Last December, Richardson committed to the Bruins, where his father, Paul Sr., played in college.
But in the spring, Richardson opened up his recruitment, and was going to take visits, which he already had to Arizona State and had one planned with Cal.
The tug of his family's school, though, was too great, and Richardson recommitted to the Bruins on Wednesday.
"After going up there this weekend, it just felt like UCLA was the place for me to be," said Richardson. "I just talked to Coach (Rick) Neuheisel and Coach (Norm) Chow and they were both excited. Coach Chow told me to get ready to go to work and Coach Neuheisel said he was happy that I committed again."
A week ago, Shaquille Richardson, Paul's cousin, committed to the Bruins, and he said then he would focus his attention on Paul to get him back in the fold.
A short time later, Paul was on the commitment list.
"I was just talking to my cousin, Shaq, and he said that I'd be able to play in front of my brother and my family, and that's what sealed it for me. My family means everything to me."
It's been a busy week for Richardson, who was at UCLA's practice on Sunday with Shaq, two days after winning the CIF-SS Northwest Division title with Serra. This Saturday, Serra will go for the CIF State D-III title against Marin Catholic. Last weekend he got a good up-close view of his future teammate, Malcolm Jones.
"We had an exciting game against Oaks, but we've got one more game. Our coach told us to celebrate then come back on Monday and be ready," said Richardson. "I had known that when Malcolm committed, he was a good player, but that was my first time really seeing him and he's really good."
The four-star receiver has been leaning heavily towards the Bruins even since he decommitted, but wanted to take some time through the process, having committed too early for his liking.
"I just wanted to make sure that I knew where I wanted to go. I didn't want to be unsure about it, or have any regrets so that's why I decommitted," said Richardson. "Oregon and Miami had been coming on strong and I was talking to Arizona State a lot after I visited and I wanted to get up to Colorado too. But UCLA was home for me."
And in the end, he chose to continue in his father's footsteps with UCLA.
"My dad is really happy," said Richardson. "We went up there on Sunday for practice, and I'm planning on being up there on Friday for practice too. I just felt on Sunday that it was time to commit to UCLA. I'm down and solid now."
After Serra goes for the CIF State title, Richardson and his cousin will both head down to Myrtle Beach where they will be playing in the Offense-Defense All-American Game.
"It's going to be fun in South Carolina," said Richardson. "Fun and cold. But I'm hoping to be back to 100% from my ankle, so if I am, I'm planning to put on a show."