[1983 Code]
Because each new subdivision accepted by the Village becomes a permanent unit in the basic physical structure of the future community, and to which the future community will, of necessity, be forced to adhere, all subdivisions hereafter planned within the incorporated limits of the Village, and within the unincorporated area lying 1 1/2 miles beyond, shall, in all respects, be in full compliance with the regulations contained in this Title. These regulations are designed to provide for the orderly and harmonious development of the Village, for the coordination of streets within new subdivisions with other existing or planned streets, to secure a uniform system of utilities and services for the Village.
[1983 Code]
A. 
The language set forth in the text of this Title shall be interpreted in accordance with the following rules of construction:
1. 
Whenever a word or term defined hereinafter appears in the text of this Title, its meaning shall be construed as set forth in the definition herein, and any word appearing in parenthesis directly after the word herein defined shall be construed in the same sense as that word.
2. 
All measured distance expressed in feet shall be to the nearest integral foot; if a fraction is 1/2 foot or more, the integral foot next above shall be taken.
B. 
Terms used in this Title shall have the following meanings:
ALLEY
A public right of way with a width not exceeding 22 feet, which affords a secondary means of access to abutting property.
BUILDING SETBACK LINE
A line or lines within a lot or other parcel of land so designated on the preliminary plan and final plat between which and the adjacent street or streets, the erection of an enclosed structure is prohibited.
CUL-DE-SAC
A minor street having one open end and being permanently terminated at the other by a vehicular turn-around.
EASEMENT
A grant by a property owner of the specific use of a strip of land by others.
FENCE STRIP
A one foot strip of dedicated land for the purpose of restricting access.
FINAL PLAT
A map or plan of a subdivision or other parcel of land intended as a unit for the purpose, whether immediate or future, of transfer of ownership or for building development.
LOT, BUTT
A lot at the end of a block and located between two corner lots.
LOT, DOUBLE FRONTAGE
Any lot having frontage on each of two public street rights of way generally paralleling the property.
OFFICIAL PLAN
The composite of the functional and geographic elements of the Village Comprehensive Plan, or any segment thereof in the form of plans, maps, charts and textual material, as adopted by the Village.
OWNER
Any individual, firm, association, partnership, corporation, trust or any other legal entity having sufficient proprietary interest in the land sought to be subdivided to commence and maintain proceedings to subdivide the same under this chapter.
PARKWAY STRIP
A strip of land between the roadway and the sidewalk or sidewalk site.
PEDESTRIAN WAY (CROSSWALK)
A public right of way across a block or providing access within a block to be used primarily by pedestrians.
PLAN COMMISSION
The Village of Thornton Plan Commission.
PLANTING STRIP
A dedicated, nonaccess strip of land planted with trees or shrubs for screening purposes.
PRELIMINARY PLAN
A tentative map or plan of a proposed subdivision as described in § 12-3-1B of this Title.
PRINCIPAL STRUCTURE
Any dwelling, commercial or industrial building, excluding garage, porch, carport, fence, storage shed or other such accessory structures. The definition shall not refer to expansion or repair of any dwelling, commercial or industrial building.
PROTECTIVE COVENANTS
Contracts entered into between private parties, and constituting a restriction on the use of all private property within a subdivision for the benefit of property owners; and, providing mutual protection against undesirable aspects of development which would tend to impair stability of values.
PUBLIC IMPROVEMENTS
Any sanitary sewer, storm sewer, drainage ditch, water main, roadway, parkway strip, sidewalk, planting strip, crosswalkway, off-street parking areas or other facility for which the Village may ultimately assume the responsibility for maintenance and operation.
SIDEWALK
That portion of a street or pedestrian way, paved or otherwise surfaced, intended for pedestrian use only.
SPECIFICATIONS
Public improvement construction standards as adopted by the Board of Trustees.
STREET (AVENUE, ROAD, BOULEVARD, LANE)
A public right of way which affords primary means of access by pedestrians and vehicles to abutting properties.
STREET WIDTH
The shortest distance between lines delineating the public right of way of a street.
