Guides
Part of A Planning Order for Multifamily EV Charging
Multifamily EV charging installation steps after design
Multifamily EV charging installation steps after design: permit review, ordering, build, commissioning, pilot and who confirms each gate.
What to take away
- Treat the stretch from permit to pilot as one run of gates, each opening the next.
- Permit requirements vary by jurisdiction, so the drawings must match the code edition in force.
- Order switchgear and chargers only after the permit and utility answers are in.
- Commission against the approved design, then pilot before you open every port.
- Record serial numbers, firmware versions and warranty dates on the day of commissioning, not later.
Why the order of the late steps matters
Most delays trace back to work done out of sequence. Hardware bought before the panel was surveyed. Drawings finished before the utility was called. Ports opened before anyone tested a payment on a phone in a basement garage.
A 60-unit building ordered twelve chargers in March, then discovered in June that the feeder had no spare capacity. The equipment sat in a storage room for a season while the utility studied the service upgrade. The same project run in the right order looks like this:
Correct order for EV charger project
- Confirm budget authority and operator
- Survey spare capacity and routes
- Call utility about feeder and rates
- Decide access model, then design
- Ask building department before final drawings
- Build, inspect, commission to design
- Pilot ports with residents before opening
The sequence below picks up where the drawings begin. The earlier steps, from naming the owner to choosing the access model, sit in the planning order.
Take the drawings to the permit office
Submit drawings that show circuit routes, panel work, mounting positions, protection, accessible spaces and the route back to the building. Before the set is final, ask the building department which calculations and product certifications it wants.
Permitting and inspection procedures differ from one jurisdiction to the next. The federal guidance on permitting processes for charging infrastructure is a good primer on what is typically asked for. It is a primer, not a substitute for the answer from your own office.
Permit review for a commercial electrical permit typically runs two to six weeks, and each plan check cycle can add two weeks or more. A plan check comment is cheap; a redesign after award is not. Award is also roughly where a budget stops being reversible.
Build to the code edition your jurisdiction adopted
Electrical work must follow the code your jurisdiction adopted, not always the newest edition. Charging equipment counts as a continuous load, which changes circuit sizing, and the rules have shifted across editions.
In most U.S. jurisdictions the adopted code is an edition of the National Electrical Code (NFPA 70), and its Article 625 covers electric vehicle charging equipment. The building department tells you which edition applies. An installer following old habits can build something that fails inspection, so name the edition in the contract and in the permit.
Use a licensed contractor. The Department of Energy's Alternative Fuels Data Center says charging station installations must be completed by a licensed electrical contractor, in line with local and state codes. Ask for the permit number before work starts.
Order the gear last
Switchgear carries the longest procurement lead time. Typical quotes for new gear now run from about 20 to 50 weeks, and custom configurations run longer. Order only after the utility and permit answers are in, because a changed drawing can strand equipment already bought.
Utility work carries the longest lead times in the project and the least flexibility. A service study or upgrade commonly runs two to six months, and longer if a new transformer or service is needed. A design finalized without that conversation gets redrawn.
A short buying checklist helps at this point, and the installer checklist covers what a shared building should confirm before it signs a purchase order.
Run the late steps in order
- Submit the drawings for permit review and answer each plan check comment in writing.
- Confirm the code edition named in the permit, and build to that edition.
- Order switchgear and chargers once the permit and utility answers are settled.
- Install under the permit with a licensed contractor, and keep the inspection record.
- Commission the system against the approved design.
- Pilot with real residents for a week or two.
- Open the remaining ports and start measuring.
Each step needs the one before it. Skipping ahead is how a finished install ends up waiting on paperwork.
Know who confirms each gate
Every gate has one party that says yes. Write that party next to the gate before work starts, so nobody waits on a sign-off that was never requested.
| Gate | What opens it | Who confirms |
|---|---|---|
| Permit | Approved drawings and calculations | The local building department |
| Order | Utility and permit answers in hand | The owner or the person with budget authority |
| Inspection | Work built to the edition named in the permit | The local inspector |
| Commissioning | Every connector, credential and price rule tested | Your own commissioning check |
| Open to all | A clean pilot and a resident guide | The operator |
The inspector and the commissioning check answer different questions. One asks whether the work meets the code, the other whether the system does what you bought.
Commission against the approved design
Commissioning proves that what was built matches what was approved. Test every connector, credential, price rule, network connection, load-management response and support path, and take vendor answers from the bid into the test sheet so promises get checked.
While the installer is still on site, record:
- Charger serial numbers and model revisions
- Circuit identifiers and breaker locations
- Firmware versions as installed
- Warranty start dates and terms
- Network account details and who holds the admin credentials
- Contractor and vendor contacts for faults
That record is worth more in year three than anyone expects on the day.
Pilot with real residents
Open a few ports to actual residents for a week or two. A week of real sessions finds what drawings never will.
A pilot reveals signage nobody reads, cellular coverage dying below grade, a payment flow failing on one carrier, a cable that will not reach a car parked slightly off center, and an access aisle blocked by a charging vehicle.
Log each finding with its date, the port and the fix. Fix those, write a one-page guide for residents, then open the rest. An open finding becomes a support ticket on every port you add. A practical testing guide lists what to watch during the pilot.
Start measuring immediately
From day one, track uptime, sessions, energy delivered, failed starts, support tickets and repair times. Phase two should be argued from your own numbers rather than a vendor's projection.
Keep the metrics in one dated file beside the commissioning record. When a fault appears, the file shows whether it began at install, during the pilot or later, and the vendor cannot argue the starting point.
Common questions
How long does a multifamily installation take?
The construction is usually short. The waiting is not. Utility coordination, permit review and lead times on switchgear set the schedule, and any of them can run months.
Do we need a permit for a single charger?
Almost always, because it is electrical work. Small scopes are seldom exempt.
Can we install now and add load management later?
Sometimes, but it is much cheaper to design for it at the start. Retrofitting control onto circuits laid out without it often means new wiring.
Who signs off at the end?
Your local inspector for code compliance, and your own commissioning check for whether the system does what you bought. They are different questions and you need both.
What if the permit comes back with comments?
Answer each plan check comment in writing and resubmit. Each cycle can add two weeks or more, so ask the building department what it wants before the drawings are final rather than after.
Who should hold the commissioning record?
The owner or operator, filed with the project record. Warranty start dates, firmware versions and admin credentials are needed years later, long after the installer has left the site, so a copy held only by the contractor is not enough.
