What it costs to build an ADU in Peekskill, NY

One-Family Residence District - A dwelling built without a garage needs one side yard of at least 22 ft. A corner lot counts as having two front yards, two side yards and no rear yard, with one side yard of at least 30 ft and the other at least 10 ft, or 22 ft without a garage.

• The front yard may be 20 ft where every wall facing the street meets the street line at 25° or more.
• Where every wall facing a side lot line meets it at 25° or more, the building may come within 8 ft of that line (§ 575-22D(2)(b)[1]).
• Lot frontage must be at least 2/3 of the lot width (§ 575-17).
• By Common Council special permit, senior housing, nursing homes and assisted living get 15 units an acre on at least two acres fronting a state or county road, within set distances of services.
• Buildings other than a one-family dwelling are limited to 2 1/2 stories.
• Lot depth may drop to 90 ft where the lot averages at least 100 ft (§ 575-22D(1)(d)).

One-Family Residence District, One-Family Residence District - A dwelling built without a garage needs one side yard of at least 18 ft (§ 575-22D).

• On a corner lot, one side yard must be at least 6 ft, or 18 ft without a garage.
• The front yard may be 20 ft where every wall facing the street meets the street line at 25° or more.
• Lot frontage must be at least 2/3 of the lot width (§ 575-17).
• By Common Council special permit, senior housing, nursing homes and assisted living get 15 units an acre on at least two acres fronting a state or county road, within set distances of services.
• Buildings other than a one-family dwelling are limited to 2 1/2 stories.
• Lot depth may drop to 90 ft where the lot averages at least 100 ft (§ 575-22D(1)(d)).

Low-Density Multiple Residence District - These figures are for a dwelling for four or more families in single ownership. The code sets no minimum lot area or width: each dwelling unit needs at least 5,000 sq ft of land and a lot must average at least 100 ft deep.

• Attached townhouses are permitted on a parcel of at least 10,000 sq ft, on lots at least 16 ft wide and 80 ft deep, at no more than eight an acre and 1,800 sq ft of floor area each (§ 575-25A(3)).
• Townhouse groups keep a side yard of at least 20 ft between groups and to the nearest property line, and front and rear yards may vary by up to 25%.
• Two- and three-family structures need a Planning Commission special permit: at least 7,500 sq ft and 75 ft of width for two families, at least 10,000 sq ft and 100 ft for three (§ 575-25B(2)).
• By Common Council special permit, senior housing, congregate care, assisted living and nursing homes need a site of at least two acres, at 15 units or 1.5 patient beds an acre (§ 575-25B(1)(a)).
• Each dwelling unit needs 400 sq ft of usable open space, and no building may exceed 200 ft in length.
• The front yard may be 25 ft where every wall facing the street meets it at 25° or more.

Planned Residential Development District - A planned residential development of any dwelling type needs a Common Council special permit and may not exceed nine units per net parcel acre, net of 20% for rights-of-way, water bodies, rock outcrops, slopes over 25% and the boundary setbacks.

• That density may rise by one unit per gross acre for land the City accepts for dedication.
• The figures shown are for a one-family dwelling permitted by right (§ 575-28C).
• Design densities run 5 an acre for detached houses, 6 semidetached, 7 attached, 10 garden apartments and 25 mid-rise apartments (§ 575-28E).
• Structures keep 50 ft from the district boundary for detached houses, 100 ft semidetached, 150 ft attached, 250 ft garden apartments and 400 ft mid-rise apartments of 4 to 7 stories.
• Each unit needs 1,000 sq ft of open space, and lot sizes, dimensions and heights may otherwise be freely arranged.
• For a one-family dwelling built without a garage, one side yard must be at least 22 ft.

One- and Two-Family Residence District - A two-family dwelling needs a Planning Commission special permit, a lot of at least 7,500 sq ft and 75 ft of width and four off-street spaces, and a conversion may not add doors or windows on a street elevation (§ 575-23B(1)).

• The figures shown are for a one-family dwelling. Other uses, unless otherwise stated, need a lot of at least 6,000 sq ft and 60 ft of width (§ 575-23E).
• A dwelling built without a garage needs one side yard of at least 18 ft.
• The front yard may be 20 ft where every wall facing the street meets it at 25° or more.
• Lot frontage must be at least 2/3 of the lot width (§ 575-17).
• By Common Council special permit, senior housing, nursing homes and assisted living get 15 units an acre on at least two acres fronting a state or county road, within set distances of services.
• Buildings other than a one-family dwelling are limited to 2 1/2 stories.

One-, Two- and Three-Family Residence District - A three-family dwelling needs a Planning Commission special permit, a lot of at least 10,000 sq ft and 100 ft of width and six off-street spaces, and a conversion may not add doors or windows on a street elevation (§ 575-24B(2)).

