[Amended 2-13-2015 by Ord. No. 2015-4; 5-5-2016 by Ord. No. 2016-5; 7-20-2022 by Ord. No. 2022-27]
The purpose of the cluster residential development design option is to provide residential design flexibility in order to preserve open space and preserve environmentally sensitive areas by reducing area and yard requirements. The cluster residential design option may be applied, by mutual agreement between the Land Use Board and the developer, to subdivisions in the RR Rural Residential and R1.5 Low Density Residential Zone Districts. In order to promote maximum preservation of environmentally sensitive lands and open space for agricultural, passive recreational use, and active recreational use, lot averaging may be employed in order to promote subdivision design intended to create a more efficient utilization of open space and economy of land use in the design of cluster developments. The following shall apply to all cluster residential developments:
A. A minimum tract size of 20 acres shall be required in the RR Zone District and 10 acres in the R1.5 Zone District.
B. The maximum number of residential cluster lots shall not be greater than the number of lots which could be achieved on the tract by a conforming conventional residential development for noncluster development. A conceptual plan for an achievable conventional lot layout prepared in accordance with the RR or R1.5 Zone District requirements without variances shall be submitted to the Land Use Board in order to determine the lot yield for the tract. Upon acceptance of the conventional or noncluster lot yield by the Land Use Board, the applicant shall utilize the accepted lot yield for the cluster development.
C. All remaining land in a proposed development, other than streets, building lots and public utilities, shall be set aside as open space for agriculture, conservation, recreation, historic preservation, park areas, buffers, common areas and other public purposes. Pursuant to N.J.S.A. 40:55D-43, lands to be set aside may be deeded to a governmental agency not including the Township, or to a separate person or entity that the open space is otherwise conveyed to or owned by. Where such lands are not deeded to an entity in accordance with the above, the developer shall provide for an organization for the ownership and maintenance of the open space for the benefit of owners or residents of the development.
[Amended 7-11-2024 by Ord. No. 2024-23]
D. A design guideline of two acres is established as a minimum size for any open space parcel offered to a governmental agency not including the Township, a separate person or entity, or organization for the ownership and maintenance of the open space for the benefit of owners or residents of the development. The minimum open space parcel size shall be no less than 10% of total tract area to be clustered.
[Amended 7-11-2024 by Ord. No. 2024-23]
(1) R1.5 cluster standards.
(a) Minimum requirements for principal buildings in an R1.5 cluster development:
[1] Lot area.
[a] The minimum lot size shall be 10,000 square feet and the maximum lot area shall not exceed 20,000 square feet. The average lot size for lots which are the subject of a cluster development shall be a minimum of 15,000 square feet exclusive of any open space or public-purpose lot(s). No more than 10% of any building lot shall be encumbered by environmentally sensitive areas such as wetlands, wetlands transition areas, flood lands which have steep slopes of 15% or greater, or stream corridors as otherwise defined in this chapter.
[b] Flexibility and variety in lot and building layout, roadway construction, utility design and other site improvements shall be encouraged to best relate the improvements to the land. To that end, lots, buildings and utilities shall be designed so as to minimize the alteration of the natural terrain and fit into the open space environment of the R1.5 Low Density Residential District. The Land Use Board may permit the use of a flag lot(s) if it furthers the permanent preservation of common open space and promotes sound planning in the context of existing cluster standards.
(b) Minimum requirements for accessory buildings (see §
142-33.1 for additional standards applicable to accessory buildings):
[1] Distance to side line: 10 feet.
[2] Distance to rear line: 10 feet.
[3] Distance to other buildings: 15 feet.
(c) Maximum requirements:
[1] Building coverage of principal building: 18%.
[2] Building coverage of accessory building(s): 4 1/2%.
[3] Building height: 2 1/2 stories or 35 feet.
[4] Impervious surface ratio: 0.35.
(2) RR cluster standards for developments without public sewers.
(a) Minimum requirements for principal buildings in an RR cluster development utilizing an acceptable septic system.
[1] Lot area.
[a] The minimum lot size shall be 25,000 square feet and the maximum lot area shall not exceed 60,000 square feet. The average lot size for lots which are the subject of a cluster development shall be a minimum of 45,000 square feet exclusive of any open spaces or public-purpose lot(s). No more than 15% of any building lot shall be encumbered by environmentally sensitive areas such as wetlands, wetlands transition areas, flood lands which have steep slopes of 15% or greater, or stream corridors as otherwise defined in this chapter.
