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ADU · Dutchess County

Can you build an ADU in East Fishkill, NY?

Town of East Fishkill has 17 districts. 5 districts prohibit ADUs, 4 allow them with occupancy restrictions. 8 districts have incomplete data - verify with the building department at (845) 221-2310. Check your address to confirm the district that applies to your parcel:

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What the East Fishkill 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 3-Acre 3 ac 50 / 30 / 50 ft 35 ft Occupancy restricted
Residential 2-Acre 2 ac 50 / 30 / 50 ft 35 ft Occupancy restricted
Residential 1-Acre 1 ac 50 / 25 / 50 ft 35 ft Occupancy restricted
Residential 1/2-Acre
Residential 1/3-Acre 0.3333 ac 35 / 15 / 30 ft 35 ft Occupancy restricted
Residential 1/4-Acre
Conservation Residential District 0.1607 ac 20 / 15 / 30 ft 35 ft
Planned Commercial Park 20 ac 100 / 50 / 50 ft 50 ft No
Planned Research and Development Park 5 ac 100 / 50 / 80 ft 40 ft
General Business 40 / 10 / 20 ft 30 ft No
Central Business 40 / 10 / 20 ft 30 ft No
Mixed-Use 25 / 10 / 20 ft 35 ft
Hamlet Center 10 / 5 / 15 ft 35 ft No
Transitional 2 ac 75 / 25 / 20 ft 30 ft
Light Industrial 1 ac 50 / 20 / 20 ft 30 ft No
Heavy Industrial 1 ac 50 / 20 / 30 ft 45 ft
Light Industrial/Retail 1 ac 100 / 20 / 30 ft 35 ft

Residential 3-Acre — Minimum frontage is 75 ft, published separately from the 150 ft lot width and the 175 ft lot depth — three different lot dimensions, all of which must be met. Height is capped at 2 1/2 stories as well as 35 ft. Where a property abuts a road whose right-of-way has never been dedicated to the Town, county or state, 25 ft is ADDED to the setback and it is then measured from the CENTRE LINE of the road rather than the property line. On any parcel abutting the Taconic State Parkway or I-84 a 100 ft buffer to any structure, building or parking area applies, and on any parcel abutting a state or county road outside the designated hamlet areas a 100 ft setback from the edge of pavement to any building applies; both override any less restrictive yard requirement elsewhere in the code. Lot size and, in the nonresidential districts, coverage and floor area ratio are all subject to the Environmentally Sensitive Lands Law (§ 194-14.1), which can raise the requirement on a constrained parcel. On a flag lot the accessway area is excluded from the lot area, no flag lot may be smaller than one acre, street frontage is 50 ft, and the strip connecting the buildable portion to the street must be at least 50 ft wide along its entire length (§ 194-92.1).

Residential 2-Acre, Residential 1-Acre — Minimum frontage is 50 ft, published separately from the 125 ft lot width and the 150 ft lot depth — three different lot dimensions, all of which must be met. Height is capped at 2 1/2 stories as well as 35 ft. Where a property abuts a road whose right-of-way has never been dedicated to the Town, county or state, 25 ft is ADDED to the setback and it is then measured from the CENTRE LINE of the road rather than the property line. On any parcel abutting the Taconic State Parkway or I-84 a 100 ft buffer to any structure, building or parking area applies, and on any parcel abutting a state or county road outside the designated hamlet areas a 100 ft setback from the edge of pavement to any building applies; both override any less restrictive yard requirement elsewhere in the code. Lot size and, in the nonresidential districts, coverage and floor area ratio are all subject to the Environmentally Sensitive Lands Law (§ 194-14.1), which can raise the requirement on a constrained parcel. On a flag lot the accessway area is excluded from the lot area, no flag lot may be smaller than one acre, street frontage is 50 ft, and the strip connecting the buildable portion to the street must be at least 50 ft wide along its entire length (§ 194-92.1).

