[Amended 11-26-1990 by Ord. No. 218; 6-22-1998 by Ord. No. 289]
In expansion of the legislative intent contained in Article I, § 350-4, of this chapter, and the community development objectives contained in Article I, § 350-5, of this chapter, it hereby is declared to be the intent of this article:
A. 
To preserve open land, including those areas with unique and sensitive natural features such as steep slopes, floodplains and wetlands by restricting development therein.
B. 
To preserve scenic views and elements of the Township rural character and to minimize perceived density by minimizing views of new development from existing roads.
C. 
To provide design flexibility in the siting of homes and infrastructure.
D. 
To implement the goals of the Upper Pottsgrove Township Comprehensive Plan and Parks, Recreation and Open Space Plan.
E. 
To reduce erosion and sedimentation by the retention of existing vegetation and minimization of development on steep slopes.
F. 
To encourage the preservation and improvement of habitat for various forms of wildlife.
G. 
To provide for preservation and maintenance of open land within the Township to achieve the above goals and for active or passive recreational use by residents.
H. 
To provide for a diversity of lot sizes and housing choices to accommodate a variety of age and income groups and residential preferences to maintain a diverse Township population.
[Amended 9-27-1999 by Ord. No. 300; 7-10-2000 by Ord. No. 307; 9-8-2003 by Ord. No. 353; 3-28-2005 by Ord. No. 379; 4-18-2011 by Ord. No. 446; 5-20-2019 by Ord. No. 504]
In an R-1 Residential District a building or structure may be erected, altered or used and a lot or premises may be used or occupied for any of the following reasons:
A. 
Neighborhood lotting. As a permitted use on lots subdivided from tracts of five acres or more, when said tracts are contained entirely within the sewer service area as determined by the Township's Act 537 Plan, existing as of the date of adoption of this chapter, when done as any neighborhood lotting as outlined in this article. Any residential development proposed under neighborhood lotting shall have a minimum of five building lots.
B. 
Standard lotting.
(1) 
As a permitted use on lots subdivided from tracts less than five acres in size or on a lot existing as of the date of adoption of this chapter, when done in compliance with the standards of §§ 350-67, 350-70, 350-71, "standard lotting," and § 350-73A of the R-1 District; such lots do not need to comply with any other requirements of the R-1 District.
(2) 
As permitted on lots in excess of five acres so long as the lots can be created through the minor subdivision process pursuant to § 310-10. Such lots to be created through the minor subdivision process must satisfy all of the following conditions:
(a) 
Contains four lots or less.
(b) 
Has not been part of a subdivision submitted within the past three years.
(c) 
Presently fronts on a physically improved street that is legally open to the public.
(d) 
Will not involve the construction of any new street or road, the extension of municipal facilities or the creation of any other public improvements.
(e) 
Requires a variance(s) for no more than one of the proposed lots on which new construction will occur or may occur in the future.
(f) 
Is in general conformance with the Township Comprehensive Plan and other plans.
(3) 
As a conditional use on lots subdivided from tracts of five acres or more, existing as of the original date of adopting this chapter when done in compliance with the standards of §§ 350-67, 350-70, and 350-71 (standard lotting) and § 350-73A, with all conditional use standards in § 350-74 of this article.
The initial formal application for any subdivision in the R-1 District shall include an inventory and analysis of the site as specified in Article III, § 310-7, of Chapter 310, Subdivision and Land Development. These site elements shall be inventoried and mapped in sufficient detail to allow evaluation of the plan relative to the intent of this district. The Board of Commissioners may reduce the elements to be shown on the site inventory and analysis if warranted by site conditions and the limited size of the tract.
The following standards apply to all residential development proposed under § 350-66A(1), Neighborhood lotting, herein:
A. 
All lots shall be grouped into neighborhoods which shall contain no more than 25 lots, which shall be surrounded by open land, subject to the provisions of Subsection E. When a development has more than one neighborhood, each shall contain no fewer than five and no more than 25 lots surrounded by open land.
B. 
The maximum number of lots in a neighborhood may be increased and neighborhoods may be assembled into larger groupings with the recommendation of the Planning Commission and approval of the Board of Commissioners. However, the applicant must demonstrate that such an alternative plan is more appropriate for the tract in question and will meet both the general intent and design standards of this article, rather than being intended solely for economic savings.
C. 
Neighborhoods are defined by the outer perimeter of contiguous lotted areas or abutting roads and may contain lots, roads and neighborhood open space.
D. 
A plan may contain one or more neighborhoods.
