The CD-1 Conservation District and CD-2 Conservation District are hereby established in order to protect environmentally sensitive areas of land while providing for certain uses which, due to their nature can be introduced without significant intrusion on the environment. The CD-1 Zoning District shall include land exhibiting steep slopes with mature stands of trees. The CD-2 Zoning District shall include land in close proximity to natural watercourses.
A lot or parcel may be used and a building or structure may be erected and used for any of the following purposes:
A. 
Principal uses, CD-1 District:
(1) 
Municipal parks.
(2) 
Public buildings.
(3) 
Single-family detached dwellings.
(4) 
Agricultural operations. (See § 455-15.10.)
(5) 
Forestry.
B. 
Principal uses, CD-2 District:
(1) 
Municipal parks.
(2) 
Public buildings.
(3) 
Marina, noncommercial.
(4) 
Single-family detached dwellings.
(5) 
Agricultural operations. (See § 455-15.10.)
(6) 
Forestry.
C. 
Accessory uses:
(1) 
Private garages.
(2) 
Garden or storage sheds and shelters.
(3) 
Essential services as defined.
(4) 
Satellite dishes, dish and radio antennas. (See § 455-15.31.)
(5) 
Swimming pools.
(6) 
Signs. (See Article XVI.)
(7) 
Fences, walls and retaining walls. (See § 455-15.12.)
(8) 
No-impact home-based business. (See § 455-15.22.)
(9) 
Amateur radio communication towers. (By special exception; see § 455-15.40.)
(10) 
Solar energy facility. (See § 455-15.36.)
(11) 
Geothermal energy facility. (See § 455-15.39.)
(a) 
Geothermal energy facilities shall meet the accessory structure setbacks that may apply in the zoning district within which the facility is constructed, and where no such setback is specified, the facility shall be no closer than 10 feet from any property line.
(12) 
Wind energy facility. (See § 455-15.37.)
(13) 
Small wind energy facility. (See § 455-15.38.)
(14) 
Keeping of domesticated chickens. (See § 455-15.43.)
[Added 6-13-2023 by Ord. No. 1411]
A lot or parcel may be used and a building or structure may be erected and used subject to the granting of a conditional use pursuant to the procedures established by this chapter.
A. 
Day-care home as defined.
B. 
Schools.
C. 
Parks (public or noncommercial recreation), as defined.
D. 
Public utility facilities.
E. 
Cemeteries and mausoleums, as defined.
F. 
Fire and emergency medical equipment facilities.
G. 
Geothermal energy facility. (See § 455-15.39.)
H. 
Solar energy facility. (See § 455-15.36.)
I. 
Wind energy facility. (See § 455-15.37.)
A lot or parcel may be used and a building or structure may be erected and used subject to the granting of a conditional use pursuant to the provisions of Article XIII, Riverfront Unit Developments.
A. 
Commercial marina.
B. 
Marina complex.
C. 
Parks (public or noncommercial recreation).
D. 
Geothermal energy facility. (See § 455-15.39.)
E. 
Solar energy facility. (See § 455-15.36.)
F. 
Wind energy facility. (See § 455-15.37.)
A lot or parcel may be used and a building or structure may be erected and used subject to the granting of tentative and final approval of a planned development pursuant to the procedures established by this chapter.
A. 
Riverfront planned unit development. (See Article XIII.)
The minimum lot areas, minimum lot width, minimum front yard, minimum width of each side yard and the maximum height for permitted principal uses shall be as follows:
A. 
Minimum lot area: 80,000 square feet.
B. 
Minimum lot width: 200 feet.
C. 
Minimum depth front yard: 75 feet.
D. 
Minimum depth rear yard: 75 feet.
E. 
Minimum width side yard: 20 feet.
(1) 
Rear and side yards shall be a minimum of 100 feet where a perimeter lot abuts a residential district in O'Hara Township or Fox Chapel Borough. A roadway may be included in this 100-foot setback. A minimum twenty-foot side and rear yard shall be provided on interior lots.
(2) 
A special exception to encroach into the front yard setback may be granted by the Zoning Hearing Board pursuant to § 455-20.8 if a development is restricted by steep slopes.
F. 
Maximum height of structure: 30 feet.
G. 
Bulk: maximum building coverage: 33 1/3%.
H. 
Permitted accessory structures shall be located no closer than 20 feet to the side or rear property line.
I. 
Conditional uses in the CD-2 Conservation District shall be situated on lots in compliance with the minimum area, dimensions and setbacks established for permitted uses.
A. 
All permitted, conditional and accessory uses shall comply with the performance standard provisions of Article XVIII applicable to that use.
B. 
A traffic study shall be required for all nonresidential uses or developments which generate 50 or more a.m. or p.m. peak-hour trips and for all residential uses or developments which generate 100 or more average weekday vehicle trip ends, in accordance with § 455-19.2.
A zoning/building permit shall be required prior to the erection, construction or alteration of any structure proposed in relation to those uses enumerated in this article.