1. Planned residential districts are intended to establish residential areas and requirements and to incorporate by reference, planned residential developments which have been duly approved by the Township of Thornbury pursuant to Article 26 of this Chapter. Accordingly, the PRD-1 District provides for:

A. The establishment of single-family detached dwellings.

B. Recreation and open space.

C. Sewage and water facilities.

D. Conservation of creek valleys, steep slopes, and woodland areas.

E. Conservation and proper utilization of ground water supplies and control of surface water flooding.

2. In Planned Residential Development District - 1, the following regulations shall apply.

(Ord. 2-1976, 2/3/1976; as added by Ord. 4-1996, 3/6/1996, UT)

In Planned Residential District - 1, the tentative and final approval together with all requirements and regulations contained therein as approved pursuant to §27-2601 et seq., of this Chapter are incorporated herein as if fully set forth, and when not inconsistent with this Chapter, shall remain in full force and effect.

(Ord. 2-1976, 2/3/1976; as added by Ord. 4-1996, 3/6/1996, §II)

A.building may be erected, altered or used and a lot or premises may be used for any of the following purposes and for no other:

A. Single-family detached dwelling.

B. Sewage or water supply facility.

C. Community open space.

D. Accessory use on the same lot and customarily incidental to any of the foregoing permitted uses. The term "accessory use" shall not include a business or profession, and may include, but is not necessarily limited to:

(1) Private parking or garage space for private noncommercial vehicles.

(2) Private home swimming pool.

(3) Private home greenhouse or storage building.

(4) Private play equipment.

(5) No-impact home-based business. [Ord. 1-2003]

E. No use shall be permitted which is in violation of the prohibited uses and performance standards of §27-2107 of this Chapter.

(Ord. 2-1976, 2/3/1976; as added by Ord. 4-1996, 3/6/1996, §II; and as amended by Ord. 1-2003, 8/6/2003, §V)

1. Lot Area. Every lot shall have not less than 14,000 square feet.

2. Lot Width. Each lot width shall be not less than 65 feet at the building line with a minimum street frontage of 65 feet except on a cul-de-sac, which shall be 50 feet.

3. Lot Coverage. Not more than 30% of the area of each lot may be occupied by buildings or other impervious cover, except that any area devoted to a swimming pool construction, exclusive of surrounding paved areas, shall not be included in the 30%.

4. Front Yard. There shall be a front yard not less than 40 feet from the front building street line.

5. Side Yard. There shall be two side yards which shall not be less than 40 feet in aggregate width and neither of which shall be less than 15 feet.

6. Rear Yard. There shall be a rear yard of not less than 25 feet in depth.

7. Accessory Structures. For the purpose of this subsection, an accessory structure shall be placed at a minimum distance in accordance with the provisions of subsections .4, .5, and .6 hereof. If the accessory structure is located on the lot with its forward most portion located behind the line parallel to the street line and which touches the rear most portion of the main building, then it may be placed at minimum distance of 10 feet from rear property line and 10 feet from the side property lines.

8. Signs. As permitted in Article 20 of this Chapter and when allowed herein. (Ord. 2-1976, 2/3/1976; as added by Ord. 4-1996, 3/6/1996, §II)

No building shall exceed three stories or 35 feet in height. (Ord. 2-1976, 2/3/1976; as added by Ord. 4-1996, 3/6/1996, §II)

Off-street parking spaces with proper and safe access from a street shall be provided within a structure or in the open, to serve adequately the use of each lot within the district. The number of spaces to be provided and their location shall be as provided in Article 21 of this Chapter.

(Ord. 2-1976, 2/3/1976; as added by Ord. 4-1996, 3/6/1996, §II)

1. Planned Residential Development Districts are intended to establish residential areas and requirements and to incorporate by reference, planned residential developments which have been duly approved by the Township of Thornbury pursuant to Article 26 of this Chapter.

2. Accordingly, the PRD-2 District provides for:

A. The establishment of single-family detached and attached dwellings.

B. Recreation and open space.

C. Sewage and water facilities.

D. Conservation of creek valleys, steep slopes, and woodland areas.

E. Conservation and proper utilization of ground water supplies and control of surface water flooding.

3. In Planned Residential Development District-2, the following regulations shall apply:

(Ord. 2-1976, 2/3/1976; as added by Ord. 3-2001, 5/2/2001, §II)

In Planned Residential District-2, the tentative and final approval together with all requirements, waivers, and regulations contained therein as approved pursuant to Article 26 of this Chapter, are incorporated herein as if fully set forth, and when not inconsistent with this Chapter, shall remain in full force and effect.

(Ord. 2-1976, 2/3/1976; as added by Ord. 3-2001, 5/2/2001, §II)

A.building may be erected, altered, or used, and a lot or premises may be used for any of the following purposes and for no other:

A. Single-family detached and attached dwelling.

B. Sewage or water supply facility.

C. Community open space.

D. Accessory use on the same lot and customarily incidental to any of the foregoing permitted uses. The term "accessory use" shall not include a business or profession, and shall be limited to:

(1) Private parking.

(2) Garage space for private non-commercial vehicles, when such space is attached to the main dwelling.

(3) Private play equipment.

E. No use shall be permitted which is in violation of the prohibited uses and performance standards in §27-2107 of this Chapter.

