different offices.
| Where the house is | Mechanical permit | Electrical permit |
|---|---|---|
| Gresham | City of Gresham | City of Gresham |
| Milwaukie | City of Milwaukie | City of Milwaukie |
| Lake Oswego | City of Lake Oswego | City of Lake Oswego |
| Oregon City, West Linn, Happy Valley | The city | Clackamas County |
| Gladstone, unincorporated Clackamas County | Clackamas County | Clackamas County |
| Vancouver, WA | City of Vancouver | City of Vancouver |
| Unincorporated Clark County, WA | Clark County | Washington L&I |
On the west side, Hillsboro issues its own mechanical permits, and Washington County handles unincorporated areas such as Aloha, Bethany and Cedar Mill. We confirm the office for each address before we apply.
Two traps
- Mailing addresses. A Milwaukie mailing address doesn’t always mean the house is inside Milwaukie city limits. We confirm the jurisdiction from the county map.
- Washington fees differ. Vancouver’s minimum mechanical and electrical fees are $78.99 each, with no Oregon-style surcharge. See mini splits in Vancouver and in Gresham.
Condos and apartment buildings
A mini split in a condo or apartment building can need commercial review, and an association’s approval usually comes first.
Portland lets ductless mini splits in existing low-rise multifamily buildings skip commercial plan review when the job meets the City’s criteria. Your association’s rules on outdoor units and wall penetrations still apply. Condo mini splits covers the approvals.
What we do
On every job we pull the permits, put the city’s fees in the price, and book the final inspection.
- We confirm who issues permits for your address.
- We include the site plan for the outdoor unit and check the setback.
- We schedule the inspections and meet the inspector.
- You get the closed permit with your test readings.
If you’re replacing baseboards, the permit paperwork also supports your Energy Trust application.