Business Structure in AB: GST business registration number

[Matt Frey]

Hi Everybody,

Is it necessary for me to have a GST account number registered for a real estate business? From what I have read off of websites like taxtips.ca and  canadaone.ca, you only need to collect the taxes on goods and services sold once you have surpassed $30k. 

So If my strategy is to buy and hold, is this a necessary action to take, or should I wait before registering (in the event that I would sell a property?)