Investors & landlords

Thanks for your help with this. Do you have any idea what my options are if the improvement is for a property that is partly my own residence and partly rented out? e.g., if I put in a new lawn that is shared between my household and a tenant. Can I allocate it between my personal use and the rental property (e.g., percentage based on square feet of the house rented out), then apply the de minimis deduction for the rental portion, and capitalize the personal-use portion?