Details
Shelter Island residents – The Plus One ADU grant application is open – See if you qualify here!
Southampton Residents — The Plus One ADU grant application is open, with limited funding available — See if you qualify here. The Town of Southampton's CHF ADU Loan (0% Interest Rate Loan for 20 years) application is open — See if you qualify here.
East Hampton Residents — The Plus One ADU grant application is open, with limited funding available — See if you qualify here.
Babylon Residents – The Plus One ADU grant application is currently closed. Please check back here for updates. You may submit your interest form to join the Waitlist.
Accessory Dwelling Units (ADUs) are secondary housing units on a single-family residential lot. ADUs benefit homeowners, renters, and the community by creating more housing options while maintaining the character of single-family residential suburban and rural communities. For homeowners, a code-compliant ADU can provide an additional source of income, flexibility for multi-generational housing, and an increase in property value.
CDLI has been selected by New York State Homes and Community Renewal to administer the new Plus One ADU Program in the Town of Babylon, East Hampton, Shelter Island, and Southampton. The Plus One ADU Program provides a full-service program to support low- and middle-income single-family homeowner occupants who wish to:
Build a new accessory dwelling unit on their property OR
Improve an existing ADU that needs to be brought into compliance with code requirements.
Click here for Plus One ADU Program FAQs
Income Guidelines
Household Size | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
Household Maximum Annual Income | $138,495 | $158,280 | $178,065 | $197,850 | $213,678 | $229,506 | $245,334 | $261,162 |
Program Highlights
Up to $125,000 in grant funding including project management costs per ADU constructed.
Program support includes ADU design, permitting, and construction costs including oversight and closeout.
Household annual income must be at or below the current Nassau/Suffolk Area Median Income based on household size.[1]
Homeowners and renters must maintain year-round residency and keep the property in good condition and repair for 10 years or until the sale of the property[2]
Frequently Asked Questions
How much does an ADU cost?
That depends on what you would like to build! For example, converting an existing garage will be less expensive than building a new free-standing dwelling unit. Our project team can provide suggestions to bring down project costs. However, homeowners usually need to contribute funds above the Plus One ADU grant amount.
How much funding does Plus One ADU provide?
The Plus One ADU Program may provide up to $125,000 (which includes CDLI program support, such as design, permitting, construction oversight, closeout and ongoing compliance) in forgivable grant funds.
The total amount available for construction costs is up to $115,000. Applicants who do not use grant funds for pre-development costs (design, procuring an architect without CDLI putting out an RFP or getting the design, etc.) will have more funding available for construction up to a maximum of $115,000.
What if constructing my ADU costs more than the grant can provide?
Either (1) Reduce project scope to be within budget, or (2) Submit proof that you have or can borrow the necessary additional funds to complete the project.
Is the Plus One ADU Program a loan program? Do I have to pay the money back?
The Plus One ADU Program is a forgivable grant program. As long as you continue to meet program requirements, you will not have to pay the money back. Homeowners and ADU renters must maintain year-round residency and keep property in good condition and repair for 10 years or until sale of property. A deed covenant will be required to be filed with the County Clerk.
Who will manage my design?
Homeowners can choose their own design team or can work with an architect through CDLI. If homeowners pay for design costs directly, they can work with a designer of their choosing and they will have more grant funds available for construction costs. If CDLI procures a design team, the costs incurred will be drawn from that $115,000 in grant funds. In either case, Homeowners will work closely with the chosen firm to discuss designs. If a homeowner chooses to work with an architect through CDLI and then decides to cancel the project after design costs have been incurred they may be responsible for those costs.
Who will manage my construction?
CDLI will oversee all aspects of the construction process from contractor bidding & selection, compliance with MWBE/SDVOB utilization standards, general construction oversight & coordination between property owners and contractors, preparation of payment requests & other essential activities to ensure efficient construction.
I have a contractor in mind, can I work with them?
Yes, if they meet our requirements (licensing, insurance, etc.) and there is no conflict of interest. You will need to provide itemized work scope and cost estimate from your selected contractor as well as one additional written quote to confirm the cost is competitive.
How will funds be disbursed to contractors?
Plus One ADU grant funds can only be issued on a reimbursement basis. Advance payments to contractors are not permitted. Contractors may submit receipts for reimbursable items such as materials purchased, surveys etc.
Plus One ADU grant funds will be paid to contractors in progress payments at 50% completion and 100% completion. 10% of funds will be held until a Certificate of Occupancy has been issued.
Contractors may submit invoices for reimbursement of materials, permit fees and survey prior to 50% completion. If Plus One ADU grant funds are disbursed for these items, that amount will be deducted from the payment at 50% completion.
For construction projects which exceed the Plus One ADU grant amount, a payment schedule will be included in the contract to delineate the split between homeowner payments and Plus One ADU grant payments.
Requirements
What documents do I need to apply?
Babylon Residents click here
East Hampton Residents click here
Shelter Island Residents click here
Southampton Residents click here
Design Guidelines
Babylon Residents click here
East Hampton Residents click here
Shelter Island Residents click here
Southampton Residents click here
[1] Currently $197,850 for a household of 4.
[2] In the event of the sale of property or non-compliance, the amount of grant funds will be subject to repayment in accordance with a simple annual declining balance, based on the ten-year regulatory period.
Contact Info
Phone : (631) 364-5646
Email : PlusOneADU@cdcli.org
See If You Qualify
Our Team will contact you after reviewing your interest form!
Plus One ADU Program
Grants for homeowners in Babylon, East Hampton, Shelter Island, and Southampton for accessory dwelling unit construction.