E. 
The outer boundaries of each neighborhood shall meet the neighborhood setback requirements specified in § 350-71C, herein, except that a maximum of 25% of the lots in a proposed development may extend to the tract boundary or may not directly face open space as required in Subsections A and J. This percentage may be increased to a maximum of 35% by conditional use, subject to the provisions specified in § 350-74B.
F. 
Neighborhoods shall be located on areas of the tract which are relatively free of sensitive environmental features. Disturbance of woodlands, hedgerows, mature trees or other significant vegetation shall be minimized. At a minimum, neighborhoods shall not encroach upon:
(1) 
Floodplain or wetlands.
(2) 
Steep slope areas.
(3) 
Lands designated a vulnerable resource or conservation priority in the Township Comprehensive Plan, Open Space and Recreation Plan or Official Map.
G. 
Neighborhoods shall be defined and separated by open land in order to provide direct access to open land and privacy to individual yard areas. Neighborhoods may be separated by roads if the road right-of-way is designed as a parkway and meets the setback requirements in § 350-71C.
H. 
Views of neighborhoods from exterior roads shall be minimized by the use of changes in topography, existing vegetation or additional landscaping beyond the minimum required by Article IV, § 310-37, of Chapter 310, Subdivision and Land Development.
I. 
All lots in a neighborhood shall have access from interior roads, rather than roads exterior to the tract.
J. 
Lots in a neighborhood shall have the full length of at least one side adjacent to neighborhood open space or other open land (directly or across a road). This open space shall be at least 30 feet in depth; provided, however, up to 25% of the lots may be adjacent to one another or not have direct access to open space. This may be increased to 35% by conditional use, subject to the provisions specified in § 350-74C.
K. 
Neighborhood open space standards. A neighborhood with more than 10 residential lots must provide neighborhood open space which shall:
(1) 
Be central to the neighborhood it serves. Open land used to separate neighborhoods may not be counted as neighborhood open space.
(2) 
Count as part of the minimum 60% open land requirement.
(3) 
Be provided at the rate of 1,000 square feet per lot in the neighborhood it serves.
(4) 
Provide a minimum of 100 feet of road frontage and a minimum average width of 30 feet in the neighborhood it serves.
(5) 
Be permitted to contain stormwater detention basins or parking areas, but these shall not be included in the required 1,000 square feet per lot.
(6) 
Take the form of a village green, parkway or cul-de-sac island in compliance with the following standards:
(a) 
Village green. Each village green shall be at least 10,000 square feet in size, shall be surrounded along at least 1/2 of its perimeter by roads and shall be configured so that a circle with a radius of 50 feet can fit within the confines of the green.
(b) 
Parkway. Each parkway shall have a minimum average width of 35 feet, shall have a length of at least 150 feet and shall be surrounded by streets on all sides.
(c) 
Cul-de-sac island. Each cul-de-sac island shall be located in the bulb of a cul-de-sac, shall have a radius of at least 50 feet and shall be surrounded by streets on all sides.
All residential developments developed under § 350-66A(1), Neighborhood lotting, are required to provide 60% of each tract as common open land in compliance with the following standards:
A. 
The following uses are permitted in open land areas:
(1) 
Conservation of open land in its natural state (for example, woodland, fallow field or managed meadow).
(2) 
Agricultural uses, including raising of crops or livestock and farm buildings.
(3) 
Neighborhood open space as specified in § 350-68.
(4) 
Passive recreation, including, but not limited to, trails, picnic areas, community gardens and lawn areas.
(5) 
Active recreation areas intended to serve one or more neighborhoods, such as playfields, playgrounds and courts, meeting the setback requirements in § 350-71B. Golf courses may be permitted, but shall not include driving ranges or miniature golf.
(6) 
Water supply and sewage disposal systems for neighborhoods, the entire development or for individual lots.
(7) 
Pasture for horses (at a rate not exceeding one horse per two acres).
(8) 
Easements for drainage, access, sewer or water lines or other public purposes.
(9) 
Stormwater management facilities for the proposed development, or for a larger area in compliance with a watershed stormwater management plan (adopted in accord with Act 167, the Storm Water Management Act of 1978[1]).
[1]
Editor's Note: See 32 P.S. § 680.1 et seq.
(10) 
Parking areas of 10 or fewer spaces where necessary to serve active recreation facilities.
(11) 
Aboveground utility and road rights-of-way, except that their land areas shall not count toward the required minimum 60% total open land requirement.
