ADU · Delaware County

Can you build an ADU in Walton, NY?

Village of Walton 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 Walton code says

No district in the Village of Walton lists an accessory dwelling unit or accessory apartment, and § 260-4 prohibits uses that are not specifically listed. In R-S and R-M, a second unit means building a two-family or multifamily dwelling as the principal building.

Conditions the code attaches:

R-S permits two-family dwellings and, by special permit, townhouses and garden apartments at up to 14 units per acre on a minimum one-acre site.
R-M permits two-family, three-family, four-family-and-larger and townhouse dwellings.
Each of those dwellings has its own lot width and lot depth standard, rather than being a unit added to a single-family house.
The Town of Walton's accessory dwelling rules in § 200-61.1 do not apply in the Village.

What the Walton 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
Residential Recreational	—	30 / 20 / 40 ft	25 ft	No
Single-Family Residential	—	25 / 10 / 25 ft	35 ft	No
Multiple-Family Residential	—	25 / 10 / 40 ft	40 ft	No
General Business	—	50 / 25 / 50 ft	40 ft	No
Mixed Use	—	50 / 25 / 50 ft	40 ft	No
General Industry	—	50 / 25 / 50 ft	45 ft	No

Residential Recreational - R-R permits single-family dwellings only, with no two-family, multifamily or townhouse use, so a second dwelling unit cannot be added by any route. Lots are sized by width and depth, as the Village does not regulate lot area.

In a subdivision of five or more dwellings each lot may fall to 16,000 sq ft, provided common or public space keeps an average of 25,000 sq ft per dwelling and the Board approves its maintenance.
A house of worship needs 200 ft of width and 200 ft of depth, double a dwelling's width, and an animal hospital or a sand, gravel or stone extraction needs 300 by 300.
On a street under 50 ft wide, the front yard is measured from the center line of the street and is 55 ft.
The 75% coverage cap is qualified by a sentence saying floor area ratio determines lot coverage, but no ratio is stated in the district. Confirm with the building department.
Lot width is measured at the building line. The separate minimum street frontage is 40 ft.

Single-Family Residential - The 70 by 100 ft lot applies with public water and public sewerage. With public water but individual sewerage the minimum is 90 by 100 ft, and with a private water system and individual sewerage it is 100 by 100 ft.

A house of worship needs 200 by 200 ft regardless of utility service, nearly three times a dwelling's width.
A two-family dwelling uses the same lot width and depth as a single-family dwelling, so a duplex needs no extra land.
Townhouses and garden apartments need a special permit.
On a street under 50 ft wide the front yard is measured from the center line and is 50 ft, and lot width is measured at the building line, with a separate 40 ft minimum street frontage.
Lots are sized by width and depth, as the Village does not regulate lot area.
Lot area averaging for single- or two-family dwellings is permitted only in a subdivision of two or more lots.

Multiple-Family Residential - Three-family, larger multifamily and townhouse development in R-M requires public water and public sewerage, so it cannot be built on an unserved lot of any size. The 60 by 100 ft lot is for a single- or two-family dwelling with both services.

With public water but individual sewerage a single- or two-family lot jumps from 60 by 100 ft to 100 ft by 125 ft, roughly 2.1 times the land; an individual water system gives the same figure.
The three-family row is 70 ft by 100 ft and needs public water and public sewerage; a four-family or larger is sized per dwelling unit at 80 ft of width by 100 ft of depth.
On the face of the table a 6-unit building needs 480 ft of width, so confirm that reading with the Village before sizing anything above three units.
A townhouse lot is 18 ft wide by 80 ft deep, the narrowest the Village allows, and needs public water and sewerage; it takes 25 ft front, 20 ft each side and a 50 ft rear yard.
A house of worship needs 100 by 100.
The side yard is 15 ft for a three-story dwelling, on the same 20 ft combined total for the two sides.

General Business - In B-G the side and rear yards apply only where the lot adjoins a residential district or an existing residence. A lot surrounded by commercial or industrial neighbours has no side or rear yard obligation.

The district sets no minimum lot area, width or depth and no maximum lot coverage.
On a street under 50 ft wide, the front yard is measured from the center line of the street and is 75 ft.
No combined total for the two side yards is required.
The height limit applies to dwellings as well as business buildings.

Mixed Use - Side and rear yards in M-U are required only where the lot adjoins a residential district or an existing residence, so a lot surrounded by commercial or industrial neighbours has no side or rear yard obligation.

The district sets no minimum lot area, width or depth and no maximum lot coverage.
On a street under 50 ft wide, the front yard is measured from the center line of the street and is 75 ft.
No combined total for the two side yards is required.
The height limit applies to dwellings as well as business buildings.

General Industry - Side and rear yards in I-G apply only where the lot adjoins a residential district or an existing residence, so an industrial lot surrounded by industrial neighbours has no side or rear yard obligation. Height may exceed 45 ft if approved by the Board of Appeals.

The district sets no minimum lot area, width or depth and no maximum lot coverage.
On a street under 50 ft wide, the front yard is measured from the center line of the street and is 75 ft.
No combined total for the two side yards is required.

ADUs vs. short-term rentals in Walton

No local short-term-rental law on record - which is not the same as permission for Village of Walton. The Village of Walton has no short-term rental law, and § 260-4 prohibits uses its districts do not list; no district lists a short-term or vacation rental. The rule is not confirmed, so confirm with the building department before counting on STR 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

Zoning codeecode360.com/33093739

ADU FAQ — Walton, NY

Are ADUs allowed in Walton, NY?

Village of Walton has 6 districts. All districts prohibit ADUs. Check your address with the free ADU checker, or confirm with the building department.

Do I need a special permit for an ADU in Walton?

No. No district in Village of Walton permits an ADU, so there is no permit to apply for. Codes change, so verify with the building department before ruling it out.

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

No local short-term-rental law on record - which is not the same as permission for Village of Walton. 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.

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What an ADU costs to build in Walton

Permission is one question and budget is another. An 800 sq ft accessory unit here runs roughly $185k–245k 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 Walton, priced by size.

How we know this

Sections analyzed: Ch. 260 §§ 260-10 to 260-15 district use lists (all six districts); § 260-4 Interpretation
Districts confirmed: 6 of 6 — every mapped district.
Last reviewed: 2026-08-20
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 Walton: Full zoning for new construction · ADU build cost · House build cost · ADU rules across Delaware County · All Delaware County towns

ADU information for Village of Walton is compiled from the municipal code (last reviewed 2026-08-20) 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 municipality before relying on any answer. Source: the Offsite / Aldo zoning dataset.