(1) In general. No lot, structure or use shall be created or developed in such a way that it would result in another lot, building or use not being able to meet the requirements of this chapter. This includes, but is not limited to, setback areas, non-impervious areas and off-street parking areas.
(2) Emergency access. All uses and structures shall have adequate provisions for access by emergency vehicles.
(3) Setbacks not applicable. See exemptions for certain structures in § 155.137 of this chapter.
(4) Accuracy. The applicant is responsible to make sure that all measurements submitted to the borough are accurate.
(B) Exceptions to minimum lot areas, lot widths and yards.
(1) Non-conforming lots. See § 155.155 of this chapter.
(2) Through lots. Any lot having frontage on two approximately parallel streets (not including an alley) shall provide a required front yard setback abutting each of these streets.
(3) Corner lots. Setback areas equal to the minimum front yard setback shall be provided along all portions of a corner lot abutting any public street, except where the applicant proves to the satisfaction of the Zoning Officer that the provision of a smaller setback of a different yard for a residential building will conform with the clearly prevailing yard pattern on existing developed adjoining lots fronting on the same street.
(4) Projections into required yards. Cornices, eaves, sills or other similar architectural features, exterior stairways, fire escapes or other required means of egress, rain leads or chimneys or other similar structures that do not include space usable by persons may extend or project into a required yard not more than three feet, except as may be required under a drainage or utility easement.
(5) Septic systems. Nothing in this chapter shall prevent the Municipal Sewage Enforcement Officer from requiring a minimum lot area larger than what is stated in this chapter to carry out state and borough sewage regulations.
(6) Previously approved setbacks. Where a residential subdivision was granted final approval prior to the adoption of this chapter, and the lawful setbacks in effect at such time are shown on the approved plans, those approved setbacks may apply in place of the setbacks in this chapter.
(7) Improved lots. In any residential zoning district where more than 75% of the residential block frontage has been improved prior to the effective date of this chapter with buildings having front yards of less depth than that required for the particular zoning district, then, the required front yard setback may be decreased for such block to not less than the minimum of the majority of such buildings. Once established, this minimum building setback shall be regarded as the front setback for that block and maintained as such.
(C) Sight distance at intersections.
(1) Sightlines at intersections.
(a) To ensure that traffic passing through an intersection or turning onto a street can safely see oncoming traffic.
(b) A triangular area as described in this section shall be graded and shall be kept free of sight obstructions between the ground level and a height of eight feet, including structures non-transparent fences, vegetation and signs (but not including sign posts of less than one feet in width or the trunks of deciduous trees).
(c) This sight distance triangle shall be shown on an official site plan and on any record plan that may be required. Such triangle shall serve as a permanent setback line for all such visual obstructions and shall be binding upon present and future owners of the land.
(d) If a driveway, accessway or street would enter onto a state street, the required sight distance shown on the official plan shall be the applicable minimum sight distance required by PennDOT.
(e) If minimum sight distance requirements would not be established by PennDOT, then the sight distance triangle shall be as follows: the triangle shall be measured based upon the intersecting point of the centerlines of the street receiving the traffic and the entering street, accessway or driveway. The sight distance triangle shall be established by a distance along the centerline of the receiving street (established below) and a distance (measured along the centerline of the entering street, accessway or driveway) 25 feet back from the edge of the existing right-of-way of the receiving street. The following distances shall be used along the centerline of the receiving street in each direction from the intersection to establish the sight distance triangle:
1. Three hundred fifty feet along the centerline of any arterial street;
2. Two hundred seventy-five feet along the centerline of any collector street; and
3. Two hundred feet along the centerline of any local street.
(f) These sight distance requirements shall apply to all intersections involving a public street and another street, accessway or driveway, except these requirements shall not apply to an individual driveway serving only one or two dwelling units that enters onto a local or collector street.
(g) A sight distance approach to an intersection triangle shall apply for each direction of approach.
(2) Buffer yards. Buffer yards and screening complying with the following standards shall be required under the following situations.
(a) Buffer yard width. When required, screening shall be required in the buffer yards with evergreen following situations:
(b) Location of buffer yards.
1. The buffer yard shall be measured from the district boundary line, future street right-of-way line or lot line, whichever is applicable.
2. Buffer yards shall not be within an future street right-of-way and shall be in addition to that right-of-way.
3. The buffer yard may include areas within a required front, side or rear yard or a paved area setback area provided the larger yard requirement shall apply in case of conflict.
4. A business use shall not be required to provide a buffer yard for an adjacent residential use or district if they are separated by an expressway.
(c) Characteristics of buffer yards.
1. The buffer yard shall be a landscaped area free of structures, dumpsters, commercial or industrial storage or display, manufacturing or processing activity, materials, loading and
unloading areas or vehicular parking. No new driveways or streets shall be permitted in the buffer yards, except at points of ingress or egress.
2. Maintenance: in all buffer yards, all areas not covered by trees and shrubs shall be well-maintained in an all-season natural ground cover (such as grass) and shall be kept free of debris and rubbish and shall not involve grass more than eight inches in height.
3. Preservation of existing vegetation or slopes: where a buffer yard would be required and an existing tree line, thick vegetation or steep slopes presently serves as a natural buffer, this buffer shall be maintained for the width required under § 155.152(D)(1) of this chapter. If this requirement is violated, the applicant shall be required to plant a buffer yard that will be closely similar in effect, density and character to the buffer yard that was removed.
4. If a substantial natural berm or slope or dense vegetation will be maintained and will be substantial enough to meet the buffer provisions of this section, or if topographic conditions or the creation of berming by the developer would clearly relieve the need and cause for screening, the Zoning Officer may waive the required evergreen screening.
5. Fence: any fence that may be constructed shall be on the inside of any required evergreen screening.
1. Each buffer yard shall include a planting screen of trees or shrubs extending the full length of the lot line. Required screening shall be of permitted types of evergreen shrubs and trees. In addition, planting screens shall include an average of one deciduous shade tree for every 50 feet of length of the buffer yard. Such shade trees may be the same as any street trees that may be required in that location by borough ordinances. Such shade trees shall meet the requirements for such trees listed in § 155.197 of this chapter.
2. Each planting screen shall be in accordance with the following requirements.
a. Required evergreen plant materials shall have a minimum height when planted of three feet.
b. Plant materials used in the planting screen shall be of such species, spacing and size as can reasonably be expected to produce, within five years, a solid year-round visual screen at least six feet in height.
c. The planting screen shall be permanently maintained by the landowner and any plant material that is not alive one year after planting shall be replaced.
d. The planting screen shall be so placed that at maturity it will be at least eight feet from any cartway and will not grow over an exterior lot line.
e. The planting screen shall be broken only at points of vehicular or pedestrian access and shall comply with the sight distance requirements of division (C) above.
f. Evergreen trees (as opposed to shrubs) shall be planted at off-sets to allow space for future growth, as seen in the sketch below.
1. Prior to the issuance of a permit under this chapter where a buffer yard would be required, and on any required subdivision or land development plan, the applicant shall submit plans showing:
a. The location and arrangement of each buffer yard;
b. The placement, general selection of species and initial size of all plant materials; and
c. The placement, size, materials and type of all fences to be placed in such buffer yard.
2. The Zoning Officer shall review such plans to determine that the plans are in conformance with the terms of this chapter.
(f) Species of plants. Evergreen trees and shrubs shall be of the following species, unless applicant proves to satisfaction of the Zoning Officer that a substitution would be appropriate. If more than 25 evergreen plants are proposed to meet the requirements of this section, a maximum of 50% of such plants shall be of one species.
(Ord. passed 2-4-1991, § 803)