I did the work myself which you might think might not be relevant but it's worth mentioning so that it can levelset the baseline materials cost. I repurposed the 240V breaker spot that used to be our electrical dryer and removed that and put in 6 AWG wire which - with the help from my wife - I pulled through the wall, ran through my basement crawl space and then ran across the roof of my garage into a NEMA 14-50. I did the work in late 2016 to be able to take the tax credit.
$25 electrical work permit from the city
$165 50ft Romex 6/3
$5 screw clamp connector (for the breaker box)
$10 2-pole 50A breaker
$2 - receptacle box
$11 NEMA 14-50 outlet
Total materials cost (rounded): $218
Total time to do the installation was about 3 hours but I'm not an electrician and so I took my time. But then the inspection was fast - he arrived on time, looked at the breaker box and the plug, I asked a couple of questions about how I left the electric dryer wiring (just in case), and he signed off on it.
I had a 14-30 outlet installed for $350 several years back when I had a Volt. It is situated next to my panel in the garage. When I got Quicksilver, I use the UMC that came with the car and swap out the 14-50 adapter for a 14-30 adapter (see below). Easy peasy. I was thinking of upgrading to a 14-50 outlet but not in a hurry since the 14-30 works just fine.
Paid 450. 350 for install, 100 permit. Other quotes ran upto $600. Was within a few feet of the panel. Using an electrician not in the union helped the cost a lot but oddly enough they were a lot more expensive when I went to 200A service and had a sub panel run. Used a unionized shop for that job.
So my take on permits is that every trustworthy electrician will tell you you need one. Some of them might say that if you insist - to save money - they will do what you want and skip the permit. But they should all say that it's necessary. To me anyone who says that a permit isn't needed is usually code for saying that they aren't licensed and/or insured (because to pull the permit they need their license number and proof of insurance), and to me electrical issues are the number one cause of house fires nowadays and the best protection that I have available to me against that I can have a city inspector check my work or my electrician's work. And then there's the currents involved - the more current involved, the more concern that there is over a potential fire and EV charging currents are high.
You want page 4 - for just electrical work. Permit fee is $25 and then the outlet is $0.50... but it's a high current outlet so maybe it will be under the pool/spa charge ($25). So then it will likely be between $25.50 and $50 to get the permit. If it were me, I would argue it should be $25.50.
This is exactly the reason why I want to get a permit. I used to live in Riverside, but I'm in a smaller city in IE (Wildomar) and every time I try to look at the City's page it doesn't load correctly or I just can't find the fee schedule.
Thank you so much for pulling the riverside one. At least it gives me an idea. I was thinking the permit was going to be like $300 just because.
Tesla Wall Charger requires 3 wires @6ga. (2 hot, 1 ground) - For a Model 3 - I think S/X requires larger gauge wire and higher circuit breaker?
Depending on the length of your run, the additional wire could add another $20-$100 in wire cost and upping conduit size (if your installation requires it). When I was getting quotes, a couple electricians recommended just getting the Tesla Wall Charger because the additional conduit and wire cost would be almost a wash.
That being said, a NEMA outlet has more flexibility if you were to change your options later down the line.
*Edit: Cause I'm not an electrician. Thanks for the info @garsh