Home equity and renovation financing have different draw, appraisal and repayment structures. Compare those features and their costs before relying on a loan to fund an ADU.
There's no single "best" ADU loan — the right one depends on how much equity you have, how you want to draw the money, and whether you need to protect a low first-mortgage rate.
Loan amounts and eligibility depend on the lender, property, appraisal and borrower qualifications. CT ADU provides educational planning resources; confirm actual loan terms and eligibility with a licensed lender. You can also review renovation lines of credit as you plan.
A defined budget: compare home equity loans, often with fixed rates. Staged spending: compare HELOCs, often with variable rates. Limited equity today: ask whether an after-renovation-value program fits.
A HELOC offers revolving draws and usually has a variable rate, so payments can change. A home equity loan provides a lump sum and usually has a fixed rate. Compare the actual rate structure, fees, draw rules and repayment obligations with the timing of project costs.
Some renovation financing may consider as-completed value. Program availability, appraisal requirements and loan limits must be confirmed; this is not a promise of additional borrowing capacity.
We can introduce you to vetted third-party lenders that finance ADUs: local banks, credit unions and private lenders, including some that consider after-renovation value. Read our financing guide. CT ADU isn't a lender and isn't paid by lenders. Introductions are optional.
Loan amounts and eligibility depend on the lender, property, appraisal and borrower qualifications. CT ADU provides educational planning resources; confirm actual loan terms and eligibility with a licensed lender.
It's tempting to chase the lowest advertised rate, but structure often matters more. An interest-only draw period or a longer term can lower today's payment while costing more over the life of the loan; a variable rate can start low and climb. Weigh the total cost and the payment structure against how long you'll hold the loan — not just the headline number. Our ADU ROI guide shows how the financing payment flows into your real return.
CT ADU starts with a preliminary review of your property and goals. Our guides explain financing approaches and our calculators let you explore assumptions before discussing loan eligibility and terms with a licensed lender.
Tell CT ADU about your property and goals. We can help identify site and design questions and explain the planning resources available for your next steps.
This guide is general information, not a loan offer or financial advice. CT ADU is not a lender or mortgage broker. Loan availability, rates, terms, loan-to-value limits, appraisal treatment and underwriting vary by program, property and borrower. Confirm all details with a licensed lender before applying.
Common questions about HELOCs, home equity loans and renovation financing.
Neither is universally better. A HELOC offers revolving draws and usually has a variable rate; a home equity loan provides a lump sum and usually has a fixed rate. Compare actual costs, repayment obligations and the timing of project expenses before deciding.
A HELOC offers revolving draws, usually at a variable rate. A home equity loan provides a lump sum, usually at a fixed rate. When structured as second liens, they can leave an existing first mortgage in place. Both use the home as collateral; terms and eligibility vary.
Some renovation programs may finance eligible ADU work and consider as-completed value. Ask the lender to confirm the property and project requirements, appraisal basis, lien position and available terms. CT ADU's guides do not establish eligibility or program availability.
A second mortgage, such as a HELOC or home equity loan, may be an option if you qualify. Maximum loan-to-value limits vary by lender, property and borrower. Ask each lender for its limit rather than assuming a higher one is available.
A cash-out refinance replaces the existing mortgage. Compare the new rate, fees, repayment term and total interest with adding separate financing; a single payment or a lower existing rate does not by itself determine the better option.
Often, if you qualify. When structured as second liens, HELOCs, home equity loans and renovation second mortgages sit behind your existing first mortgage, leaving its rate and terms in place. Compare options for financing an ADU without refinancing.
Sources and further reading: CFPB: HELOCs; CFPB: home equity loans. Confirm current requirements with the relevant program or qualified adviser.
