If you have equity in your home, a cash-out refinance or home equity loan/line of credit (HELOC) might work for you. Financing is typically unavailable for homeowners with lower income and insufficient home equity. The California Housing Finance Agency (CalHFA) ADU Program provides a grant of up to $40,000 to qualified homeowners for the reimbursement of ADU pre-development costs, including but not limited to impact fees. To qualify, a homeowner must be low or moderate income. Make sure to check if funds are available and if you qualify.