a DM for a online game im joining soon, permits any race up to RP 17. I've asked him if Templates are allowed but he hasn't responded to that question yet, however I got to wondering how does Templates factor into Racial Points.
Like if using his rules for race how many RP would a Half Dragon Drow be? A standard drow is RP 14.
As a general rule, Template only applies to monster not players and are meant to increase the CR of the creature, not it's RP.
To quote the Relevant section
A template is a set of rules that you apply to a monster to transform it into a different monster. All templates give precise directions on how to change a monster’s statistics to transform it into the new monster.
To try to figure out the RP, you'd have to see every thing gained/lost, compare it and the see the net gain/lost.either way a half-dragon would definitely bring it over the RP17 cap just with the stat increase, let alone the natural armor, attacks and movement improvement.
Edit: A quick look at the increase gained by the template against the Character creation guide, the half-dragon template is about 85RP in and by itself.