• Two-family structures need a Planning Commission special permit, a lot of at least 7,500 sq ft and 75 ft of width (§ 575-24B(1)).
• The figures shown are for a one-family dwelling. Other uses, unless otherwise stated, need a lot of at least 6,000 sq ft and 60 ft of width (§ 575-24E).
• A dwelling built without a garage needs one side yard of at least 18 ft.
• The front yard may be 20 ft where every wall facing the street meets it at 25° or more.
• Lot frontage must be at least 2/3 of the lot width (§ 575-17).
• By Common Council special permit, senior housing, nursing homes and assisted living get 15 units an acre on at least two acres fronting a state or county road, within set distances of services.

Medium-Density Multiple Residence District - Each dwelling unit needs at least 6,000 sq ft of land on a development parcel of less than five acres, and at least 4,000 sq ft on one of more than five acres. The code sets no minimum lot area, width or depth.

• On a parcel of less than five acres, land is counted after excluding 20% for rights-of-way, bodies of water, rock outcrops over 200 sq ft and slopes over 20% (§ 575-26D(1)).
• The side yard is at least half the height of the wall facing the side lot line, and never less than 12 ft.
• The front yard may be 20 ft where every wall facing the street meets it at 25° or more.
• Attached townhouses are permitted on a parcel of at least 10,000 sq ft, on lots at least 16 ft wide and 80 ft deep, at no more than eight an acre and 1,800 sq ft of floor area each (§ 575-26A(1)).
• By Common Council special permit, senior housing, congregate care, assisted living and nursing homes need a site of at least two acres, at one unit or 1.5 patient beds per 2,000 sq ft of land.
• Each dwelling unit needs 400 sq ft of usable open space, and no building may exceed 200 ft in length.

Waterfront District Subarea WF-PRD - Attached and semi-attached dwellings, townhouses, garden apartments and mid-rise apartments need a Common Council special permit, at an overall gross density of no more than nine units an acre, or eleven with bonuses for parkland, waterfront access or historic preservation.

• Those special-permit buildings are limited to three stories or 38 ft, which the Planning Commission may waive to 52 ft in a strip beside the former convent building.
• Design densities are 7 an acre for townhouses, 15 for garden apartments and 22 for mid-rise apartments (§ 575-43F(3)).
• The figures shown are for a one-family dwelling permitted by right. A dwelling without a garage needs one side yard of 18 ft.
• Development on slopes of 20% or more is to be avoided.
• A hotel by special permit needs at least 50 guest rooms, 1,000 sq ft of lot area per room and a 0.75 floor area ratio, or 700 sq ft per room and a 1.2 ratio if LEED certified.
• The Waterfront District Design Guidelines are criteria for every special permit.

Central Multiple Residence District - Yards grow with height: the front yard is 25 ft or one-third the height of the fronting wall, and the rear yard is 30 ft or one-third the building's height, whichever is greater in each case (§ 575-27D).

• The side yard is half the height of the facing wall, never less than 12 ft, for a building up to 36 ft, and 25 ft plus 1/4 of that wall's height for a taller one.
• Coverage may rise by 10% where 80% of the dwellings are in buildings of four stories or less (§ 575-27F).
• An affordable townhouse development by Common Council special permit may add up to eight units an acre, to 16, on a 25,000 sq ft parcel, with 65% coverage by principal structures (§ 575-27B(1)(h)).
• Townhouses are permitted at eight an acre on lots at least 16 ft wide and 80 ft deep (§ 575-27A(1)).
• By Common Council special permit, senior housing, congregate care, assisted living and nursing homes need a two-acre site, at one unit or 1.5 patient beds per 2,000 sq ft of land plus bonus credits.
• Each dwelling unit needs 400 sq ft of usable open space, and no building may exceed 200 ft in length.

Industrial Park District - Buildings stay 100 ft from any residence district boundary. Accessory buildings stay 25 ft from a rear property line, 80 ft where it adjoins a residence district (§ 575-41F).

• Height is measured from the higher street where a lot fronts two or more, and a penthouse or bulkhead over 12 ft high or covering more than 20% of the roof counts in the height.
• A hotel or motel by special permit needs at least 50 guest rooms, 1,000 sq ft of lot area per room and a 0.75 floor area ratio, or 700 sq ft per room and a 1.2 ratio if LEED certified.
• A self-storage warehouse of 25,000 sq ft or more may include one dwelling for an on-site security manager by Common Council special permit (§ 575-41C(2)).
• An amusement center by special permit needs one acre.

Shopping Center District - Limited - A side or rear yard rises to 40 ft where the property adjoins a residence district (§ 575-32F).

