Tier 2 Genera l Dependent visa

HI

i have been working as a tier 2 general migrant for last two months, now i am planning to apply visa for my wife and daughter as dependent.
In my application form there was a question about the place you will be staying in UK upon arrival. And I did mention the company address since my company sponsored me. My wife and daughter will also be sponsored by the company , so in the form what address should I use, do I have to rent a house and provide the rental agreement
Or I can rent it after my wife and daughter get the visa
Could Someone help me in this
Regards