Riverrose - if the primary residence you bought in 2009 is your first house then yes you can claim TRS on that house.
If you previously owned a house and sold that one to purchase your current house, you can still claim TRS on your current residence BUT only if you are still within the 7 years of buying your previous house. That is if you purchased your first house in lets say 2006, you'll have 7 years to claim TRS from the date of purchase. That will continue to your next house once the previous one is sold and claiming TRS will run to 2013 (based on 7 years from the purchase of your very first house if it is 2006)
If you are a first time buyer for your house in 2009, then you can claim TRS for 7 years until 2016. You cannot claim TRS on secondary homes as in your case.
Your brother can as he is a first time buyer