I don't show a home on 6440 Old Oaken in our tax records....I remember one at 9617 Oaken Bucket that was on the market in Sacramento. Could you have the name wrong, or possibly mispelled?
I searched under just 6440, and under Oaken and nothing comes up. I'm not sure there's such a street for us to consider...unless I'm just not typing it right. If you have an area that you're interested in, we can even check tax records for homes that might be in distress and worth approaching to see if they'd be interested in selling under a short sale. Working with a realtor can provide you all kinds of inside information, rather than just relying on seeing a sign in the yard.