By Steven Hyde, Founder, Hyde Funding · NMLS #391380. Reviewed December 4, 2026. Hyde Funding is a mortgage lender headquartered in San Diego, lending nationwide since 2015.
Short answer: Often, yes. A home with an accessory dwelling unit (ADU) can often qualify for a HECM. The appraiser decides how many units the property has, and HECMs are available on 1- to 4-unit homes as long as you live in one of the units. Reverse mortgage money can also help pay to build a permitted ADU for a caregiver or family member, as long as the home stays your primary residence.
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California has eased its ADU rules, and many San Diego homeowners have added granny flats, garage conversions and backyard cottages. For an older homeowner, an ADU can house a caregiver or an adult child, or bring in rent. ADUs and reverse mortgages can work well together, but the details matter.
The FHA appraiser classifies the property, looking at separate kitchens, entrances and addresses. HUD’s handbook says the appraiser makes the final call on the unit count (HUD Handbook 4235.1). HECMs can be used on 1- to 4-unit properties when you live in one unit. Unpermitted units can cause problems, so have your permits ready.
A HECM line of credit or lump sum can help pay for an ADU. That can make sense when a family member or caregiver will live on site so you can age in place. The work must be permitted, the home must stay your primary residence, and adding a unit may raise your property taxes and insurance.
Rent from an ADU may help in the financial assessment if it’s documented. Unlike reverse mortgage proceeds, rental income is taxable (IRS), and it may count as income for means-tested benefits.
A family member living in the ADU has no right to stay once the loan becomes due unless they are a co-borrower or an eligible non-borrowing spouse. Plan this with your estate attorney (heirs guide).
We see many ADUs in Encinitas, Chula Vista, El Cajon and throughout San Diego.
Whatever your question, these basics apply. A Home Equity Conversion Mortgage (HECM) is the FHA-insured reverse mortgage most homeowners use. The youngest borrower must be at least 62, the home must be your primary residence, and you need enough equity. Any existing mortgage is paid off at closing. Counseling with an independent HUD-approved counselor is required before you apply (HUD counselor search). The lender then reviews your income, credit and history of paying property charges.
No monthly mortgage payment is required. Interest and mortgage insurance are added to the loan balance, so it grows over time and your equity shrinks. You keep title, and you must keep paying property taxes, homeowners insurance and HOA dues and maintain the home. The loan is repaid when the last borrower, or an eligible non-borrowing spouse, sells, moves out permanently or passes away. A HECM is non-recourse: neither you nor your heirs will ever owe more than the home is worth when it is sold (CFPB). For higher-value homes, a proprietary jumbo reverse mortgage may be an option, but it isn’t FHA-insured and its terms differ. See how reverse mortgages work for a full walkthrough.
Bring this list to your HUD counseling session and to your call with Steven at (858) 775-1005.
Hyde Funding is a San Diego mortgage lender founded in 2015, with an office at 8996 Miramar Rd. Suite 250. Steven Hyde (NMLS #391380) will walk you through how your ADU fits a reverse mortgage in plain English and compare HECM and proprietary reverse options. Your family or advisor is welcome on the call. Every HECM borrower first completes independent HUD-approved counseling (find a counselor on HUD.gov). Start with a free reverse mortgage consultation, read the reverse mortgage hub, or see reverse mortgages in San Diego.
Often, yes, if the property meets FHA rules and the units are permitted.
Yes. Reverse mortgage money can pay for permitted improvements, including an ADU.
Yes. HECMs can be used on 1- to 4-unit properties as long as you live in one unit.
Yes. Rental income is generally taxable, while reverse mortgage proceeds are not.
Talk to Steven: (858) 775-1005 · Free consultation · Apply now
Steven Hyde, NMLS #391380 (NMLS Consumer Access). Equal Housing Opportunity. Reverse mortgage borrowers must live in the home as their primary residence, keep paying property taxes, homeowners insurance and HOA dues, and maintain the home, or the loan may become due. The loan balance grows over time. HECMs are insured by FHA. Hyde Funding is not affiliated with HUD, FHA or any government agency. This is general information, not a commitment to lend. Consult a financial or tax advisor.