[Amended 2-14-2005 by Ord. No. 2005-03LU]
A.
Compliance. All development approved after the effective date of this chapter shall comply with this article.
B.
Natural resource mapping. Prior to the submission of any application for preliminary major subdivision approval, minor subdivision approval, site plan approval or, if required by the Board or not previously submitted in connection with a particular lot or tract, a construction permit, maps shall be submitted delineating the natural resources on the entire tract containing the development site, even if the entire tract is not being proposed for development. Such maps shall be drawn at the largest possible scale that will allow the entire lot or tract to be shown on one of the four standard sheet sizes permitted for plats by the Map Filing Law, Chapter 141, Laws of 1960 (8 1/2 inches by 13 inches; 15 inches by 21 inches; 24 inches by 36 inches; 30 inches by 42 inches), but shall in no case be drawn at a scale of less than one inch equals 200 feet. The natural resources shown shall include all of the types identified in § 230-116B that shall be mapped using the references and sources set forth in § 230-116C and may be in GIS format, provided that such GIS mapping shall be presented with sufficient clarity and contrast so that the information presented is easily read and interpreted. It is anticipated that an applicant may need to retain the services of one or more qualified experts to assemble and map the natural resources on the tract and to interpret the data required at Subsection C(2) below.
(1)
Minor subdivisions.
(a)
Optional GIS mapping by the Township for minor subdivisions. Any applicant contemplating a minor subdivision shall have the option of paying a fee to the Township sufficient to cover the cost of contracting with an outside entity for the mapping of the Hunterdon County GIS data for the tract at a scale of not less than one inch equals 200 feet. The Hunterdon County GIS data are based upon the published sources cited herein and include necessary geological information. Such data shall be sufficient for the Planning Board's review of a minor subdivision unless the unique characteristics of the site or the nature of the development proposed for it warrant a site-specific investigation of certain features or unless the applicant elects to undertake a site-specific investigation relative to certain features.
(b)
Minor subdivision incorporating entire tract. An applicant contemplating a minor subdivision of an entire tract with no lands that can be further subdivided is urged to appear before the Planning Board for informal review after completing the natural resources mapping and before platting of the proposed minor subdivision for a determination of the lot yield and so that the Board will be able to comment on the proposed lot lines and dwelling locations. An applicant for a minor subdivision incorporating an entire tract is not required to complete and submit a Buildable Tract Area Calculation Form but shall submit a Lot Yield Calculation Form.
(c)
Minor subdivision incorporating a portion of a tract where further subdivision potential exists. An applicant contemplating a minor subdivision of a portion of a tract where further subdivision potential exists is urged to appear before the Planning Board for informal review after completing the natural resource mapping and the calculations required on the Lot Yield Calculation Form and the Buildable Tract Area Calculation Form and before platting the proposed minor subdivision for a determination of the lot yield and the buildable tract area and so that the Board will be able to advise the applicant as to the proposed locations for the new lot(s) relative to the current use and potential future development of the entire tract, consistent with the Township's criteria for major subdivisions and the objectives of the Master Plan, and will also be able to comment on the proposed lot lines and dwelling location(s).
(2)
All other applications. After completing the mapping of the natural resources on the tract and the calculations required at Subsection C(2) and presented on the Lot Yield Calculation Form and on the Buildable Tract Area Calculation Form, and prior to preparing a preliminary subdivision plat or site plan, the applicant is urged to appear before the Planning Board for informal review for a determination of the lot yield and the buildable tract area and so that the Board will be able to advise the applicant as to the development alternative proposed to be utilized and the layout of the subdivision or development of the tract consistent with the Township's criteria and the objectives of the Master Plan.
(3)
Exemptions. Subdivision of tracts outside of the A-1 Zone or A-2 Zone and subdivisions of tracts of less than 12 acres in the A-1 Zone and less than 24 acres in the A-2 Zone shall not be required to include Class I, Class II and Class III agricultural soils in the natural resources mapping nor on the Buildable Tract Area Calculation Form.
C.
Lot yield and buildable tract area calculations. This section is intended to be used, first, to compute the permitted number of dwelling units or lots on a tract after subtracting the area of all critical resource protection areas from the adjusted gross tract area and, second, to determine the area of the tract that is best suited for development after subtracting all identified resource protection areas from the adjusted gross tract area. It is designed to assist the Board in guiding, to the greatest extent practicable, all development activities to the most suitable area(s) of a tract, or, where insufficient land remains after subtracting all resource protection areas to accommodate the permitted density of development as determined by the lot yield calculation, to assist the Board in determining the extent to which development shall be permitted to occur within the resource protection areas. The buildable tract area calculation is not intended to be used to further reduce the number of dwelling units or lots determined by the lot yield calculation but merely to determine where improvements shall be located on the tract.
(1)
Applicability. The Lot Yield and Buildable Tract Area Calculation Forms shall be submitted prior to the submission of all minor subdivision applications and at the informal sketch or conceptual plan stage for all subdivision and site plans or prior to the issuance of a construction permit, unless otherwise provided in this section. In addition, any development proposing one or more single-family detached dwelling(s) must comply with § 230-12G(1), Exceptions to minimum lot size and yard requirements.
(2)
Submission requirements.
(a)
Lot yield. In determining the lot yield, the Lot Yield Calculation Form presented herein shall be used and shall be submitted to the Board along with the required natural resources mapping.
(b)
Buildable tract area. In determining the buildable tract area, the Buildable Tract Area Calculation Form presented herein shall be used and shall be submitted to the Board along with the required natural resource mapping. The Buildable Tract Area Calculation Form shall not be required to be submitted for minor subdivisions incorporating an entire tract with no lands that can be further subdivided.
