Unless otherwise expressly stated, the following terms shall, for the purposes of this code, have the meanings shown in this chapter.
Words stated in the present tense include the future; words stated in the masculine gender include the feminine and neuter; the singular number includes the plural and the plural, the singular.
Where terms are not defined in this code and are defined in the International Building Code, International Existing Building Code, International Fire Code, International Fuel Gas Code, International Mechanical Code, International Plumbing Code, International Residential Code, International Zoning Code or NFPA 70, such terms shall have the meanings ascribed to them as stated in those codes.
Exception: When used within this code, the terms unsafe and dangerous shall have only the meanings ascribed to them in this code and shall not have the meanings ascribed to them by the International Existing Building Code.
Where terms are not defined through the methods authorized by this section, such terms shall have ordinarily accepted meanings such as the context implies.
Whenever the words "dwelling unit," "dwelling," "premises," "building," "rooming house," "rooming unit," "house-keeping unit" or "story" are stated in this code, they shall be construed as though they were followed by the words "or any part thereof."
ANCHORED
Secured in a manner that provides positive connection.
APPROVED
Acceptable to the code official.
BASEMENT
That portion of a building that is partly or completely below grade.
BATHROOM
A room containing plumbing fixtures including a bathtub or shower.
BEDROOM
Any room or space used or intended to be used for sleeping purposes in either a dwelling or sleeping unit.
CODE OFFICIAL
The Code Enforcement Manager and Building code official for the Municipality of Norristown or their duly authorized representatives.
COMMERCIAL BUILDING
A building, structure, or facility that is not a residential building.
CONDEMN
To adjudge unfit for occupancy.
COST OF SUCH DEMOLITION OR EMERGENCY REPAIRS
The costs shall include the actual costs of the demolition or repair of the structure less revenues obtained if salvage was conducted prior to demolition or repair. Costs shall include, but not be limited to, expenses incurred or necessitated related to demolition or emergency repairs, such as asbestos survey and abatement if necessary; costs of inspectors, testing agencies or experts retained relative to the demolition or emergency repairs; costs of testing; surveys for other materials that are controlled or regulated from being dumped in a landfill; title searches; mailing(s); postings; recording; and attorney fees expended for recovering of the cost of emergency repairs or to obtain or enforce an order of demolition made by a code official, the governing body or board of appeals.
DETACHED
When a structural element is physically disconnected from another and that connection is necessary to provide a positive connection.
DETERIORATION
To weaken, disintegrate, corrode, rust or decay and lose effectiveness.
DWELLING UNIT
A single unit providing complete, independent living facilities for one or more persons, including permanent provisions for living, sleeping, eating, cooking and sanitation.
EASEMENT
That portion of land or property reserved for present or future use by a person or agency other than the legal fee owner(s) of the property. The easement shall be permitted to be for use under, on or above said lot or lots.
EMERGENCY ESCAPE AND RESCUE OPENING
An operable exterior window, door or other similar device that provides for a means of escape and access for rescue in the event of an emergency.
EQUIPMENT SUPPORT
Those structural members or assemblies of members or manufactured elements, including braces, frames, lugs, snuggers, hangers or saddles, that transmit gravity load, lateral load and operating load between the equipment and the structure.
EXTERIOR PROPERTY
The open space on the premises and on adjoining property under the control of owners or operators of such premises.
FAMILY
Any number of individuals living together on a nontransient basis as a single housekeeping unit and doing their cooking on the premises. The definition shall not apply to the occupants of a club, fraternity house, lodge or residential club. Notwithstanding the aforesaid definition, a family shall include any number of mentally or physically handicapped persons occupying a dwelling unit as a single, nonprofit housekeeping unit, if such occupants are handicapped persons as defined in Title VII of the Civil Rights Act of 1968, as amended by the Fair Housing Amendments Act of 1988. Such unrelated individuals shall have the right to occupy a dwelling unit in the same manner and to the same extent as any family unit as defined previously.
FIRE ESCAPE
A stairway located on the exterior of the structure that is constructed for the sole purpose of providing a path of egress travel for building occupants in the event of emergency.
GARBAGE
The animal or vegetable waste resulting from the handling, preparation, cooking and consumption of food.