Residential 1/2-Acre — § 194-4 names R-1/2 as one of the Town's residential districts, but the Schedule of Bulk Regulations has no column for it — the schedule runs R-3, R-2, R-1 and R-1/3 and skips this one. No dimensional standard is recorded because none is published there. Confirm the applicable standards with the Town before relying on this district. Where a property abuts a road whose right-of-way has never been dedicated to the Town, county or state, 25 ft is ADDED to the setback and it is then measured from the CENTRE LINE of the road rather than the property line. On any parcel abutting the Taconic State Parkway or I-84 a 100 ft buffer to any structure, building or parking area applies, and on any parcel abutting a state or county road outside the designated hamlet areas a 100 ft setback from the edge of pavement to any building applies; both override any less restrictive yard requirement elsewhere in the code.

Residential 1/3-Acre — Minimum frontage is 50 ft, published separately from the 100 ft lot width and the 125 ft lot depth — three different lot dimensions, all of which must be met. Height is capped at 2 1/2 stories as well as 35 ft. Where a property abuts a road whose right-of-way has never been dedicated to the Town, county or state, 25 ft is ADDED to the setback and it is then measured from the CENTRE LINE of the road rather than the property line. On any parcel abutting the Taconic State Parkway or I-84 a 100 ft buffer to any structure, building or parking area applies, and on any parcel abutting a state or county road outside the designated hamlet areas a 100 ft setback from the edge of pavement to any building applies; both override any less restrictive yard requirement elsewhere in the code. Lot size and, in the nonresidential districts, coverage and floor area ratio are all subject to the Environmentally Sensitive Lands Law (§ 194-14.1), which can raise the requirement on a constrained parcel. On a flag lot the accessway area is excluded from the lot area, no flag lot may be smaller than one acre, street frontage is 50 ft, and the strip connecting the buildable portion to the street must be at least 50 ft wide along its entire length (§ 194-92.1).

Residential 1/4-Acre — § 194-4 names R-1/4 as one of the Town's residential districts, but the Schedule of Bulk Regulations has no column for it — the schedule runs R-3, R-2, R-1 and R-1/3 and skips this one. No dimensional standard is recorded because none is published there. Confirm the applicable standards with the Town before relying on this district. Where a property abuts a road whose right-of-way has never been dedicated to the Town, county or state, 25 ft is ADDED to the setback and it is then measured from the CENTRE LINE of the road rather than the property line. On any parcel abutting the Taconic State Parkway or I-84 a 100 ft buffer to any structure, building or parking area applies, and on any parcel abutting a state or county road outside the designated hamlet areas a 100 ft setback from the edge of pavement to any building applies; both override any less restrictive yard requirement elsewhere in the code.

Conservation Residential District — CRD works on two scales at once and only the lot scale is recorded above. The PARCEL being developed must be at least 150 acres and have 100 ft of frontage on a state or county highway; within it, the individual lot standards depend on the dwelling type. The base row here is a single-family DETACHED lot at 7,000 sq ft. A semidetached dwelling or an attached end unit takes 4,000 sq ft and an attached unit 2,500 sq ft, both recorded as conditions; neither publishes a lot width, a lot depth or a side yard, so those stay at the detached figures only where the schedule repeats them. Height is capped at 2 1/2 stories as well as 35 ft. See § 194-22 for further CRD development standards. Where a property abuts a road whose right-of-way has never been dedicated to the Town, county or state, 25 ft is ADDED to the setback and it is then measured from the CENTRE LINE of the road rather than the property line. On any parcel abutting the Taconic State Parkway or I-84 a 100 ft buffer to any structure, building or parking area applies, and on any parcel abutting a state or county road outside the designated hamlet areas a 100 ft setback from the edge of pavement to any building applies; both override any less restrictive yard requirement elsewhere in the code. Lot size and, in the nonresidential districts, coverage and floor area ratio are all subject to the Environmentally Sensitive Lands Law (§ 194-14.1), which can raise the requirement on a constrained parcel. On a flag lot the accessway area is excluded from the lot area, no flag lot may be smaller than one acre, street frontage is 50 ft, and the strip connecting the buildable portion to the street must be at least 50 ft wide along its entire length (§ 194-92.1).