• The 150 ft of frontage must be on a street from which access is provided.
• The lot must be at least 100 ft deep at any point.
• Accessory buildings stay 10 ft from a property line, 25 ft where it adjoins a residence district, and never closer to the street than the principal building (§ 575-32G).
• All uses but parking are carried on in fully enclosed buildings, and loading stays 50 ft from any residential district boundary.
• The code sets no height limit in feet or stories for this district.

Shopping Center District - A side or rear yard rises to 70 ft where the property adjoins a residence district, and no building may be longer than 250 ft (§ 575-32F).

• The 250 ft of frontage must be on a street from which access is provided.
• The lot must be at least 200 ft deep at any point.
• Accessory buildings stay 10 ft from a property line, 25 ft where it adjoins a residence district, and never closer to the street than the principal building (§ 575-32G).
• All uses but parking are carried on in fully enclosed buildings, and loading stays 50 ft from any residential district boundary.
• The code sets no height limit in feet or stories for this district.

Central Commercial District - No front, side or rear yard is required, but any yard that is provided must be at least 6 ft (§ 575-33E).

• There is no minimum lot area, frontage or depth.
• A new mixed-use building by Planning Commission special permit may reach a 3.6 FAR and 50 ft or four stories, with a nonresidential ground floor and units of at least 600 sq ft averaging 750.
• Where a full story is artist lofts, that building may reach a 4.5 FAR and 65 ft or five stories (§ 575-33B(11)(a)).
• On streets listed in § 575-33B(11)(b), among them Diven, Howard and Decatur Streets, a mixed-use building is held to a 3.0 FAR, 60% building coverage and 35 ft or 3 1/2 stories.
• By Common Council special permit, senior citizen housing needs 350 sq ft of land per unit and a lot averaging 100 ft deep, at a 2.5 FAR, in efficiencies or one-bedrooms (§ 575-33B(2)).
• The code sets no general height limit in feet or stories for this district.

General Commercial District - No building may sit within 30 ft of a residence district boundary. Side and rear yards are not required, but one that is provided must be at least 6 ft, or 10 ft where it abuts a street (§ 575-34F).

• A special permit use needs a 20,000 sq ft lot, except laundromats, restaurants with outdoor dining, day-care centers and the other uses § 575-34B(2)(a) excludes.
• A special permit use that abuts a property with a residential use keeps a 25 ft rear yard and 15 ft side yards.
• On North Division Street lots of 40,000 sq ft or more, a mixed-use residential building by special permit may have 70% building coverage (85% with exterior green space) and a 5.0 FAR.
• On those North Division Street lots it needs 350 sq ft of land per unit, and the limit is four stories or 45 ft before bonus height, with a 10 ft maximum setback at street level.
• On South James, Brown, Park and South Broad Streets within 150 ft of the C - 2 district and 200 ft of the R - 6 district, such a building needs 525 sq ft of land per unit, with 90% building coverage.
• There, lots of 20,000 sq ft or more get five stories or 55 ft (up to nine stories or 103 ft with bonuses), and lots of 10,000 to 20,000 sq ft three stories or 35 ft (up to five stories or 55 ft).

Neighborhood Commercial District - A side or rear yard must be at least 20 ft where the lot adjoins a residence district (§ 575-35E).

• Residential development is permitted under the R - 3 district's provisions (§ 575-35A(7)).
• Retail stores are limited to 8,000 sq ft of selling area.
• The code sets no height limit in feet or stories for this district.
• Accessory buildings stay 10 ft from a rear property line, 30 ft where it adjoins a residence district (§ 575-35F).
• Frontage is measured on any street from which access is provided, and depth applies at any point.

Planned Commercial Development District - No building may sit within 125 ft of a residence district boundary (§ 575-42F).

• Office buildings and research laboratories are the permitted uses; retail and service uses need a special permit.
• The district is a floating one, intended for large tracts with direct access to the regional transportation system (§ 575-42A).
• Height is measured from the higher street where a lot fronts two or more, and a penthouse or bulkhead over 12 ft high or covering more than 20% of the roof counts in the height.
• Accessory buildings stay 25 ft from a rear property line, 80 ft where it adjoins a residence district, and earth-station antennas may reach 35 ft.
• A hotel or motel by special permit needs at least 50 guest rooms, 1,000 sq ft of lot area per room and a 0.75 floor area ratio, or 700 sq ft per room and a 1.2 ratio if LEED certified.

Light Industrial District - No building may sit within 100 ft of a residence district boundary. The lot must be at least 20,000 sq ft, with no minimum frontage or depth (§ 575-38E).