(12) 
A single-estate lot, in compliance with the following standards:
(a) 
A minimum lot size of two acres (see § 350-71B), of which a maximum of one acre may be developed with a single-family detached dwelling and customary accessory uses. A maximum of 50% of the undeveloped portion of the estate lot may be used to meet the 60% open land requirement. This maximum may be increased to 100% by conditional use subject to condition specified in § 350-74C.
(b) 
The one acre of the estate lot that may be developed shall include one single contiguous area of the site not left in its natural state or used for agricultural purposes, including all dwellings, accessory buildings and structures and paved areas.
(c) 
The developed area of the estate lot shall meet the neighborhood setback standards listed in § 350-71C, with the exception of § 350-71C(1)(d) and (e).
(d) 
Estate lots shall be restricted by a restrictive covenant against further subdivision.
(e) 
Dwellings on estate lots shall be counted toward the maximum density permitted on a tract.
(f) 
Dwellings on estate lots shall be sited according to the same principles as neighborhoods, as per § 350-68, Neighborhood design standards, except that the Board of Commissioners may reduce or eliminate this requirement for existing dwellings.
B. 
Open land areas shall be located and designed to:
(1) 
Protect site features identified in the inventory and analysis as having particular value in compliance with the intent of this article.
(2) 
Comply conceptually with the recommendations of the Township's Parks, Recreation and Open Space Plan and/or Comprehensive Plan where specified.
(3) 
Maximize common boundaries with open land on adjacent tracts, as shown in the Comprehensive Plan or as otherwise required by the Board of Commissioners in the interest of good planning and design.
C. 
Safe and convenient pedestrian and maintenance access shall be provided to open land areas that are not in estate lots or used for agricultural purposes.
(1) 
Each neighborhood shall provide one centrally located access point per 25 lots, a minimum of 75 feet wide.
(2) 
Access to open land used for agriculture may be appropriately restricted for public safety and to prevent interference with agricultural operations.
(3) 
Public access to estate lots is not required.
D. 
The following are prohibited in open land areas:
(1) 
Use of motor vehicles except within approved driveways and parking areas as permitted in Subsection A(10) above. Maintenance, law enforcement, emergency and farm vehicles are permitted, as needed.
(2) 
Cutting of healthy trees, regrading, topsoil removal, altering, diverting or modifying watercourses or bodies, except in compliance with a land management plan for the tract in question conforming to customary and accepted standards of forestry, erosion control and engineering.
E. 
Natural features, generally, shall be maintained in their natural condition, but may be modified to improve their appearance, functioning or overall condition, as recommended by experts in the particular area being modified. Permitted modifications may include:
(1) 
Reforestation.
(2) 
Woodland management.
(3) 
Meadow management.
(4) 
Buffer area landscaping.
(5) 
Streambank protection.
(6) 
Wetlands management.
F. 
Applicants providing open space in conformance with the standards of this section shall be exempt from additional open space or fee in lieu of requirements as specified in § 310-38 of Chapter 310, Subdivision and Land Development.
Because the development of standard one acre lots does not provide design flexibility to preserve existing natural features (as in § 350-68, Neighborhood design standards, and § 350-71C, Neighborhood setbacks), standard lotting shall be based on the application of environmental adjustment factors, as described below:
A. 
Environmental adjustment factors. Except as may be provided for elsewhere in this article, the following environmental adjustment factors shall be used to determine developable lot area for standard lotting in the R-1 District. Each natural feature in the following figure shall be mapped for each proposed lot and deducted in part or wholly from the total lot area based on the percentages shown on the chart and in compliance with the requirements in Subsection B, below:
Natural Feature
On-Site Sewer and Water
Public Water Only
Public Sewer Only
Public Water and Sewer
Soils:
A. Seasonal high water table* less than 18 inches
.66
.66
0.00
0.00
18 inches to 36 inches
.33
.33
0.00
0.00
B. Depth to bedrock* less than 42 inches
.33
.33
0.00
0.00
Diabase**
.66
0.00
.66
0.00
Water bodies
1.00
1.00
1.00
1.00
Watercourses
1.00
1.00
1.00
1.00
Floodplain
1.00
1.00
1.00
1.00
Wetlands
1.00
1.00
1.00
1.00
Slope greater than or equal to 25%
1.00
1.00
1.00
1.00
Slopes 15% to less than 25%
.33
.33
.33
.33
NOTES:
*
Applies to a sewage system that uses land for treatment/disposal. For a sewage system not using land, the density factor equals 0.0.