Planned Commercial Park — Every use in this district needs site plan approval under Article VII. The schedule publishes TWO coverage columns. Maximum LOT coverage is 50% and maximum BUILDING coverage 25%; the figure recorded here is the building one. Height is capped at 4 stories as well as 50 ft. The side yard is published twice, as one side and as both sides together. A minimum of 20% of the lot must be open space. Where a property abuts a road whose right-of-way has never been dedicated to the Town, county or state, 25 ft is ADDED to the setback and it is then measured from the CENTRE LINE of the road rather than the property line. On any parcel abutting the Taconic State Parkway or I-84 a 100 ft buffer to any structure, building or parking area applies, and on any parcel abutting a state or county road outside the designated hamlet areas a 100 ft setback from the edge of pavement to any building applies; both override any less restrictive yard requirement elsewhere in the code. Lot size and, in the nonresidential districts, coverage and floor area ratio are all subject to the Environmentally Sensitive Lands Law (§ 194-14.1), which can raise the requirement on a constrained parcel. No access other than emergency access may run to or from a residential district.

Planned Research and Development Park — The five-acre figure carries an asterisk: § 194-55 allows variations in the acreage, and § 194-55A through D add further requirements. For lots created before L.L. No. 4-1993 the Town Board may set LESS restrictive bulk standards (§ 194-55E). The schedule publishes TWO coverage columns. Maximum LOT coverage is 50% and maximum BUILDING coverage 25%; the figure recorded here is the building one. Height is capped at 3 stories as well as 40 ft. The side yard is published twice, as one side and as both sides together. A minimum of 20% of the lot must be open space. Where a property abuts a road whose right-of-way has never been dedicated to the Town, county or state, 25 ft is ADDED to the setback and it is then measured from the CENTRE LINE of the road rather than the property line. On any parcel abutting the Taconic State Parkway or I-84 a 100 ft buffer to any structure, building or parking area applies, and on any parcel abutting a state or county road outside the designated hamlet areas a 100 ft setback from the edge of pavement to any building applies; both override any less restrictive yard requirement elsewhere in the code. Lot size and, in the nonresidential districts, coverage and floor area ratio are all subject to the Environmentally Sensitive Lands Law (§ 194-14.1), which can raise the requirement on a constrained parcel. No access other than emergency access may run to or from a residential district.

General Business, Central Business — Every use in this district needs site plan approval under Article VII. In the commercial district along State Route 52 west of the Taconic Parkway the front setback is 100 ft. Where a General Business district (B-1, B-2, B-3 or HC) abuts a residential district, the side yard on the abutting side is 20 ft. A private swimming pool or tennis court accessory to a dwelling in a "B" zone takes R-1 bulk. The schedule publishes TWO coverage columns. Maximum LOT coverage is 75% and maximum BUILDING coverage 35%; the figure recorded here is the building one. Height is capped at 2 stories as well as 30 ft. The side yard is published twice, as one side and as both sides together. Where a property abuts a road whose right-of-way has never been dedicated to the Town, county or state, 25 ft is ADDED to the setback and it is then measured from the CENTRE LINE of the road rather than the property line. On any parcel abutting the Taconic State Parkway or I-84 a 100 ft buffer to any structure, building or parking area applies, and on any parcel abutting a state or county road outside the designated hamlet areas a 100 ft setback from the edge of pavement to any building applies; both override any less restrictive yard requirement elsewhere in the code. Lot size and, in the nonresidential districts, coverage and floor area ratio are all subject to the Environmentally Sensitive Lands Law (§ 194-14.1), which can raise the requirement on a constrained parcel. No access other than emergency access may run to or from a residential district.

