Plus One ADU Grant in the Hudson Valley: Who Qualifies and What You Agree To
By Spenser McCoy
Short answer: Plus One is a New York State housing program that pays for accessory dwelling units (ADUs) through local administrators. In the Hudson Valley, Hudson River Housing runs it in Dutchess County and RUPCO runs it in Ulster, Orange, and Columbia counties. Awards run up to $125,000, but they go to income-eligible owner-occupants and come with a 10-year set of conditions. Read those conditions before you read the dollar amount.
This guide summarizes the program as published by the administrators. Terms, funding, and participating towns change, so confirm each point with the administrator for your county before you act.
What is the Plus One ADU program?
Plus One is a state-funded program through New York State Homes and Community Renewal (HCR). The state does not hand out the money directly. It funds local organizations, and those organizations take applications from homeowners.
The grant pays for building or renovating one ADU on the property of an eligible owner-occupant. That can be a detached backyard unit, a basement or attached apartment, or a garage conversion.
Who runs it where?
County | Administrator | Published maximum |
Dutchess | Hudson River Housing (HRH) | Up to $125,000, including 10% for program delivery |
Ulster | RUPCO | Up to $112,500 on the county's ADU guide |
Orange, Columbia | RUPCO | Up to $125,000 per recent regional news coverage |
You will see both $112,500 and $125,000 in public materials. HRH's fact sheet gives $125,000 as the maximum, including 10% for program delivery, while its scoring section cites a $112,500 grant cap. That pattern suggests the construction portion is $112,500, but ask the administrator to confirm how the number is applied to your project.
Only participating municipalities qualify. Your county being served does not mean your town is in. Ask the administrator whether your municipality is participating.
Who qualifies?
Based on HRH's published fact sheet for Dutchess County, applicants generally need to meet all of these:
Household income at or below 120% of Dutchess County Area Median Income, adjusted for household size
Demonstrated need, meaning you cannot afford the ADU without the grant
The property is your owner-occupied primary residence
No other rental units on the property
No outstanding zoning violations and no delinquent taxes
An ADU that your Town allows by right, by special use permit, or through site plan review
There is no asset limit, but assets are counted toward income. HRH's fact sheet says they are counted at the greater of 6.1% or actual earnings.
RUPCO describes its applicants as income-eligible owner-occupants. Its public pages do not state the income limits, so ask RUPCO directly.
The honest implication: if your household income is above the program's limit, you will not qualify, and no amount of good design changes that. It is better to find out first.
What do you agree to in exchange?
This is the part that decides whether the grant is right for your family. Based on the published terms:
A 10-year compliance period. You must live on the property for the term.
A lien. HRH's fact sheet says the grant is recorded as a lien that decreases 10% per year. Selling or falling out of compliance during the term may mean prorated repayment.
No short-term rentals. Short-term, seasonal, and vacation rentals are prohibited. Both HRH and RUPCO say so.
Affordable rent, if you rent the unit. RUPCO's published terms say recipients agree to rent the unit affordably for at least ten years. HRH's fact sheet makes renting to a tenant at or below 80% of HUD's Dutchess County AMI a voluntary commitment that earns extra scoring points. Each tenant must sign an income attestation.
Payment goes to contractors, not to you. Funds pay licensed contractors directly. They cannot reimburse work already done or pay for your own labor.
Process requirements. HRH requires at least two contractor estimates and full-replacement homeowner's insurance. You cover any cost above the award.
If the ADU is for a parent, check how family occupancy fits the rent and compliance terms with the administrator. We do not assume it is straightforward.
What the grant does not do
It does not replace zoning, health department, or building permit approval. Your Town still decides whether and how an ADU is allowed, and if you are on septic, the county health department weighs in on capacity. A grant award does not override either.
It does not cover everything. If the build costs more than the award, you pay the difference.
It is first come, first served. HRH lists no application dates and says applications are accepted first come, first served. RUPCO's page says the same. Funding can run out, so confirm what is open before you plan around it.
You cannot occupy or rent the unit before the Certificate of Occupancy. Ulster County's guide warns that doing so can create liability and put insurance claims at risk.
A sequence that protects you
Confirm your household income against the administrator's current limits.
Ask whether your town is a participating municipality.
Confirm your Town allows an ADU on your lot, and check septic or sewer.
Get at least two contractor estimates.
Apply, and wait for approval before committing to construction.
Steps 2 and 3 are why many projects stall. A grant for a project the lot cannot support helps nobody.
How OneBuild fits
Our Feasibility Study (credited toward your package if you move forward) answers step 3 in writing: what your Town allows, what your site can take, and where an engineer or agency needs to weigh in. Our fees are flat, defined by scope, and agreed in writing before work begins. We take no commission from manufacturers or contractors, and we do not mark up construction or pass-through costs. You contract directly with the builder and the manufacturer.
We coordinate. We do not administer the grant, and we cannot promise an award. What we can do is help you find out early whether your property and your plan can work.
Frequently asked questions
How much is the Plus One ADU grant? Published materials say up to $125,000 in Dutchess and in recent RUPCO coverage, and up to $112,500 on Ulster County's guide. HRH's fact sheet includes 10% for program delivery within its $125,000 figure. Confirm the figure with your administrator.
Who qualifies for the Plus One ADU grant in the Hudson Valley? Income-eligible owner-occupants in participating municipalities. In Dutchess County, household income must be at or below 120% of area median income.
Can I use Plus One to build an ADU for my parent? Possibly, but ask the administrator how occupancy, rent, and the 10-year terms apply. Do not assume family use is exempt.
Can I rent the ADU on Airbnb if I take the grant? No. Both administrators prohibit short-term rentals during the compliance period.
Do I have to pay the grant back? Not if you stay in compliance for the full term. HRH describes a lien that decreases 10% per year, with prorated repayment if you sell or fall out of compliance.
Does the grant pay me directly? No. It pays licensed contractors directly and cannot reimburse completed work.
Is there a deadline? Neither administrator publishes one. Both describe first-come, first-served applications. Confirm whether funds are currently available.
Before you call
Gather your household income documentation, your most recent survey or plot plan, and any septic records. Then book a free Discovery Call. We will tell you what we can confirm about your property and what we cannot, and whether a feasibility study makes sense.
One Team. One Process. OneBuild.
Comments