GUARD
A building component or a system of building components located at or near the open sides of elevated walking surfaces that minimizes the possibility of a fall from the walking surface to a lower level.
HABITABLE SPACE
Space in a structure for living, sleeping, eating or cooking. Bathrooms, toilet rooms, closets, halls, storage or utility spaces, and similar areas are not considered habitable spaces.
HISTORIC BUILDING
Any building or structure that is one or more of the following:
1. 
Listed or certified as eligible for listing, by the State Historic Preservation Officer or the Keeper of the National Register of Historic Places, in the National Register of Historic Places.
2. 
Designated as historic under an applicable state or local law.
3. 
Certified as a contributing resource within a National Register or state or locally designated historic district.
HOOD SYSTEM
An air intake system used to capture by entrapment, impingement, adhesion, or similar means, grease, moisture, heat, and similar contaminants to transfer them out of the space. The system includes cooking equipment, filters, hoods, ducts, fans, fire extinguishing systems, and special effluent or energy control systems.
HOUSEKEEPING UNIT
A room or group of rooms forming a single habitable space equipped and intended to be used for living, sleeping, cooking and eating that does not contain, within such a unit, a toilet, lavatory and bathtub or shower.
IMMINENT DANGER
A condition that could cause serious or life-threatening injury or death at any time.
INFESTATION
The presence, within or contiguous to, a structure or premises of insects, rodents, vermin or other pests.
INOPERABLE MOTOR VEHICLE
A vehicle that cannot be driven upon the public streets for reason including but not limited to being unlicensed, wrecked, abandoned, in a state of disrepair, or incapable of being moved under its own power.
LABELED
Equipment, materials or products to which have been affixed a label, seal, symbol or other identifying mark of a nationally recognized testing laboratory, approved agency or other organization concerned with product evaluation that maintains periodic inspection of the production of the above-labeled items and whose labeling indicates either that the equipment, material or product meets identified standards or has been tested and found suitable for a specified purpose.
LET FOR OCCUPANCY or LET
To permit, provide or offer possession or occupancy of a dwelling, dwelling unit, rooming unit, building, premise or structure by a person who is or is not the legal owner of record thereof, pursuant to a written or unwritten lease, agreement or license, or pursuant to a recorded or unrecorded agreement of contract for the sale of land.
MULTIFAMILY DWELLING
A building containing three or more dwelling units. Units may be arranged entirely in vertical rows (like townhouses) and are generally located entirely above or below one another. Units may share outside access and/or internal hallways, lobbies and similar facilities. The dwelling units cannot be individually lotted, but instead share the lot or tract on which the building containing them is located. The development is usually under one operating unit, as a rental or condominium development. This dwelling type includes but is not limited to low-rise, mid-rise and high-rise apartments and multifamily conversions as defined below.
1. 
LOW-RISE APARTMENTAn apartment building not exceeding three stories and 36 feet in height, also known as a "garden apartment."
2. 
MID-RISE APARTMENTAn apartment building exceeding three stories and 36 feet in height but not exceeding six stories and 72 feet in height.
3. 
HIGH-RISE APARTMENTAn apartment building exceeding six stories and 72 feet in height but not exceeding 10 stories and 120 feet in height.
4. 
MULTIFAMILY CONVERSIONA multifamily dwelling, containing not more than four units, that results from the conversion of a single-family or two-family dwelling, also known as a "converted apartment building."
NEGLECT
The lack of proper maintenance for a building or structure.
NON-OWNER OCCUPIED
A property, building, or structure that is not occupied by the person(s) listed on the recorded deed.
OCCUPANCY
The purpose for which a building or portion thereof is utilized or occupied.
OCCUPANT
Any individual living or sleeping in a building or having possession of a space within a building.
OPENABLE AREA
That part of a window, skylight or door which is available for unobstructed ventilation and which opens directly to the outdoors.
OPERATOR
Any person who has charge, care or control of a structure or premises that is let or offered for occupancy.
OWNER
Any person, agent, operator, firm or corporation having legal or equitable interest in the property; or recorded in the official records of the state, county or municipality as holding title to the property; or otherwise having control of the property, including the guardian of the estate of any such person, and the executor or administrator of the estate of such person if ordered to take possession of real property by a court.
PERSON
An individual, corporation, partnership or any other group acting as a unit.