Mixed-Use — Where a General Business district (B-1, B-2, B-3 or HC) abuts a residential district, the side yard on the abutting side is 20 ft. A private swimming pool or tennis court accessory to a dwelling in a "B" zone takes R-1 bulk. The schedule publishes TWO coverage columns. Maximum LOT coverage is 75% and maximum BUILDING coverage 50%; the figure recorded here is the building one. Height is capped at 2.5 stories as well as 35 ft. The side yard is published twice, as one side and as both sides together. Where a property abuts a road whose right-of-way has never been dedicated to the Town, county or state, 25 ft is ADDED to the setback and it is then measured from the CENTRE LINE of the road rather than the property line. On any parcel abutting the Taconic State Parkway or I-84 a 100 ft buffer to any structure, building or parking area applies, and on any parcel abutting a state or county road outside the designated hamlet areas a 100 ft setback from the edge of pavement to any building applies; both override any less restrictive yard requirement elsewhere in the code. Lot size and, in the nonresidential districts, coverage and floor area ratio are all subject to the Environmentally Sensitive Lands Law (§ 194-14.1), which can raise the requirement on a constrained parcel. No access other than emergency access may run to or from a residential district.

Hamlet Center — For a parcel in the Hamlet Center District abutting a residential district the rear setback is 20 ft rather than 15. Where a General Business district (B-1, B-2, B-3 or HC) abuts a residential district, the side yard on the abutting side is 20 ft. A private swimming pool or tennis court accessory to a dwelling in a "B" zone takes R-1 bulk. The schedule publishes TWO coverage columns. Maximum LOT coverage is 90% and maximum BUILDING coverage 75%; the figure recorded here is the building one. Height is capped at 2.5 stories as well as 35 ft. The side yard is published twice, as one side and as both sides together. Where a property abuts a road whose right-of-way has never been dedicated to the Town, county or state, 25 ft is ADDED to the setback and it is then measured from the CENTRE LINE of the road rather than the property line. On any parcel abutting the Taconic State Parkway or I-84 a 100 ft buffer to any structure, building or parking area applies, and on any parcel abutting a state or county road outside the designated hamlet areas a 100 ft setback from the edge of pavement to any building applies; both override any less restrictive yard requirement elsewhere in the code. Lot size and, in the nonresidential districts, coverage and floor area ratio are all subject to the Environmentally Sensitive Lands Law (§ 194-14.1), which can raise the requirement on a constrained parcel. No access other than emergency access may run to or from a residential district.

Transitional — B-1A publishes a 35% maximum LOT coverage and no building coverage at all, so no building coverage figure is recorded. A full 25 ft landscaped buffer is required from the road right-of-way into the property along every public roadway the lot touches, front or side or both, and it may count as part of the front or side yard; berming and heavy landscaping are set by the Planning Board. The schedule publishes TWO coverage columns. Maximum LOT coverage is 35% and maximum BUILDING coverage not stated; the figure recorded here is the building one. Height is capped at 2 stories as well as 30 ft. The side yard is published twice, as one side and as both sides together. Where a property abuts a road whose right-of-way has never been dedicated to the Town, county or state, 25 ft is ADDED to the setback and it is then measured from the CENTRE LINE of the road rather than the property line. On any parcel abutting the Taconic State Parkway or I-84 a 100 ft buffer to any structure, building or parking area applies, and on any parcel abutting a state or county road outside the designated hamlet areas a 100 ft setback from the edge of pavement to any building applies; both override any less restrictive yard requirement elsewhere in the code. Lot size and, in the nonresidential districts, coverage and floor area ratio are all subject to the Environmentally Sensitive Lands Law (§ 194-14.1), which can raise the requirement on a constrained parcel. No access other than emergency access may run to or from a residential district.

Light Industrial — The schedule prints a minimum lot width at the building line of 10 ft for I-1, where I-2 and I-3 both print 100 ft. It is recorded as published rather than corrected, but it should be confirmed with the Town before it is relied on. The schedule publishes TWO coverage columns. Maximum LOT coverage is 75% and maximum BUILDING coverage 25%; the figure recorded here is the building one. Height is capped at 2 stories as well as 30 ft. The side yard is published twice, as one side and as both sides together. Where a property abuts a road whose right-of-way has never been dedicated to the Town, county or state, 25 ft is ADDED to the setback and it is then measured from the CENTRE LINE of the road rather than the property line. On any parcel abutting the Taconic State Parkway or I-84 a 100 ft buffer to any structure, building or parking area applies, and on any parcel abutting a state or county road outside the designated hamlet areas a 100 ft setback from the edge of pavement to any building applies; both override any less restrictive yard requirement elsewhere in the code. Lot size and, in the nonresidential districts, coverage and floor area ratio are all subject to the Environmentally Sensitive Lands Law (§ 194-14.1), which can raise the requirement on a constrained parcel. No access other than emergency access may run to or from a residential district.