Lot Yield Calculation Form | ||
This form is used to deduct Critical Resource Protection Areas and other unbuildable portions of a tract from the gross tract area for the purpose of determining the number of dwelling units permitted within the tract. | ||
Instructions: | ||
a. | Enter appropriate acreage in Column A, multiply Column A by factor in Column B and place result in Column C. For cells that have dashes, no information is required to be entered. | |
b. | Do not double count acreage in Lines 2 through 6. When there is an overlap, enter the affected acreage on the line with the first named characteristic and do not include any portion of that acreage in the identification and calculation of any other named characteristic. | |
Column A | Column B | Column C | |||
|---|---|---|---|---|---|
1. | Gross tract area | 1.00 | |||
2. | Area of existing road and transmission rights-of-way, including proposed new roads within the tract but excluding easements or rights-of-way required for widening of existing roads abutting the tract boundaries | 1.00 | |||
3. | Area of all existing easements and restrictive covenants except for those easements and restrictive covenants that were imposed as a result of a prior development approval (and that are not to be deducted for the purposes of determining lot yield) | 1.00 | |||
4. | Area of floodplains, wetlands, NJDEP-required wetlands transition areas, any areas deemed by NJDEP to be unavailable for development due to the presence of Special Water Resource Protection Areas for C-1 waters, streams, required stream corridors, and land under water (except swimming pools) | 1.00 | |||
5. | Area of slopes 25% and greater | 1.00 | |||
6. | Area of slopes 15% and greater but less than 25% | 0.85 | |||
7. | Sum of Lines 2 through 6, Column C | — | — | ||
8. | Net tract area (Line 1 less Line 7) | — | — | ||
9. | — | — | |||
10. | Maximum number of dwelling units permitted (Line 8 divided by lot area per dwelling unit in Line 9) | — | — |
Buildable Tract Area Calculation Form [Amended 6-14-2004 by Ord. No. 2004-09LU; 2-14-2005 by Ord. No. 2005-03LU] | ||
The form presented on the following page is used to determine the permitted location(s) for the lots to be created within the tract. An applicant for a minor subdivision incorporating an entire tract is not required to complete and submit this Buildable Tract Area Calculation Form but shall submit the Lot Yield Calculation Form presented on the preceding page. | ||
Instructions: | ||
a. | Enter appropriate acreage in Column A, multiply Column A by factor in Column B and place result in Column C. For cells that have dashes, no information is required to be entered. | |
b. | Do not double-count acreage in Lines 2 through 11. When there is an overlap, enter the affected acreage on the line with the first named characteristic and do not include any portion of that acreage in the identification and calculation of any other named characteristic. | |
c. | Deduct Lines 9 and 10 only for land in A-1 and A-2 Zones. See Appendix IV for agricultural soil classifications.[1] For tracts of less than 12 acres in the A-1 Zone and less than 24 acres in the A-2 Zone, leave the cells in Lines 9 and 10 blank. | |
d. | If the buildable tract area entered in Line 13 is insufficient to accommodate the number of dwelling units permitted by the Lot Yield Calculation Form, then development shall be permitted to occur in those resource protection areas identified in Lines 8 through 11 in inverse order (beginning with "area of non-floodplain woodlands" identified in Line 11 and proceeding to area of Class III agricultural soils and so forth) to the minimum extent necessary to accommodate the permitted number of dwelling units, provided, however, that the layout of the subdivision shall be designed to minimize the need for intrusions into the resource protection areas and further provided that the municipal agency may require that development be directed into other areas of the tract to advance the objectives of the Master Plan and this article. The municipal agency may require conservation easements on portions of lots that include resource protection areas that need not be disturbed and/or are not permitted to be disturbed for the construction of improvements. | |
Column A | Column B | Column C | |||
|---|---|---|---|---|---|
1. | Gross tract area | 1.00 | |||
2. | Area of existing road and transmission rights-of-way, including proposed new roads within the tract but excluding easements or rights-of-way required for widening of existing roads abutting the tract boundaries | 1.00 | |||
3. | Area of all existing easements and restrictive covenants | 1.00 | |||
4. | Area of floodplains, wetlands, NJDEP-required wetlands transition areas, NJDEP-required Special Water Resource Protection Areas for C-1 waters, streams, required stream corridors and land under water (except swimming pools) | 1.00 | |||
5. | Area of floodplain woodlands | 1.00 | |||
6. | Area of slopes 25% and greater | 1.00 | |||
7. | Area of slopes 15% and greater with highly erodible soils or a depth to bedrock of 5 feet or less per SCS | 1.00 | |||
8. | Area of slopes 15% to 25% without highly erodible soils and with a depth to bedrock of greater than 5 feet per SCS | 0.75 | |||
9. | Area of Class I and Class II (Prime) agricultural soils (see Instruction c. above for small tracts) | 0.90 | |||
10. | Area of Class III (Statewide Importance) agricultural soils (see Instruction c. above for small tracts) | 0.70 | |||
11. | Area of non-floodplain woodlands | 0.90 | |||
12. | Sum of Lines 2 through 11, Column C | — | — | ||
13. | Buildable tract area (Line 1 less Line 12) | — | — |
[1]
Editor's Note: Appendix IV is included as an attachment to this chapter.
(3)
Calculation of maximum permitted impervious surface coverage.
_________ acres | x | ___________ | = | __________ acres | ||
Net Tract Area (Line 8 of Lot Yield Calculation Form) | Maximum Impervious Surface Ratio Permitted in Zone | Maximum Permitted Impervious Surface Coverage for the Tract |