No, 22433 Denker is not rent control. Check for yourself: go to http://zimas.lacity.org/, search for your property, and you'll see "Rent Stabilization" under under Planning and Zoning section.
Your question about rent increase due to late charges is situational/extraordinary in nature, and it is independent of whether the property is rent control. For this, review the penalties section of your apartment lease document.
Feel free to contact me at 310.445.4301 for any other questions.
Nov 2, 2016