See "building, accessory."

A group of interrelated rooms that: (a) constitutes an entirely self-contained portion of a principal, one-family dwelling, or is located in an accessory building on the same lot as a principal, one-family dwelling; (b) contains complete housekeeping facilities for only one family; (c) has no cooking facilities, food preparation facilities, sanitary facilities, or enclosed space in common with any other part of the building in which it is located, except vestibules, entrances, porches, garages, or laundry, heating or air conditioning rooms or equipment; and (d) complies with the provisions of section 10B-255(c)(3) of the Code of the Township of Princeton, New Jersey 1968. Wherever the term “secondary residence” is used in this chapter, it shall mean “accessory dwelling unit.”

An "accessory use" is a use which is clearly incidental to, customarily found in connection with and, except in the case of parking spaces or loading berths, located on the same lot as the principal use to which it is related. When "accessory" is used in the text, it shall have the same meaning as "accessory use." "Accessory use" shall include without limitation, the following:

A system of electrical conductors that transmit or receive radio frequency signals for wireless communications.

A structure other than a telecommunications tower which is attached to a building and on which one or more antennas are located.

A facility which is licensed by the department of health, in accordance with N.J.A.C. 8:36 as that section exists as of March 14, 2000, to provide apartment-style housing and congregate dining and to assure that assisted living services are available when needed. An assisted living residence is within the continuum of senior housing types recommended by the Princeton Community Master Plan. It is a form of institutional health care facility which offers assisted living services for the frail elderly and other persons with physical or cognitive impairment. This does not include individuals requiring acute, intermediate, ongoing, residential type supervised treatment for social, emotional, psychiatric, addictions or school classified difficulties. It is an alternative for persons who because of age, illness, or infirmity cannot live independently, but who do not require continuous nursing home-level care. "Assisted living services" means a coordinated array of supportive personal and health services, available 24 hours per day, to residents who have been assessed to need these services, including residents who require formal long-term care.

The part of a building that is immediately below and wholly or partly within the roof framing of a pitched roof. The spring point of such pitched roof shall be no greater than five feet above the finished floor level of the attic (Fig. 1).

Space in which the ceiling (defined as the bottom of the structural members of the floor above) is less than four feet above the average finished grade line along the outside walls of the building and is more than five feet in height measured from the finished floor, except at points of entry or access.

A sign which directs attention to a business, commodity, service or entertainment conducted, sold or offered elsewhere than upon the lot on which such sign is situated.

Any combination of materials forming any construction, except: (a) Where entirely underground, so as to permit the use of the ground above the same as if no building were present and without substantial change in the existing grade; and (b) fences and walls of six feet in height or less. The terms "building" and "structure" are used synonymously.

A detached building, subordinate to the principal building on the same lot as the principal building. Sleeping facilities and cooking facilities other than outdoor barbecue pits or picnic fireplaces shall not be permitted unless part of an accessory dwelling unit. The term "accessory building" shall not include garden or tool houses with an area of less than thirty-two square feet and without a foundation when located in accordance with section B17A-380 of this article, but it shall include the following:

That building which houses the primary use on a lot. In the R1, R2, R3 and R4 zoning districts, only one principal building is permitted on a lot. The following shall be considered part of the principal building:

Use of a common PWTF or a common site by two or more wireless license holders or by one wireless license holder for more than one type of communication technology and/or placement of a PWTF on a structure.

A development of residential living units exclusively for persons who are 62 years of age or older, or for couples, one of whom is at least 62 years of age, which provides a continuum of accommodations and care and which provides "continuing care" as an integral part of the residential development. Continuing care is the provision of lodging and nursing, medical or other health related services at the CCRC or at another location to an individual pursuant to an agreement effective for the life of the individual or for a period greater than one year, and, in consideration of the payment of an entrance fee with or without other periodic charges, provided that the person receiving the care is not related to the person who provides the care.

The continuing care retirement community (CCRC) must include independent living units and assisted living units and nursing care units. The nursing care units and/or assisted living units may be made available at the CCRC or by contract at another facility. The CCRC shall also include facilities and arrangements for providing continuing care and meals for residents, with or without common dining facilities, and may include accessory services customarily incidental to a continuing care retirement community.