PERSON-IN-CHARGE
Any person who has charge, care, control or management of a non-owner occupied (rental) property and lives and/or has an office within 50 mile radius from the property.
PEST ELIMINATION
The control and elimination of insects, rodents or other pests by eliminating their harborage places; by removing or making inaccessible materials that serve as their food or water; by other approved pest elimination methods.
PREMISES
A lot, plot or parcel of land, easement or public way, including any structures thereon.
PUBLIC WAY
Any street, alley or other parcel of land that: is open to the outside air; leads to a street; has been deeded, dedicated or otherwise permanently appropriated to the public for public use; and has a clear width and height of not less than 10 feet (3048 mm).
RESIDENTIAL BUILDING
A detached one-family and/or two-family dwelling and/or townhouses which are not more than three stories above grade plane in height with a separate means of egress and their accessory structures.
ROOMING HOUSE
A building arranged or occupied for lodging, with or without meals, for compensation and not occupied as a one- or two-family dwelling.
ROOMING UNIT
Any room or group of rooms forming a single habitable unit occupied or intended to be occupied for sleeping or living, but not for cooking purposes.
RUBBISH
Combustible and noncombustible waste materials, except garbage; the term shall include the residue from the burning of wood, coal, coke and other combustible materials, paper, rags, cartons, boxes, wood, excelsior, rubber, leather, tree branches, yard trimmings, tin cans, metals, mineral matter, glass, crockery and dust and other similar materials.
SINGLE-FAMILY ATTACHED DWELLING UNIT
A dwelling unit having its own independent outside access, with no other dwelling units located directly and totally above or below it, and having party walls in common with at least one but not more than three adjacent similar dwelling units and located in a building comprised of at least three dwelling units. Each dwelling unit may be individually lotted or owned as a condominium. This dwelling type shall include but not be limited to dwelling units commonly known as "townhouses," "row houses," "triplexes," "quadruplexes," and "multiplexes."
SINGLE-FAMILY DETACHED DWELLING UNIT
A dwelling designed for and occupied exclusively as a residence for only one family and not attached to any other building or dwelling units.
SINGLE-FAMILY SEMIDETACHED DWELLING UNIT (TWIN)
A two-family building with dwelling units placed side-by-side and joined to each other by a vertical, common party wall but otherwise surrounded by yard areas. When lotted, each dwelling unit may be on a separate lot, with the common boundary between the two lots running along the common party wall. Separate ingress and egress is provided to each unit.
SLEEPING UNIT
A room or space in which people sleep, which can also include permanent provisions for living, eating and either sanitation or kitchen facilities, but not both. Such rooms and spaces that are also part of a dwelling unit are not sleeping units.
STRICT LIABILITY OFFENSE
An offense in which the prosecution in a legal proceeding is not required to prove criminal intent as a part of its case. It is enough to prove that the defendant either did an act which was prohibited, or failed to do an act which the defendant was legally required to do.
STRUCTURE
That which is built or constructed.
TENANT
A person, corporation, partnership or group, whether or not the legal owner of record, occupying a building or portion thereof as a unit.
TOILET ROOM
A room containing a water closet or urinal but not a bathtub or shower.
TOWNHOUSE (ROW HOUSE)
A single-family attached dwelling in a row of at least three units, with one dwelling unit from ground to roof, with individual outside access. Although these units are in rows, their design should deemphasize a lined-up appearance.
TWO-FAMILY BUILDING
A residential building containing two dwelling units and which is not attached to any other building. A two-family building counts as two dwelling units for density purposes.
TWO-FAMILY DETACHED (DUPLEX)
A two-family building with one dwelling unit placed above the other so that they share a common horizontal partition. When lotted, a duplex shall be entirely on one lot. Separate ingress and egress is provided to each unit.
ULTIMATE DEFORMATION
The deformation at which failure occurs and that shall be deemed to occur if the sustainable load reduces to 80 percent or less of the maximum strength.
VENTILATION
The natural or mechanical process of supplying conditioned or unconditioned air to, or removing such air from, any space.
WORKMANLIKE
Executed in a skilled manner; e.g., generally plumb, level, square, in line, undamaged and without marring adjacent work.
YARD
An open space on the same lot with a structure.