If you are in fact registered in the blue Tibbian Baan in Bangkok, then you come under the same rules as a Thai person, who can only be registered once (ie: in only one Tibbian Baan). As the Blue Tibbian Baan is for the persons household registration only, then you cannot be registered at 2 addresses.
The important thing is your name on the Condo Chanoot. The Tibbian Baan really isn't that important, as it does not pertain to any ownership rights, only address registration.
(PS..some foreigners who own a Condo (and DO NOT have PR) can usually obtain a Yellow Book if they so choose.
Hope this helps.