Heavy Industrial — The schedule publishes TWO coverage columns. Maximum LOT coverage is 75% and maximum BUILDING coverage 25%; the figure recorded here is the building one. Height is capped at 3 stories as well as 45 ft. The side yard is published twice, as one side and as both sides together. Where a property abuts a road whose right-of-way has never been dedicated to the Town, county or state, 25 ft is ADDED to the setback and it is then measured from the CENTRE LINE of the road rather than the property line. On any parcel abutting the Taconic State Parkway or I-84 a 100 ft buffer to any structure, building or parking area applies, and on any parcel abutting a state or county road outside the designated hamlet areas a 100 ft setback from the edge of pavement to any building applies; both override any less restrictive yard requirement elsewhere in the code. Lot size and, in the nonresidential districts, coverage and floor area ratio are all subject to the Environmentally Sensitive Lands Law (§ 194-14.1), which can raise the requirement on a constrained parcel. No access other than emergency access may run to or from a residential district.

Light Industrial/Retail — The schedule publishes TWO coverage columns. Maximum LOT coverage is 65% and maximum BUILDING coverage 25%; the figure recorded here is the building one. Height is capped at 2 stories as well as 35 ft. The side yard is published twice, as one side and as both sides together. Where a property abuts a road whose right-of-way has never been dedicated to the Town, county or state, 25 ft is ADDED to the setback and it is then measured from the CENTRE LINE of the road rather than the property line. On any parcel abutting the Taconic State Parkway or I-84 a 100 ft buffer to any structure, building or parking area applies, and on any parcel abutting a state or county road outside the designated hamlet areas a 100 ft setback from the edge of pavement to any building applies; both override any less restrictive yard requirement elsewhere in the code. Lot size and, in the nonresidential districts, coverage and floor area ratio are all subject to the Environmentally Sensitive Lands Law (§ 194-14.1), which can raise the requirement on a constrained parcel. No access other than emergency access may run to or from a residential district.

ADUs vs. short-term rentals in East Fishkill

Short-term rentals allowed with local rules for Town of East Fishkill. STR law enacted Aug 2023 for all rentals 30 days or less. Annual registration required with Building Dept; $500/yr fee. Annual fire/safety inspection required. Allowed only in certain residential zones (prohibited in R-1/2, R-1/3, R-1/4 and on non-conforming lots). Single-family dwellings only. Max 2 persons/bedroom. Contact Building Dept at (845) 221-2310. 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.

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ADU FAQ — East Fishkill, NY

Are ADUs allowed in East Fishkill, NY?

Town of East Fishkill has 17 districts. 5 districts prohibit ADUs, 4 allow them with occupancy restrictions. 8 districts have incomplete data - verify with the building department at (845) 221-2310. Check your address with the free ADU checker.

Do I need a special permit for an ADU in East Fishkill?

No district in Town of East Fishkill requires a special-use permit for an ADU - 5 districts prohibit ADUs, 4 allow them with occupancy restrictions. Site-plan review or a building permit may still apply.

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

Short-term rentals allowed with local rules for Town of East Fishkill. 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.

What an ADU costs to build in East Fishkill

Permission is one question and budget is another. An 800 sq ft accessory unit here runs roughly $210k–275k 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 East Fishkill, priced by size.

ADU information for Town of East Fishkill is compiled from the municipal code (last reviewed 2026-08-16) 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 (845) 221-2310 before relying on any answer. Source: Offsite / Aldo zoning dataset, municipalData.js.

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