• Height is measured from the higher street where a lot fronts two or more, and a penthouse or bulkhead over 12 ft high or covering more than 20% of the roof counts in the height.
• Accessory buildings stay 25 ft from a rear property line, 70 ft where it adjoins a residence district (§ 575-38F).
• An amusement center by special permit needs one acre.
• A hotel or motel by special permit needs at least 50 guest rooms, 1,000 sq ft of lot area per room and a 0.75 floor area ratio, or 700 sq ft per room and a 1.2 ratio if LEED certified.

General Industrial District - No building may sit within 100 ft of a residence district boundary (§ 575-39E).

• Side and rear yards are not required, but one that is provided must be at least 6 ft.
• There is no minimum lot frontage or depth.
• Accessory buildings stay 10 ft from a rear property line, 30 ft where it adjoins a residence district (§ 575-39F).
• Accessory open storage is fully screened from adjacent properties and roads.
• Height is measured from the higher street where a lot fronts two or more, and a penthouse or bulkhead over 12 ft high or covering more than 20% of the roof counts in the height.
• A hotel or motel by special permit needs at least 50 guest rooms, 1,000 sq ft of lot area per room and a 0.75 floor area ratio, or 700 sq ft per room and a 1.2 ratio if LEED certified.

Design Industrial District - No part of a building may break the view corridors mapped in the district's design guidelines, which also require a landscaped buffer at least 50 ft wide along property lines abutting Route 9, Louisa Street and Lower South Street.

• There is no minimum lot frontage or depth.
• Accessory buildings must meet the same lot and building requirements.
• Height is measured from the higher street where a lot fronts two or more.
• A hotel or motel by special permit needs at least 50 guest rooms, 1,000 sq ft of lot area per room and a 0.75 floor area ratio, or 700 sq ft per room and a 1.2 ratio if LEED certified.

Design Industrial District - A diversified use development by Common Council special permit needs four acres in aggregate, each lot at least one acre, and keeps at least 35% of its land and building footprint in commercial or light manufacturing use (§ 575-40.1B(5)).

• Its residential buildings are limited to townhouses, garden apartments and mid-rise apartments on lots next to a residential district, with units of at least 600 sq ft averaging 750.
• Those residential buildings stay 25 ft from a street line, 15 ft from a property line, 60 ft from any nonresidential building and 100 ft from Route 9 travel lanes and railroad tracks.
• No part of a building may break the mapped view corridors, and a landscaped buffer at least 50 ft wide runs along property lines abutting Route 9, Louisa Street and Lower South Street.
• Transitional housing may sit 25 ft from a street line (§ 575-40.1B(6)).
• Accessory buildings must meet the same lot and building requirements.

Waterfront District Subarea WF-1 - Only municipal parks are permitted by right; marinas, boat repair and manufacture, ferry and charter services, restaurants and hotels need a Common Council special permit. Structures stay at least 50 ft from the water's edge, except water-dependent ones of one story or 12 ft.

• The Planning Commission may waive the height limit at Travis Point to four stories and 45 ft.
• A hotel needs at least 50 guest rooms, 1,000 sq ft of lot area per room and a 0.75 floor area ratio, or 700 sq ft per room and a 1.2 ratio if LEED certified.
• A hotel also keeps planted buffers of at least 20 ft to side and rear lot lines.
• The Waterfront District Design Guidelines are criteria for every special permit.

Waterfront District Subarea WF-2 - Buildings are set back 10 ft from the curb to hold a consistent street wall, except on South Street, Union Avenue and Depew Street, where they may be built to the road right-of-way (§ 575-43E).

• Side and rear yards are not required, but one that is provided must be at least 10 ft.
• The Planning Commission may vary the setback for a plaza or open space or a better alignment with adjacent buildings.
• The Common Council may grant one more story, to 55 ft, on the east side of Water Street and Railroad Avenue, and two more, to 65 ft, on Central Avenue, for an infrastructure payment or improvements.
• Commercial uses permitted by right are limited to 4,000 sq ft of floor area per structure.
• Units in a multiple-dwelling development of more than five units must average at least 800 sq ft. Residential parking may not occupy the street frontage.
• Light manufacturing on North Water Street by special permit keeps at least 40% of the site green or pervious.

Waterfront District Subarea WF-3 - The Common Council may grant up to two more stories, not to exceed 85 ft, for an infrastructure payment or improvements. Uses are those of the Waterfront District Subarea WF-2.

• Apart from height, the lot and building requirements of the Waterfront District Subarea WF-2 apply here (§ 575-43E.1(3)).
• Buildings are set back 10 ft from the curb to hold a consistent street wall, except on South Street, Union Avenue and Depew Street, where they may be built to the road right-of-way.
• The Planning Commission may vary the setback for a plaza or open space or a better alignment with adjacent buildings.
• No side or rear yard is required, but one that is provided must be at least 10 ft (§ 575-43E(3)).