The following accessory structures and uses shall be permitted in a continuing care retirement community: recreation facilities, physical therapy facilities, entertainment facilities, libraries, food preparation facilities, dining facilities, linen service facilities, nursing services, housekeeping services, security facilities, administrative offices, staff facilities, storage and maintenance facilities, chapels, temporary guest lodging facilities, barber shop and beauty parlors, facilities for the sale of sundries, personal articles, newspapers, food, and similar convenience products to the residents, and such other uses as are customarily associated with and subordinate to the principal permitted uses. Except as may otherwise be authorized, all accessory facilities, functions, and services shall be for the use and benefit of the residents of the facility. The space for accessory uses shall not constitute gross floor area for purposes of any floor area ratio limitation to the extent of 5% of the total gross floor area of the CCRC development, excluding the space for accessory uses.

An open space which is enclosed on all sides by exterior walls of a building and is unobstructed from the ground to the sky.

An open space which is enclosed on three sides by exterior walls of a building and is unobstructed from the ground to the sky.

The area covered by all buildings on a lot, expressed as a percentage of the lot area.

The average elevation, established by existing curbs or borough ordinance of the street grade along the entire street line of the lot. Where a building is on a corner lot, the curb level is the average level of such elevations on the two intersecting streets. Where a front yard of 25 feet or more is provided or where there are two or more principal buildings on the lot, the curb level is the average level of the land immediately adjacent to the building prior to or after any excavation or fill, as may be determined by the development enforcement officer.

That part of an educational institution which provides sleeping accommodations, with or without accessory common rooms and cooking and eating facilities, for groups of unmarried students in attendance at the educational institution.

An establishment that by design, physical facilities, service or packaging procedures encourages or permits customers to receive services or obtain goods while remaining in their motor vehicles.

A building or entirely self-contained portion thereof, containing complete housekeeping facilities for only one family, including any domestic servants employed on the premises, and having no cooking, food preparation or sanitary facilities in common with other dwelling units and no common enclosed space, other than vestibules, entrance or porches, and laundry, heating and air conditioning rooms and equipment. The terms shall not include a boarding house, convalescent home, dormitory, fraternity or sorority house, hotel, nursing or similar home or other similar building, or a secondary residence.

A one-family dwelling with two common or party walls separating it from adjacent units on both sides, or one party wall in the case of a building at the end of a group of attached dwellings.

A building or portion thereof containing three or more dwelling units, other than attached dwellings.

A detached building containing one dwelling unit only, or if permitted in the district, one dwelling unit and secondary residence. The term shall include a parish house.

A detached building containing two dwelling units, either side by side, as in the case of a semi-detached dwelling, or one over the other.

An education institution of higher learning chartered by the state, or a private educational institution approved by and subject to regulations prescribed by the state and giving instructions or affording facilities for study and research in academic or technical subjects primarily at or above the college level.

An addition to the aggregate floor area or an increase in the height of any existing building or area of the lot covered by any building.

An increase in the amount of existing floor area used for an existing use with an existing building.

One or more persons occupying one dwelling unit as a single, non-profit housekeeping unit, whose relationship is of a stable and domestic character. Uses such as non-familial institutional uses, rooming houses, hotels, clubs, fraternities, sororities, transient housing or similar types of housing shall not be considered family uses. It shall be considered a family use to provide supportive personal and health services within a dwelling unit to family members residing in the dwelling unit.

The provision of child care services for a fee, or other consideration, to no more than five children, by a family occupying a dwelling unit, provided that the use complies with the requirements of section B17A-228(c)(2)e,f.

Pursuant to N.J.S.A. 30:5B-18, a child being cared for under the following circumstances is not included in the number of children receiving child care services, provided that there shall be no more than three such children within either or both of the following categories:

[Amended 6-28-2022 by Ord. No. 2022-14]

The total area of all of the stories of all structures on the lot, measured from the outside faces of the exterior walls or from the exterior roof edges where the structure has no walls and including the following, although not by way of limitation: interior balconies and mezzanines, roofed and/or enclosed areas such as sheds, barns, garages, and carports.

Attic space in a single family or two family residence with a height of five feet or more measured from the finished floor to the roof rafter shall be counted as floor area except for that area that is up to one-third of the area of the floor directly below. Attic areas in a single family or two family residence with a height of less than five feet measured from finished floor to roof rafter shall not be counted as floor area.

If an interior space in a one or two family structure has a ceiling height of twelve feet or greater, the floor area of that space shall be counted twice for the purpose of floor area calculation. If an interior space in a one or two family structure has a sloped ceiling, only that portion of the floor having a ceiling height of twelve feet or greater shall be counted twice for the purpose of floor area calculation.

