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ADU Lenders

These local banks offer loan products for homeowners who want to build ADUs. The loan restrictions and conditions vary considerably among lending institutions. Please consider your needs carefully before taking a loan.

Cape Cod 5


Cape Cod 5 offers a home equity loan and a mortgage program to support the creation of ADUs to help meet the needs of homeowners, while also addressing the demand for diverse local housing options. For additional information, go to or call (888) 225-4636.

The Cooperative Bank of Cape Cod


The Cooperative Bank of Cape Cod has introduced a loan program designed to provide homeowners capital to create ADUs. The Coop offers Home Equity Lines & Loans and Mortgage Refinance options. The Coop has implemented flexible qualifying guidelines to allow the use of projected annual rental income towards your income. Credit, income and asset verification will be required. Homeowners must also provide evidence of Town issued Permit and copy of Builder plans and specs (Stick or Modular Builds allowed). For additional information, go to or call (508) 568-3400.

First Citizens’ Federal Credit Union


First Citizens’ ADU Loan offers many financing options for different ADU scenarios, including purchasing a new home or refinancing an existing home and building an ADU, or using existing home equity to build an ADU. For additional information, please contact Patrick Neenan at or by calling (774) 628-7859.

Seamen’s Bank 


The Lower Cape Housing & ADU Resource Center and Seamen’s Bank have collaborated to create a loan program specifically designed to provide capital for creating new ADUs to homeowners. These loans are available for primary and secondary homes, including multi-family homes with up to four existing units. For additional information:


Home Modification Loan Program

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The Home Modification Loan Program (HMLP) is a Massachusetts state-funded loan program. HMLP provides 0% interest deferred payment loans to homeowners and landlords so they can modify or adapt their homes for a person(s), of any age, with a professionally documented limitation(s) or disability. This includes ADU projects that would allow for a family member(s) or a caregiver to live with the homeowner. To learn more visit or call 1-866-500-5599.   

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