**
Applies to a site that uses on-site wells as the water source. For sites using public water or community water that is part of a larger, integrated system, the density factor equals 0.00 provided the Township Engineer is satisfied that the water supply will be sufficient, will not cause any adverse effect to existing wells and will comply with all applicable requirements of Chapter 342, Article I, Well Drilling, of the Code of the Township of Upper Pottsgrove.
B. 
Developable acreage. Each proposed lot shall have a developable acreage, as defined in this chapter, of one acre or more.
[Amended 6-23-2003 by Ord. No. 351]
Density and dimensional requirements shall be as follows:
A. 
Single-family detached dwellings:
Neighborhood Lotting
Standard Lotting
Maximum tract size
5 acres
Minimum common open land
60%
Maximum density
1 DU/gross acre
1 DU/developable acre
Minimum lot size
10,000 square feet
1 developable acre*
Maximum lot size
1 acre
Minimum lot width
75 feet
150 feet
Minimum front yard
[Amended 3-6-2006 by Ord. No. 391]
25 feet
100 feet, arterial roads; 60 feet, collector streets; 40 feet, local streets
Minimum side yard
15 feet
25/60 ft. agg.
Minimum rear yard
25 feet
40 feet
Maximum building coverage
[Amended 7-17-2006 by Ord. No. 397]
18%, with the exception of "Excess building coverage lots" as established in § 350-71D
5%
Impervious cover limitations
30%
25%
Maximum height of dwellings
35 feet
35 feet
Maximum height of accessory buildings
15 feet
15 feet
NOTES:
*Developable acreage shall be based on the standards contained in § 350-70.
B. 
Estate lot standards.
(1) 
Minimum lot size: two acres.
(2) 
Maximum developed area (setbacks apply to developed area of lot): one acre.
(3) 
Minimum lot width: 150 feet.
(4) 
Minimum front yard: 40 feet.
(5) 
Minimum side yard: 25/60 feet agg.
(6) 
Minimum rear yard: 40 feet.
(7) 
Maximum building coverage: 15% of developed area.
(8) 
Maximum height of dwellings: 35 feet.
(9) 
Maximum height of accessory buildings: 15 feet.
C. 
Neighborhood setbacks.
(1) 
The outer boundaries of all neighborhoods shall meet the following setbacks. The boundary is defined as the outer edge of lots abutting open land or as the outer boundary of roads adjacent to the fronts of those lots.
(a) 
From external arterial and collector road ultimate rights-of-way (including limited access roads) or from scenic roads as defined in the Comprehensive or Parks, Recreation and Open Space Plan: 200 feet.
(b) 
From all other external road ultimate rights-of-way: 200 feet.
(c) 
From all tract boundaries: 100 feet.
(d) 
From crops or pastures: 100 feet.
(e) 
From buildings or yards housing livestock: 300 feet.
(f) 
From other residential neighborhoods: 100 feet.
(g) 
From wetlands, floodplains, watercourses or steep slopes: 75 feet.
(h) 
From active recreation areas such as court or playing fields: 75 feet.
(2) 
All setback areas along roads shall be landscaped according to the standards of Chapter 310, Subdivision and Land Development, to preserve scenic views and integrate the neighborhood into the surrounding landscape.
(3) 
Setbacks may be reduced by the Board of Commissioners under the following circumstances:
(a) 
Setbacks from roads may be reduced to a minimum of 50 feet if the applicant can demonstrate that the existing vegetation and/or topography form an effective visual buffer along these roads.
(b) 
Setbacks from tract boundaries may be eliminated for a maximum of 25% of the lots in a proposed development in compliance with § 350-68E.
(c) 
All other neighborhood setbacks may be reduced to 1/2 of the requirement specified in Subsection C(1)(a) through (h) if the applicant can demonstrate that reduced setbacks improve the plan's compliance with the neighborhood design standards in § 350-68, the intent of this article and other goals of the Comprehensive Plan and the Parks, Recreation and Open Space Plan. Tract boundary setback may be reduced to 50 feet if heavily wooded.
D. 
Excess building coverage lots.
[Added 7-17-2006 by Ord. No. 397]
(1) 
Excess building coverage lots shall not exceed 20% of the total residential lots contained in an R-1 neighborhood development.
(2) 
Lots classified as excess building coverage lots shall be permitted to have maximum building coverage in excess of 18% but shall not exceed 22% maximum building coverage.
(3) 
No lots classified as excess building coverage lots shall be permitted to lie adjacent to one another.
A. 
