Sometimes it is easier to have your partner move into your existing home. Sometimes it is better to start off in a new, neutral space where you can establish your boundaries and routines from scratch. Most importantly you need to have your name on the lease (if the property is rented), or the mortgage (if purchased) and on any utility accounts.
This will give you a sense of joint purpose as a couple but will also serve you well in the event of a break up. If you do not have your name on the lease or utility accounts and your relationship ends your ex partner is within his/her rights to simply change the locks on the property and call the police if you attempt to enter. This article sets out ways you can rent property with your partner transparently.