Yes. This is called a “right of residence” or “right of occupation”. You can grant these rights in your will to anyone and can place conditions on those rights (for example, that they are required to maintain the property, pay certain expenses, etc.). You can also give expanded rights to someone, under a “life tenancy”. It is important to consider the implications of these rights on you, the intended occupant and the ultimate beneficiaries before considering including them in your will.