[b] Since public sanitary sewers are not available in the RR Zone District in order to qualify for the cluster option, adequate on-site or community sanitary disposal systems must be provided for their intended purpose as a condition of any approval to allow for use of the cluster option.
[c] Flexibility and variety in lot and building layout, roadway construction, utility design and other site improvements shall be encouraged to best relate the improvements to the land. To that end, lots, buildings and utilities shall be designed so as to minimize the alteration of the natural terrain and fit into the open space environment of the RR Rural Residential District. The Land Use Board may permit the use of a flag lot(s) if it furthers the permanent preservation of common open space and promotes sound planning in the context of existing cluster standards.
(b) Minimum requirements for accessory buildings (see §
142-33.1 for additional standards applicable to accessory buildings):
[1] Distance to side line: 25 feet.
[2] Distance to rear line: 30 feet.
[3] Distance to other buildings: 20 feet.
(c) Maximum requirements:
[1] Building coverage of principal building: 15%.
[2] Building coverage of accessory building(s): 3%.
[3] Building height: 2 1/2 stories or 35 feet.
[4] Impervious surface ratio: 0.20.
(3) RR cluster standards for developments with public sewers.
(a) Minimum requirements for principal buildings.
[1] The minimum lot area shall be 27,000 square feet and the average lot area for the lots which are the subject of a cluster development shall be a minimum of 35,000 square feet exclusive of any open space(s) or public purpose lot(s). The maximum lot coverage shall be 60,000 square feet. No more than 15% of any building lot shall be encumbered by environmentally sensitive areas such as wetlands, wetlands transition areas, flood lands which have steep slopes of 15% or greater, or stream corridors as otherwise defined in this chapter.
(b) Flexibility and variety in lot and building layout, roadway construction, utility design and other site improvements shall be encouraged to best relate the improvements to the land. To that end, lots, buildings and utilities shall be designed so as to minimize the alteration of the natural terrain and fit into the open space environment of the RR Rural Residential District. The Land Use Board may permit the use of a flag lot(s) if it furthers the permanent preservation of common open space and promotes sound planning in the context of cluster standards.
(c) Minimum requirements for accessory buildings. (See §
142-62 for additional standards applicable to accessory buildings.)
[1] Distance to side line: 25 feet.
[2] Distance to rear line: 30 feet.
[3] Distance to other buildings: 20 feet.
(d) Maximum requirements.
[1] Building coverage of principal building: 20%.
[2] Building coverage of accessory building(s): 5%.
[3] Building height: 2 1/2 stories or 35 feet.
[4] Impervious surface ratio: 0.25.
E. The land designated for open space shall include, wherever feasible, areas worthy of preservation such as streams, brooks, wooded areas, steep slopes and other natural features of scenic and conservation value, as well as sites valuable for their historical significance. The developer may be required to plant trees or make other similar landscaping improvements to such areas. The land designated for open space areas shall be subject to approval by the Township Land Use Board in its review and evaluation of the suitability of such land and shall be subject to acceptance of the dedication by the governing body. Efforts should be made to assemble such land from adjoining areas so as to form continuous bands of open space.
(1) Active recreational facilities shall be provided in planned residential cluster developments, subject to the review and approval of the Land Use Board. Such recreational facilities may be jointly provided by two or more developers within the district with convenient access to all users, provided that the facility and/or recreational area shall equal the recreational requirements of the participating properties served. The location of such recreational facilities shall be carefully planned to provide privacy for the users and to avoid problems of noise, lighting and similar nuisances which might interfere with their use and enjoyment by residents of the development.
(2) The design and use of open space areas interspersed among groupings of residential dwellings shall protect the natural terrain, woodlands, significant views and any unique and unusual feature. Open space other than that preserved for its natural values shall be suitably graded and landscaped. All structures within open space areas shall be sited as to retain their visual appeal. The roadways, lighting and such other improvements in the open space as shall be necessary to enhance the intended open space and recreational uses or accept a contribution in lieu of making such improvements.
F. Buffers along major streets, railroads or nonresidential zone boundaries shall be in conformity with the provisions of Subsection
F(1).