The following methods of ownership may be used for common open space land and facilities, either individually or in combination:
(1) 
Fee simple dedication to the Township, provided that:
(a) 
The dedication is accepted by the Township.
(b) 
The land is accessible to all Township residents.
(c) 
There is no cost of acquisition to the Township.
(d) 
The Township agrees to maintain such lands and has access to do so.
(e) 
Financial security is posted to ensure structural integrity and functioning of any improvements for a term not to exceed 18 months from the date of acceptance of dedication. The amount of this security shall not exceed 15% of the actual cost of installation of the improvements.
(2) 
Homeowners' or condominium association. Open space and associated facilities may be held by a homeowners' association approved by the Township and formed and operated in accordance with the following provisions or a condominium association in compliance with the provisions of the Pennsylvania Condominium Act,[1] provided:
(a) 
Membership in the association is mandatory for all homeowners and their successors. Membership shares shall be clearly defined in the association bylaws.
(b) 
The developer shall provide a description of the association, including:
[1] 
Articles of incorporation;
[2] 
Bylaws;
[3] 
Declaration of covenants, easements and restrictions.
(c) 
Access to the undivided open space shall be granted to all association members.
(d) 
The homeowners' association declaration of covenants, easements and restrictions specifically shall define the rights of the association to execute the following assessments. The assessment process shall be designed to provide sufficient funds to permit the association to meet all of its maintenance obligations. The process also shall be sufficient to provide funds to pay taxes.
[1] 
Common expenses assessments. Day to day operating costs associated with common areas. The declaration should specify the developer's duty for payment of common expense assessments and the starting date for payment by the association.
[2] 
Special assessments. Unanticipated expenses.
[3] 
Capital improvement assessments. Planned major expenditures for maintenance, repair, replacement or construction of capital improvements to the common areas.
(e) 
The association shall be organized by the developer and operated with financial subsidy by the developer before the sale of any lots within the development.
(f) 
The conditions, timing and mechanism for transferring control from the developer to the association must be defined and approved by the Township.
(g) 
The association shall be responsible for maintenance, insurance and taxes on undivided open space.
(h) 
The members of the association shall share equitably the costs of maintaining and developing such undivided open space. The association bylaws must authorize the association to place liens on property of members failing to meet their share of the financial obligation. If the association fails to maintain the open land, the Township has the right, but not the duty, to maintain the property and bill the association to cover expenses. The Township's right to maintain common areas shall commence during project construction.
(i) 
In the event of a proposed transfer of undivided open land (to the Township, private conservation organization or private landowner) within the ownership methods permitted herein, or in the event of the assumption of maintenance of undivided open space land by the Township, notice of such action shall be given to all property owners within the development.
(j) 
The association shall have adequate staff to administer common facilities and properly and continually maintain the undivided open land.
(k) 
The association shall be responsible for the following facilities (at a minimum):
[1] 
Recreational facilities.
[2] 
Stormwater management facilities.
[3] 
Fire protection facilities.
[4] 
Landscaping facilities.
[5] 
Private roads.
[6] 
Community sewage disposal systems.
[7] 
Community wells.
(l) 
The developer shall provide homeowners with a clear description of the rights and responsibilities of the association. Simple documentation (such as a descriptive brochure) of this information shall be provided to homeowners at closing.
[1]
Editor's Note: See 68 Pa.C.S.A. § 3101 et seq.
(3) 
Transfer of title to a private conservation organization. With the permission of the Township, an owner may transfer title to a private, nonprofit organization whose purpose is to conserve open space and/or natural resources, provided that:
(a) 
The organization is acceptable to the Township and is a bona fide conservation organization with perpetual existence.
(b) 
The conveyance contains appropriate provisions for proper reverter or retransfer in the event that the organization becomes unwilling or unable to continue carrying out its functions.
(4) 
Private landowner approved by the Township. If this form of ownership is used, then a deed restriction and a conservation easement permanently restricting the land from further subdivision or development is required.
B. 
Conservation of open land.
(1) 
All common open land shall be permanently deed restricted from further subdivision and development. The deed restriction shall be reviewed and approved as part of the subdivision and land development process.
(2) 
In addition, all open land shall be restricted further by the use of conservation easements among at least two parties consisting of the owner of the land and one or more of the following:
(a) 
The Township, county or state.
(b) 
The homeowners' association (if one exists).
(c) 
A conservation or open space oriented organization such as the following land trusts and conservancies:
[1] 
The Conservancy of Montgomery County.
[2] 
The Montgomery County Lands Trust.
