The cars were moved the day after the complaint was made, but the woman was concerned parents were not teaching their children how to be safe on the road.
"It's not the school's fault ... The fact it happened in the first place makes me wonder whether the parents know their children are behaving like this."
Kea St resident Shelley Jetson said she had been dealing with inconsiderate student parking since she moved there three years ago.
"It's been a problem since day one. On any given day during the school term there will be about 20 cars taking up both sides of the road.
"It turns the street into a one-way road and being a blind corner, I've had a few near misses. It's pretty dangerous."
Ms Jetson said many would park as close to her driveway as possible.
"I have a lowered car so I need to turn in and out on an angle. Sometimes I come close to hitting their cars because they are pressed up so close to my driveway.
"It's just a never-ending nightmare. I've left notes on some of the cars but each year there's a new batch of students and the problem starts all over again."
In a written statement Western Heights High School said student carparking was an issue it was concerned about but was not in a position to resolve.
"We do not have a student carpark. We have more than 120 staff and the old student carpark is now a staff carpark."
The school received several complaints each year about student carparking, the statement read.
"Our expectation is that our students will obey traffic regulations and be good neighbours and we are disappointed when this is not the case. We asked staff to pass this message on to students through house group time."
But it is not just Western Heights residents who have dealt with students clogging up their streets.
Kasey Eleanor lives on Corlett St near John Paul College and says she constantly has problems with both students and parents blocking her driveway.
"Just the other day I had a big van parked right across my driveway, I had to squeeze around it and go out my neighbour's driveway; I shouldn't have to do that.
"It's a daily thing, even though there are signs all down the street, both parents and students continue to park wherever they want.
"The street is narrow so when there's cars parked on both sides it becomes a one-lane road."
John Paul College principal Patrick Walsh said they had received "only a few" complaints about student parking but were sensitive to residents' concerns.
"We do have a student carpark but we live in an age when most Year 12 and 13 students have their own cars. The carpark holds between 60 and 70 cars and that is filled quickly in the morning.
"Other students park in the street, which is very narrow and can disrupt the residents in the area. When we do receive a complaint we talk to the students about the importance of being considerate and trying to park down one side of the road."
The three other high schools in Rotorua said they did not have problems with students parking in residential areas.