[Deleted by Ord. No. 2015-48 § 2]

The gross floor area of all buildings on a lot divided by the lot area.

A garage located in between the front of a structure and the street and which is accessible from a paved courtyard located at the interior of the lot.

An accessory building incidental to a house as defined herein, which accessory building is used for the off-street storage of motor vehicles belonging to the inhabitants of such house, and in which garage no business, service or occupation is conducted or rendered for profit except as permitted by section B17A-228(c)(6)a.

An attic with a floor area no greater than 50% of the floor below

The greatest vertical distance between the average level of finished grade or pre-construction grade, whichever is lower in elevation, along all the exterior walls of a building and each of the following:

An occupation customarily carried on in a dwelling unit by an occupant of the residence, which occupation is clearly an accessory use incidental to the residential use. A "home occupation" shall not include any occupation that gives external evidence of nonresidential use, nor shall it include a barbershop, beauty parlor, commercial caterer, commercial rental office, medical doctor or dentist, or studio where dancing, music or other personal instruction is offered to more than one pupil at one time or where concerts or recitals are held.

A dwelling in which more than 10 rooms are rented to boarders or lodgers, or any other building containing rooms or suites of rooms, located on common hallways, which are used, rented or hired out to be occupied or which are occupied for sleeping purposes primarily by transient guests.

A building containing both dwelling units and business uses which are permitted in the applicable district regulations.

A one-story freestanding structure not exceeding 250 square feet in floor area and 20 feet in height. Kiosks may contain retail stores, bakeries, and eating and drinking places and may not contain more than five counter seats for patrons to eat or drink inside the premises.

A single tract of land under single ownership or control, located within a single block which, at the time of filing for a building permit, is designated by the owner as a tract to be used, developed or built upon as a unit. Such lot may or may not coincide with the deed description thereof or the boundaries of the same as shown on a map thereof filed for record or otherwise, and it may be subsequently subdivided into two or more lots; provided, that all such lots conform to all the regulations of the district. A lot may be occupied by more than one principal building, except in the R1, R2, R3 and R4 zoning districts.

Any boundary of a lot, other than a street line.

The lot line generally opposite to the street line.

The measurement along a line drawn parallel to the street line, at the depth of the required front yard.

A lot at the junction of and abutting on two or more intersecting streets, where the interior angle of intersection does not exceed 135°. Any lot adjoining a curved street at a point where the street line describes an arc subtended by an angle of 135° or less shall be considered a corner lot.

The minimum distance from the street line of a lot to the rear lot line of such lot.

The ratio, the numerator of which is the area of lot coverage plus the area of all other impervious cover, and the denominator of which is the gross area of the lot.

For single- and two-family dwellings, the following shall be exempt from the calculation of impervious coverage (see Fig. 1):

Any lot which is not a corner lot or a through lot.

A lot which has two street lines and which is not a corner lot.

A "noncomplying" building is any lawful building which is a nonconforming structure and which does not comply with any one or more of the applicable district bulk regulations or off-street parking and loading requirements, either on November 19, 1968, or as a result of any subsequent amendment to this article.

A "nonconforming" use is any lawful use which is a nonconforming use, whether of a building or a tract of land, which does not conform to one or more of the applicable use regulations of the district in which it is located, either on November 19, 1968, or as a result of any subsequent amendment to this article.

A nursing home means any building or buildings which are used for the housing of patients who require continuous nursing home-level care or who are in need of assisted living services. It shall include a "nursing home" and/or "assisted living residence." For this purpose:

A nursing home means a facility which is licensed by the department of health, in accordance with N.J.A.C. 8:39, to provide health care under medical supervision and continuous nursing care for 24 or more consecutive hours to patients who do not require the degree of care and treatment which a hospital provides and who, because of their physical or mental condition, require continuous nursing home-level care.

An assisted living residence means a facility which is licensed by the department of health, in accordance with N.J.A.C. 8:36, to provide apartment-style housing and congregate dining and to assure that assisted living services are available when needed. "Assisted living services" means a coordinated array of supportive personal and health services, available 24 hours per day, to residents who have been assessed to need these services, including residents who require formal long-term care.

A structure containing parking spaces for vehicles, some or all of which shall be enclosed, and facilities incident thereto.