(1) Buffers along major streets, railroads and/or nonresidential zone boundaries shall contain sufficient existing natural vegetation, proposed planting and/or fencing to become, within 10 years, a significant visual buffer and shall provide berms and/or sound barriers to minimize the impact of sound within the following buffer widths:
Transportation Facilities | Width (feet) | Minimum Building Setback (feet) |
|---|
Railroad | 100 | 150 |
New Jersey Turnpike | 100 | 200 |
Arterial roads — Route 130, 33, 526 and Loop Road | 75 | 125 |
Municipal and county collector roads | 50 | 100 |
(2) Lands for recreation purposes shall be improved by the developer, including grading equipment, walkways and landscaping.
(3) Buffer areas to the extent allowed in Subsection
D(1)(a) and
D(2)(a) may be included in individual building lots as easements to be maintained by homeowners.
G. Open space deeded to the Township shall meet the following requirements:
(1) Documentation of title duly executed and in recordable form shall be delivered to the governing body accompanied by a certificate of title insurance from a New Jersey title insurance company attesting to good and marketable title.
(2) The documentation referred to above shall be in the form of a deed which shall remain in escrow with the Township pending completion of the project during which time the developer or subdivider, as the case may be, shall maintain the area and shall install any improvements thereon which may be required.
H. Where open space or common property is generated, the Township will not take title to such land. The generated open space or common property shall be deeded to a governmental agency not including the Township, or to a separate person or entity that the open space is otherwise conveyed to or owned by. Where such lands are not deeded to an entity in accordance with the above, the developer shall provide for an organization for the ownership and maintenance of the open space for the benefit of owners or residents of the development in accordance with N.J.S.A. 40:55D-43. The creation of the organization shall be approved by the Township Attorney and shall incorporate the following provisions which shall be submitted and approved prior to final plat approval:
[Amended 7-11-2024 by Ord. No. 2024-23]
(1) Membership in any created open space organization by all property owners shall be mandatory. Such required membership in any created open space organization and the responsibilities upon the members shall be in writing between the organization and the individual in the form of a covenant with each member agreeing to his liability for his pro rata share of the organization's costs and providing that the Township shall be a party beneficiary to such covenant entitled to enforce its provisions. The terms and conditions of the covenant shall be reviewed by both the Township Attorney and the Land Use Board Attorney prior to final approval.
(2) Executed deeds shall be tendered to the Township simultaneously with the granting of final subdivision approval stating that the prescribed use(s) of the lands in common ownership shall be absolute and not subject to reversion for possible future development.
(3) The open space organization shall be responsible for liability insurance, municipal taxes, maintenance of land and any facilities that may be erected on any land deeded to the open space organization and shall hold the Township harmless from any liability.
(4) Any assessment levied by the open space organization may become a lien on the private properties in the development. The duly created open space organization shall be allowed to adjust the assessment to meet changing needs.
(5) The open space organization initially created by the developer shall clearly describe in its bylaws the rights and obligations of any homeowner and tenant in the development, along with the covenant and model deeds and the articles of incorporation of the association prior to the granting of final approval by the Township.
(6) Part of the development proposals submitted to and approved by the Township shall be provisions to ensure that control of the open space organization will be transferred to the individual lot owners in the development based on a percentage of the dwelling units sold or occupied, together with assurances in the bylaws that the open space organization shall have the maintenance responsibilities for all lands to which it holds title.
(7) Where generated open space or common property is deeded to a governmental agency not including the Township, or to a separate person or entity that the open space is otherwise conveyed to or owned by, such deed of conveyance shall contain a restriction preserving the open space or common property for agriculture, conservation, recreation, historic preservation, park areas, buffers, common areas or other public purposes.
I. All dwelling units in the R1.5 Zone Districts shall be connected to public sanitary sewer and water systems. Cluster developments in the RR Zone District which are to be served by individual septic disposal systems, or by a sewage treatment facility constructed by the developer, shall be reviewed and approved by the Township Health Officer, Township Engineer and Township of Robbinsville Utilities Department.
J. Street tree requirements. See §
142-47F for street tree requirements.
K. Toolsheds. Private residential toolsheds in cluster residential developments shall be permitted accessory buildings and uses, provided they conform to the maximum number, square footage and height limitations and the minimum distance to side line, rear line and other building requirements applicable to the zone district in which they are located.