(Ord. 2-1976, 2/3/1976; as added by Ord. 3-2001, 5/2/2001, §II)

1. Lot Area. Every lot shall have not less than 12,000 square feet.

2. Lot Width. Each lot width shall be not less than 105 feet at the building line.

3. Lot Coverage. Not more than 35% of the area of each lot shall be occupied by buildings or other impervious cover.

4. Front Yard. There shall be a front yard not less than 35 feet from the front building street line.

5. Side Yard. There shall be two side yards which shall not be less than 40 feet in aggregate width and neither of which shall be less than 10 feet in width.

6. Rear Yard. There shall be a rear yard of not less than 25 feet in depth.

7. Accessory Structures. For the purposes of this subsection, an accessory structure shall be placed at a minimum distance in accordance with the provisions of subsections .4, .5, .6 hereof. If the accessory structure is located on the lot with its forward-most portion located behind a line parallel to the street line and which touches the rear-most portion of the main building, then it may be placed at a minimum distance of 10 feet from rear property line and 10 feet from the side property lines.

8. Signs. As permitted in Article 20 of this Chapter and when allowed herein.

(Ord. 2-1976, 2/3/1976; as added by Ord. 3-2001, 5/2/2001, §II)

No building shall exceed three stories or 35 feet in height.

(Ord. 2-1976, 2/3/1976; as added by Ord. 3-2001, 5/2/2001, §II)

Off-street parking spaces with proper and safe access from a street shall be provided within a structure or in the open, to serve adequately the use of each lot within the district. The number of spaces to be provided and their location shall be as provided in Article 21.

(Ord. 2-1976, 2/3/1976, §504; as added by Ord. 3-2001, 5/2/2001, §II)

This R-3 Residential District is designed to encourage a variety of housing types not permitted elsewhere in the Township. The district is designed as a separate specific zoning district and is permitted when public water and sewer service is available. The use of this district must take into consideration both the opportunities and the constraints imposed by the existing natural features of the property.

(Ord. 2-1976, 2/3/1976; as added by Ord. 3-1997, 4/16/1997, §3)

1. Density. The maximum allowable average gross residential density shall be four units per acre.

2. Open Space. Not less than 20% of the total tract area shall be designated and devoted to open space. Not less than 10% of the total tract area shall be designated for active recreation. Active recreational use areas provided shall be reasonably accessible to the residents and shall be centrally located to the extent such central location is practical. No active recreational use shall be located in the buffer areas. [Ord. 5-1998]

3. Site Analysis. In order to determine which specific areas of the total site are best suited for development and which should be preserved in their natural space as open space, a thorough analysis of the physical and natural features of the site must be presented with the plan of development.

4. Public Water and Sewer. The applicant shall certify the proposed use of public water and public sewer for sewage disposal. Public water shall mean a certified regional water company providing water in the area. Sewage disposal shall be provided by an area sewer company such as an official municipal wastewater treatment plant.

5. Site Design.

A. All housing shall be designed with regard to the topography and natural features of the site.

B. All housing shall be situated so as to enhance privacy, ensure natural light for all principal rooms and take advantage of natural scenic views.

C. Housing and other facilities near the periphery of the development shall be designed to be harmonious with the neighboring area. The maximum height of any structure within this zone shall be limited to 35 feet. No single structure shall be less than 100 feet from the -tract boundary, except where the property line abuts the existing Township or State road. In such instances, no structure shall be less than 100 feet f'rom the right-of-way line of such road. These setback areas shall be buffered pursuant to this Chapter. No setback area shall be calculated as part of the active recreational use area.

D. There shall be no more than six single-family attached dwellings in a row and no such structure shall be within 50 feet of any other structure.

E. No more than 25% of the proposed dwelling units shall be single-family detached dwelling units.

F. A no-impact home-based business shall be permitted as an accessory use to a permitted residential use. [Ord. 1-2003]

6. General Street Design. Through streets shall be designed to be free from any driveway entrances upon the through street. All dwellings shall have vehicular access to a local or minor street. No access shall be permitted from a dwelling to a through street (collector or arterial). All dwelling units shall be designed and laid out on local streets or cul-de-sacs, where future extension is impractical, shall be limited to a maximum length of 700 feet plus twice the radius of the turnaround. The length of the cul-de-sac shall be measured from the last intersection on which two means of egress to collector or major streets can be effected. Cul-de-sac roads shall have a turning radius with a maximum radius of 50 feet of paved surface and 60 feet to the edge of the right-of-way. A cartway of no less than 28 feet shall be provided except where vehicle parking is to be provided on one side of the street, then a cartway of 32 feet shall be required. The layout of cul-de-sacs, driveways and street planning shall facilitate snow removal and storage by designating snow accumulation zones free of any obstructions.

7. Parking. There shall be designed no less than two and one-half parking spaces per dwelling unit, one of the two and one-half parking spaces per each dwelling unit shall be covered parking space, which may be in either an attached or detached garage. Parking spaces shall measure a minimum of 9 1/2 feet by 18 feet. All parking areas shall be arranged off of the through streets or collector streets of the development. No more than 15 spaces shall be permitted in a continuous row without being interrupted by approved landscaping of adequate width and density. All parking areas shall be paved with an asphalt or Portland cement paving. No offstreet parking shall be located within any of the required buffer areas. No recreational vehicles, boats, trailers or similar vehicles shall be stored by the residents in the uncovered parking areas.

(Ord. 2-1976, 2/3/1976; as added by Ord. 3-1997, 4/16/1997, §3; as amended by Ord. 5-1998, 7/1/1998, §1; and by Ord. 1-2003, 8/6/2003, §VI)