ADU · Greene County

Can you build an ADU in New Baltimore, NY?

Town of New Baltimore has 6 districts. All districts prohibit ADUs. Check your address to confirm the district that applies to your parcel:

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What the New Baltimore code says

The zoning code provides for no accessory dwelling unit in any district. Its use table carries no accessory apartment or two-family dwelling row, and § 112-12A limits each lot to one single- or two-family building.

Conditions the code attaches:

Under § 112-9B, any use absent from the use table is prohibited unless the chapter expressly provides for it elsewhere or a use variance is granted.
A two-family dwelling is defined in § 112-95 but appears in no district column of the use table, so an apartment carved into an existing house is prohibited townwide.
§ 112-12A independently bars a detached second unit, whether a cottage, a barn conversion or a unit over a garage.
§ 112-9C treats a district's own uses as accessory uses only where the combination meets all other provisions of the chapter, including the one-building-per-lot limit.
§ 112-17 on accessory structures applies to non-residential or non-agricultural uses and lots only, and does not authorize a residential accessory unit.
Confirm with the building department at (518) 756-6671 before counting on any accessory apartment, in case a more recent local law applies.

What the New Baltimore code indicates by district

The table below shows how each district treats ADUs, alongside the lot and setback standards that govern a second unit. District boundaries and conditions vary, so treat this as a starting point and confirm the district that applies to your parcel.

District	Min lot	Setbacks F / S / R	Max height	ADU
Rural Residential/Agricultural District	2 ac	60 / 25 / 25 ft	35 ft	No
Commercial District	2 ac	50 / 15 / 15 ft	35 ft	No
Industrial District	2 ac	50 / 15 / 15 ft	35 ft	No
Hamlet Residential District	2 ac	15 / 15 / 15 ft	35 ft	No
Developmental District	2 ac	80 / 50 / 20 ft	35 ft	No
Development/Multi-Family Residential District	2 ac	80 / 50 / 20 ft	35 ft	No

Rural Residential/Agricultural District - The 2 acre minimum is for a conventional subdivision. A conservation subdivision has no minimum lot size at all, beyond what the health department requires for wells and septic systems. An accessory structure is held to 40 feet at the front and 15 feet at the sides and rear.

The density column prints 2 acres, which is divided into the gross acreage of a parcel to give the maximum number of lots.
That number is a maximum rather than a guarantee: constrained land, or the cost of water, sewerage and other infrastructure, may reduce it.
Only one single-family or two-family building is allowed on a lot, in every district in this town.
More than one nonresidential building may stand on a lot so long as the district's maximum lot coverage is not exceeded.

Commercial District, Industrial District - The 2 acre minimum is for a lot with neither public water nor public sewer. With either one it is 0.5 acre. The table gives the Commercial and Industrial districts one shared row of standards.

Either service on its own is enough to reach the smaller lot: the footnote reads water or sewer, not both.
A lot must also be at least 150 feet wide and 100 feet deep.
Only one single-family or two-family building is allowed on a lot, in every district in this town.
More than one nonresidential building may stand on a lot so long as the district's maximum lot coverage is not exceeded.

Hamlet Residential District - The 2 acre minimum is for a lot with neither public water nor public sewer. With either one it is 0.5 acre, and the land each dwelling unit needs falls the same way. The 15 foot front setback may instead be the average footage of the immediately surrounding properties.

Either service on its own is enough to reach the smaller lot: the footnote reads water or sewer, not both.
Land per dwelling unit is 21,780 square feet with a service and 87,120 square feet without one.
A lot must also be at least 60 feet wide and 100 feet deep.
Only one single-family or two-family building is allowed on a lot, in every district in this town.
More than one nonresidential building may stand on a lot so long as the district's maximum lot coverage is not exceeded.

Developmental District, Development/Multi-Family Residential District - The 2 acre minimum is for a lot with neither public water nor public sewer. With either one it is 1 acre. The side setback of 50 feet is deeper than the 20 foot rear setback here.

Either service on its own is enough to reach the smaller lot: the footnote reads water or sewer, not both.
A lot must also be at least 50 feet wide and 150 feet deep.
Only one single-family or two-family building is allowed on a lot, in every district in this town.
More than one nonresidential building may stand on a lot so long as the district's maximum lot coverage is not exceeded.

ADUs vs. short-term rentals in New Baltimore

No local short-term-rental law on record - which is not the same as permission for Town of New Baltimore. The Town of New Baltimore has no local short-term rental law. That is not the same as permission, so confirm with the town building department before counting on rental income. These are separate questions from whether you can build an ADU — a unit you're allowed to add isn't automatically one you're allowed to rent nightly, so check both.

Good to know

Residential lot minimum2 ac — an ADU still has to fit the district's lot and setback envelope.
UtilityCentral Hudson territory.
Zoning codetownofnewbaltimore.gov/government/documents/zba/2016-2020-2/2017-3/2968-chapter-112-zoning/file
Building dept(518) 756-6671

ADU FAQ — New Baltimore, NY

Are ADUs allowed in New Baltimore, NY?

Town of New Baltimore has 6 districts. All districts prohibit ADUs. Check your address with the free ADU checker, or confirm with the building department at (518) 756-6671.

Do I need a special permit for an ADU in New Baltimore?

No. No district in Town of New Baltimore permits an ADU, so there is no permit to apply for. Codes change, so verify with the building department at (518) 756-6671 before ruling it out.

Can I use an ADU as a short-term rental in New Baltimore?

No local short-term-rental law on record - which is not the same as permission for Town of New Baltimore. ADU occupancy and short-term-rental rules are separate: an ADU you can build isn't automatically one you can rent nightly. Confirm both before you count on STR income.

Run the free ADU check for your parcel →

What an ADU costs to build in New Baltimore

Permission is one question and budget is another. An 800 sq ft accessory unit here runs roughly $195k–255k at a standard finish, and the per-square-foot rate comes in above a full house because the kitchen, bath, panel and heating plant cost the same either way. See the full cost to build an ADU in New Baltimore, priced by size.

How we know this

Sections analyzed: Ch. 112 (L.L. No. 4 of 2016) § 112-9A/B/C use table and closed-list rule; § 112-12A one building per lot; § 112-17 accessory structures; § 112-18 multifamily; definitions (58)-(59)
Districts confirmed: 6 of 6 — every mapped district.
Last reviewed: 2026-10-05
Not covered here: Overlay districts, the zoning map, and any conditions attached to an individual parcel. Size limits and owner-occupancy terms sit in the code section above, not in this summary.

More on New Baltimore: Full zoning for new construction · ADU build cost · House build cost · ADU rules across Greene County · All Greene County towns

ADU information for Town of New Baltimore is compiled from the municipal code (last reviewed 2026-10-05) and provided for decision-support only — not legal or architectural advice. ADU eligibility, size, owner-occupancy and permit conditions vary by district and often carry exceptions; verify with the building department at (518) 756-6671 before relying on any answer. Source: the Offsite / Aldo zoning dataset.