East Hampton New York Has 131 ADU Permits Left
We’re breaking down the 131 remaining permits, why availability in your school district matters, the Town’s $100,000 financing opportunity, and what it all could mean for your property, and if it’s worth it.
Applications for the 2026 Construction Assistance Program close August 21, 2026.
The real question is whether the financing, rental requirements, and long-term use of the ADU make sense together for what you want to accomplish with your property.
The 131 Remaining Permits Don't Tell the Whole Story.
East Hampton allows just 200 ADU permits town wide, with no more than 40 permits in each of its five school districts. As of June 2026, 131 permits remained. At first glance, that may sound like plenty of availability, but the town wide number isn’t necessarily the one homeowners should be watching.
Permit availability varies significantly by school district. East Hampton had just 9 permits remaining and Springs had 15, while Montauk had 31 and both Amagansett and Wainscott had 38. Because permits are issued on a first-come, first-served basis within each district, two homeowners considering similar ADUs could be facing very different levels of availability simply based on where their properties are located.
Read the Fine Print: The $100,000 Loan Comes With Requirements
East Hampton’s new Construction Assistance Program can provide eligible homeowners with up to $100,000 in interest-free, deferred-payment financing, with repayment generally deferred until the property is sold. That is a meaningful benefit, particularly when construction costs can be one of the biggest barriers to creating an ADU.
But there are two important details homeowners shouldn’t overlook.
The loan program is separate from the ADU permit process, and the 2026 pilot is expected to fund only up to 10 projects. Unlike ADU permits, which are issued first-come, first-served within each school district, applications for the financing program are entered into a public lottery that determines the order in which eligible applications are reviewed.
The financing isn’t simply $100,000 in unrestricted construction money. It comes with an affordable-housing commitment, including requirements around year-round occupancy, tenant eligibility, and allowable rents.
The real question is whether the financing, rental requirements, and long-term use of the ADU make sense together for what you want to accomplish with your property.
The Rent Cap Changes the Financial Equation
The financing program is designed to create year-round affordable housing, so participating ADUs cannot simply be rented at whatever the market will bear. East Hampton sets maximum rents based on 130% of HUD Fair Market Rent, with current monthly limits of approximately $2,500 for a studio, $3,000 for a one-bedroom, and $3,500 for a two-bedroom.
A homeowner considering the $100,000 loan should evaluate the permitted rent under the program alongside expected construction costs, operating expenses, and how long they intend to own the property. In some cases, the value of interest-free financing may outweigh the rental restrictions; in others, building without the assistance program may make more financial sense.
Ask yourself, “What could it rent for under the program, what will it cost me to build, and does that combination make sense for my goals?”
A Qualifying Property Isn’t Necessarily a Feasible ADU
Even if your property has the required 15,000 square feet of lot area, factors like setbacks, existing structures, sanitary requirements, utilities, and lot configuration can determine what type of ADU is actually feasible.
Two neighboring lots of similar size can have very different options, and an attached ADU may make more sense on one property while a detached unit works better on another.
What We’d Look at First
If we were evaluating an East Hampton property today, we’d start with a few key questions:
How many permits remain in your school district?
Does the property meet the Town’s requirements?
What type of ADU can realistically fit?
What might it cost to build?
And do the permitted rents and available financing make sense for your goals?
That’s exactly why we created the ADU Advisory. If you’re considering an ADU, reach out and let us help you get a clearer picture of your property’s potential before deciding what comes next.
Get your free Score: score.aduadvisory.com
The information provided is for general informational purposes only and should not be considered legal, financial, tax, architectural, engineering, lending, or other professional advice. ADU regulations, zoning requirements, financing programs, and eligibility criteria are subject to change and vary by property. Readers should consult qualified professionals before making decisions regarding the development, financing, permitting, or construction of an ADU.