A. 
A building permit shall be required prior to the construction of any building or structure regulated by this chapter, as amended, unless otherwise exempted herein. No building permit shall be issued by the Township until the applicant demonstrates compliance with Allegheny Township Ordinance 21-2000[1] and the Township Zoning Officer shall have reviewed the application for building permit and conducted such inspections as may be necessary to ensure that the application also demonstrates compliance with this chapter, as amended.
[1]
Editor's Note: Ordinance No. 21-2000 was superseded by Ord. No. 9-2004. See Ch. 89, Construction Codes, Uniform.
B. 
A building permit shall be required for a minor residential addition. Accessory structures that do not exceed 1,000 square feet shall not require building permits but shall require a zoning compliance permit. All fences, except those located in an R2 Zoning District, shall require a zoning compliance permit.
C. 
A late filing fee, as set by current resolution, over and above the total cost of the building permit shall be imposed against the applicant in the event:
(1) 
The applicant attempts to acquire a building permit after construction has begun on the subject parcel; and
(2) 
The Zoning Officer of Allegheny Township finds that a property owner completed construction without applying for and acquiring a proper building permit.
A map entitled "Allegheny Township Zoning Map" is hereby adopted as part of this chapter. The Zoning Map shall be kept on file available for examination at the office of the Township Manager. The map shall be signed and attested by the Township Manager and shall bear the seal of the Township. As soon as is reasonably practical after said adoption, all amendments affecting district boundaries shall be noted on the map by the Township Engineer, including date of adoption, and shall be attested to by the Township Manager.
The Township is divided into the districts stated in this chapter as shown by the district boundaries on the Zoning Map. The districts are:
R1
Single-Family Residential District
R2
Agricultural/Residential District
R3
General Residential District
C1
Planned Shopping Center District
C2
Neighborhood Business District
C3
Highway Commercial District
I1
Light Industrial District
I2
Manufacturing District
RC
Riverfront Conservation District
TC
Town Center
District boundaries shown within the lines of roads, streams and transportation rights-of-way shall be deemed to follow the center lines, except when said boundary is defined by courses and distances. Such courses and distances shall govern. The vacation of roads shall not affect the location of such district boundaries. When the Zoning Officer cannot definitely determine the location of a district boundary by such center lines, by scale or dimension stated on the Zoning Map or by the fact that it clearly coincides with a property line, he shall refuse action and the Zoning Hearing Board, upon appeal, shall interpret the location of the district boundary with reference to the scale of the Zoning Map and the purposes set forth in all relevant provisions of this chapter.
These general regulations shall apply in all zoning districts:
A. 
In the R1, R2 and R3 Districts, any use not specifically listed in the district as a permitted use, conditional use or use by special exception shall not be authorized in that district. In the C1, C2, C3, I1, I2 and RC Districts, any use not specifically listed in the district as a permitted use, conditional use or use by special exception shall not be authorized in that district unless the Zoning Hearing Board, in its sole discretion, grants such use as a use by special exception after determining that the proposed use meets the applicable express standards and criteria of § 250-110A(42) of this chapter for comparable uses not specifically listed.
B. 
In the case of a land development, as defined by this chapter, approval of a land development plan, as herein defined by the Board of Supervisors in accordance with the requirements of the Township Subdivision and Land Development Ordinance[1] shall be a prerequisite to obtaining the permits required by Article XXI of this chapter.
[1]
Editor's Note: See Ch. 223, Subdivision and Land Development.
C. 
Accessory structures which are customarily accessory to principal structures or uses authorized as uses by special exception shall be permitted as accessory uses by right.
D. 
On farms, principal farm buildings and structures may occupy the same lot as a single-family dwelling; however, three or more single-family dwellings shall not occupy the same lot.
E. 
Except as noted in Subsection C, in the R1 and R2 Districts, a single-family dwelling shall be the only principal structure on the lot. In the R3 District, only one single-family dwelling or one two-family dwelling shall be permitted on the lot. When authorized as a conditional use in the R3 District, two or more townhouses or garden apartment buildings may occupy the same lot. When authorized as a conditional use in the R2 or R3 District, a conversion apartment in an accessory structure may occupy the same lot as the principal structure containing an existing single-family dwelling or two-family dwelling.
F. 
In all districts, accessory structures may be located on the same lot with the principal structure to which they are accessory or on a lot which is immediately adjacent to the lot on which the principal structure is located.
G. 
In the C1, C2, C3, I1 and I2 Districts, several authorized uses may occupy the same lot or structure, provided that all applicable requirements for each of the uses can be met on the lot.
H. 
In all districts, the minimum road frontage, as defined by this chapter, for any lot which fronts on any state, county or Township street shall be 50 feet, except as noted in Article XIII.
I. 
Group homes shall be allowed as a use by right in all zoning districts that allow single-family homes.