STREET, ARTERIAL (THOROUGHFARE, MAJOR STREET, HIGHWAY)
A public right of way with the highest degree of traffic continuity and serving as a major traffic-way for fast or heavy traffic between the various districts of the Village and environs, as shown on the Official Plan.
STREET, COLLECTOR
A street of considerable continuity which carries traffic from minor streets to an arterial street, including the principal entrance streets of residence development, and the principal circulating streets within such a development.
STREET, HALF
A street bordering one or more property lines of a tract of land in which the developer has dedicated part of the ultimate right of way width in accordance with the requirements as set forth in Chapter 12-4 of this Title.
STREET, MARGINAL ACCESS
A minor street which is parallel and adjacent to or in the immediate vicinity of an arterial street, the purpose of which is to relieve such thoroughfare from the local service of abutting properties.
STREET, MINOR
A street of limited continuity used primarily for access to abutting properties and local needs of a neighborhood.
SUBDIVIDER
Any person commencing proceedings under this chapter for himself or for another.
SUBDIVISION
The division of any tract or parcel of land into two or more lots or other divisions of land for the purpose of transfer of ownership or for building development, whether immediate or future. Also, application for permit to construct one or more principal structures on a parcel or tract of land where one or more principal structures already exist shall be construed as a building development, envisioning future transfers of ownership, and shall be regarded as a subdivision. For the purpose of administration of these regulations, a parcel or tract of land shall be deemed to have the boundaries and dimensions given in the current maps of record of Cook County. The definition of subdivision includes resubdivision, and where appropriate to the context, both shall relate to the process of subdividing or to the land subdivided. However, the following situations shall not be deemed a subdivision according to these regulations:
1. 
The resubdivision of a lot recorded prior to February 2, 1960, and improved with a principal structure; provided, however, that such procedure shall produce no more than two lots, one of which contains the aforementioned principal structure, each of which are of legal size in accordance with appropriate Village ordinances, and both of which contain the required streets and easements for utilities; and, provided further, that upon application for a building permit for a vacant lot, a certified plat of survey must be provided showing the division of the lots involved, the dimension of said lots and the street and utility easements; or
2. 
The division of any parcel or tract of land by the installation of one or more public improvements which do not involve any change in street lines or public easements.
SUBDIVISION DESIGN STANDARDS
The basic land planning principles as detailed by Chapter 12-4 of this Title to be used as guides in the preparation of preliminary plans.
[1983 Code]
An occupancy permit, such permit to be without charge, shall not be granted by any governing official for the use of any structure within a subdivision approved for platting or replatting until required utility facilities have been installed and made ready to service the property; and, not until roadways providing access to the subject lot or lots have been constructed or are in the course of construction and are suitable for vehicular traffic.
[1983 Code]
The Plan Commission may recommend variations from these requirements in specific cases which, in its opinion, do not affect the general plan or the intent of this Title. Such recommendations shall be communicated to the Board of Trustees or governing County authorities in writing, substantiating the recommended variation. The Board of Trustees may approve variations from these requirements in specific cases which, in its opinion, do not adversely affect the general plan or intent of this Title.
[1983 Code]
A. 
For the purpose of meeting reasonable requirements for public grounds to serve any proposed subdivision and to facilitate the establishment and maintenance of community facilities conveniently located near the lots in the proposed subdivision, the owner or subdivider shall designate an amount of land in the proposed subdivision equal to 5% of the gross area included in the subdivision to be reserved on the final plat. The location of land reserved on the final plat shall be approved by the Plan Commission. The reservation required herein shall be for an initial period of three years from the date of recording of the final plat. If the land so reserved has not been cleared by condemnation or purchase by any local governmental authority at the end of the three-year term, the reservation shall be extinguished; provided, however, that any local governmental authority desiring or requiring additional time in which to effect ultimate ownership of the land so reserved, may extend the reservation period two years by payment of an earnest money deposit to the owner or subdivider in the amount of 5% of the reasonable market value of such property.
B. 
All such land conveyed or reserved shall be of sufficient size and character to meet the minimum frontage and area requirements for lots under the zoning regulations of the Village and shall otherwise be suitable for the purpose intended.