An accessory off-street space, open or enclosed and paved or surfaced, which is accessible and available at all hours when the building to which it is accessory is in use, for the parking of one passenger car.

Facilities serving and subordinate in area, extent and purpose to, and on the same lot as, a telecommunications tower or antenna location. Such facilities include, but are not limited to, transmission equipment, storage sheds, storage buildings, and security fencing.

Facilities for the provision of wireless communications services, including, but not limited to, antennas, antenna support structure, telecommunications towers, and related facilities other than PWTEFs.

The Township of Princeton and the Borough of Princeton, in the County of Mercer, and State of New Jersey.

A building owned or operated by the borough, Princeton Township, the county, the state or the United States of America.

The documents and information required to be supplied in connection with a proposal for the acquisition and relocation of a preservation structure as provided in section 393.3.

The land to which a preservation structure is proposed to be relocated.

(Reserved by Ord. No. 2014-44)

A living room or enclosed floor space within a dwelling unit, secondary residence, dormitory or boarding house, which is used or designed to be used for living, sleeping or eating purposes. A "habitable room" shall not include any of the following:

A dwelling occupied by one family, with three to 10 rooms rented for more than seven consecutive days to boarders or lodgers, in which there are provided services incidental to such use. The term shall include a boarding house or a furnished rooming house. A lodger or roomer may have privileges in the kitchen of the dwelling but shall not maintain cooking or food preparation facilities elsewhere, alone or in common with other roomers.

See "Accessory dwelling unit."

Any structure or part thereof, or device attached thereto or painted or represented thereon, which displays or includes any letter, word, model, banner, flag, pennant, insignia, device or representation used as or which is in the nature of, an announcement, direction or advertisement. For the purpose of this article, the word "sign" does not include the flag, pennant or insignia of any nation, group of nations, state, city or other political unit or any artistic expression, even if it relates to the character of the business being undertaken in the structure, provided that the artistic expression does not contain the name of the business or of a product or service sold by the business and, if it is proposed in a historic preservation district, receives approval by the historic preservation review committee.

Any covered area whether finished or not, with a clear headroom of five feet or more measured from the finished floor to the ceiling (defined as the bottom of the structural members of the floor or roof above). If the covered area also meets the definition of "basement," it shall not be considered a "story."

Any public street, place, square, lane or way with a minimum right-of-way of 25 feet set aside or used as a right-of-way for common street purposes.

The dividing line between a lot and a street. Where a proposed street widening is shown on the official map, the street line shall be the line of the proposed widening. Where no right-of-way width is shown on the official map, the street line shall be presumed to be 25 feet from the center line of the street as determined by the borough engineer.

Any change in any supporting member of a building.

A freestanding structure on which one or more antennas are located, including lattice towers, guyed towers, monopoles and similar structures.

Any vehicle mounted on wheels or on a truck body, movable either by its own power or by being drawn by another vehicle, which is initially designed or converted to be used for living or sleeping quarters. The term "trailer" shall include such vehicles if mounted on temporary or permanent foundations with the wheels removed.

Common open space that comprises an enclosed portion of the ground of a lot, which is available and accessible to all occupants of the buildings on the lot for purposes of active or passive outdoor recreation and:

The term employed to refer to:

Any personal wireless services as defined in the Federal Telecommunications Act of 1996 (FTA) which includes FCC licensed commercial wireless telecommunications services including cellular, personal communication services (PCS), specialized mobile radio (SMR), enhanced specialized mobile radio (ESMR), paging, and similar services that currently exist or that may in the future be developed. It does not include any amateur radio facility that is owned and operated by a federally-licensed amateur radio station operator or is used exclusively for receive only antennas, nor does it include non-cellular telephone service.

A portion of a lot extending open and unobstructed from ground level to the sky along a street line and from the street line for a depth set forth in the applicable district yard regulations.

The mean prevailing front yard setback for a block. (See section B17A-376.1)

A portion of a lot extending open and unobstructed from ground level to the sky, except for accessory buildings or uses explicitly permitted in a rear yard by this article, along a rear lot line and from the rear lot line for a depth set forth in the district yard regulations.

A portion of a lot between the front yard and the rear yard, extending open and unobstructed from ground level to the sky, except for accessory buildings or uses explicitly permitted in a side yard by this article, along any lot line other than a street line or rear lot line, and from such lot line for a width set forth in the applicable district yard regulations.