[3] 
The Heritage Conservancy.
[4] 
The Perkiomen Valley Watershed Association.
[5] 
The Natural Lands Trust.
[6] 
The Brandywine Conservancy.
(3) 
The conservation easement shall be reviewed and approved by the Township Solicitor as part of the final subdivision and land development approval.
C. 
Maintenance. Unless otherwise agreed to by the Board of Commissioners, the cost and responsibility of maintaining common facilities and open land shall be as hereinafter set forth. If the facilities are not properly maintained, the Township may assume responsibility of maintenance and assess costs as provided by law and this article.
(1) 
The ultimate owner of the common open space and facilities shall be responsible for providing all monies required for operations, maintenance or physical improvements to the open space and facilities through annual dues, special assessments, etc.
(2) 
In the event that the owner of the open space at any time after the establishment of a development containing undivided open space fails to maintain the undivided open space is reasonable order and condition in accordance with the Landscape Management Plan, the Township may serve written notice upon the owner of record, setting forth the manner in which the owner of record has failed to maintain the undivided open space in reasonable condition.
(3) 
Failure to adequately maintain the undivided open space and facilities in reasonable order and condition constitutes a violation of this article. The Township is hereby authorized to give notice to the owner or occupant of any violation, directing the owner to remedy the same. If the owner fails to take remedial action, then the Township has the right to maintain the undivided open space and facilities.
(4) 
Should any costs for maintenance of undivided open space incurred by the Township remain uncompensated by November 1 of each year, a late fee of 15% shall be added to such bills and a lien shall be filed against the premises in the same manner as other municipal liens.
A. 
All development shall be provided with adequate sewage treatment facilities in conformance with the Township's 537 plan. Alternatives may include:
(1) 
Public sewers.
(2) 
Individual systems, employing subsurface disposal or spray irrigation.
(3) 
Community systems serving two or more units, employing subsurface disposal or spray irrigation.
B. 
All neighborhood development shall be served by a centralized water system of adequate capacity to serve all dwelling units in compliance with Chapter 342, Article I, Well Drilling. Dwellings on lots of 40,000 square feet or more may be served by on-site wells.
A. 
To develop tracts other than tracts of less than five acres, existing as of the date of adoption of this article, with single-family detached dwellings with standard lotting with no common open land, the applicant must demonstrate that the following conditions are met to the Township's satisfaction:
(1) 
The tract in question is unsuitable for neighborhood development due to factors such as the size or shape of the tract or the location of natural features.
(2) 
A complete environmental and visual inventory of the site has been submitted, as required by § 350-67.
(3) 
The proposed development is consistent with good design principles and land development practices. Specifically, it shall be designed to minimize views of dwellings from exterior roads and to avoid stripping out of lots along those roads.
B. 
Conditional use standards for exceeding percentages in neighborhood design, § 350-68E and J. The percentage of lots extending to the property line or not directly facing open space may be increased to a maximum of 35% by conditional use, subject to the following provisions:
(1) 
The topography, vegetation, environmental constraints or neighborhood configuration allow no other option.
(2) 
The resulting configuration will increase the area of contiguous open space.
(3) 
All houses are within 1,000 feet of accessible open space (excluding neighborhood open space).
C. 
Conditional use standards for increasing the percent of estate lot open space that counts towards the total amount of common open space, as specified in § 350-69A(12)(a). This maximum amount of estate lot open space that can be applied to the 60% required tract open space may be increased to 100% by conditional use subject to the following condition: the estate lot open space will be used for continuing farm operations, orchards or a similar agricultural use.
D. 
No conditional use shall be granted for economic reasons.
Development under the standards of this article may be phased and estate lots may be subdivided prior to neighborhood development in accordance with a unified development plan for the entire tract and the following requirements:
A. 
An inventory and analysis of the entire tract shall be completed in accordance with § 350-67.
B. 
The unified development plan for the tract shall be approved as a sketch plan and shall be made a part of a binding development agreement between the applicant and the Township.
C. 
When estate lots are subdivided prior to neighborhood development, the following standards shall apply:
(1) 
If neighborhood development is desired in the future, the plan must be designed so that sufficient land area is set aside in a suitable configuration for that purpose.
(2) 
The maximum density permitted within the neighborhood development shall be based upon the acreage of the original tract, minus the dwelling units on the estate lots.
(3) 
The estate lots shall be restricted from further subdivision by restrictive covenant when they are created.
(4) 
Any future neighborhood development shall be consistent with the approved sketch plan and development agreement.