APPENDIX B
MASTER PLAN DEVELOPMENT DEED RESTRICTED OPEN SPACE LAND CALCULATION
Deed Restricted Open Space
Deed restricted open space land consists of land in a subdivision or MPD that is left undeveloped and is deed restricted for public or private agricultural, scenic, or recreational purposes. Deed restricted open space does not include open areas in private individual residential lots, public roads, private road, parking spaces and drive aisles in parking lots, land covered by structures not designated for active civic recreational use, and outdoor storage areas.
Deed restricted open space is not a requirement for the development of base density, except in those instances where due to the number of lots an MPD is required.
Deed restricted open space is a requirement for the development of bonus density.
Bonus Density Calculation
If the number of lots in a proposed subdivision within an MPD is greater than the base density, then so long as: a) the number and configuration of the lots complies with section 11-4-12 of this title, and b) the greater of either the deed restricted open space required by this appendix or the ten percent (10%) open space minimum requirement of subsection 11-4-12E6 of this title is set aside, the applicant shall be entitled to such increased number of lots in excess of base density. The amount of required deed restricted open space is calculated using the following formula:
OS = (Z x L) - (0.7 x A)
OS - Required deed restricted open space, expressed in acres.
A - Area of parcel(s) being subdivided, expressed in acres.
Z - Zone factor which is the land area required to support a single dwelling unit or lot at base density. Expressed in acres per dwelling unit or lot.
L - Number of dwelling units or lots being proposed.
With the adopted zone districts:
AG-5 Z=5
AG-10 Z=10
AG-20 Z=20
AG-40 Z=40
AG-80 Z=80
Max number of dwelling units or lots at base density, Lb = A/Z.
When the number of dwelling units or lots proposed exceed the base density (L>Lb) then deed restricted open space is required.
No more than fifty percent (50%) of the required deed restricted open space can consist of undevelopable lands.
Example: For 40 acre parcel in AG-5 Zone, Z=5 acres per dwelling unit and therefor the base density, Lb=40/5 or 8 dwelling units.
If 11 dwelling units are proposed to be developed, then deed restricted open space is required in the amount:
OS = (Z x L) - (0.7 x A)
OS = (5 x 11) - (0.7 x 40)
27 acres of deed restricted open space.
The developable area is thus 40 - 27 or 13 acres for 11 units plus associated infrastructure.
In this example no more than 13.5 acres of required deed restricted open space can consist of undevelopable lands (wetlands, steep slopes etc.). (Ord. 868-A, 7-25-2018)