This section delineates the minimum on site design requirements for PUDs. Any off site improvements which may also be required to mitigate negative effects of the development will be considered on a project by project basis.
A. General Design Requirements:
1. The proposed uses and design of a PUD must be compatible with existing homes, businesses, neighborhoods, and the natural characteristics of the area. PUDs shall minimize grading, road construction and disturbance of the terrain, vegetation, soils, and drainageways, and shall prevent soil erosion. To achieve this, the board may condition approval on the inclusion of design features such as building envelopes, no-disturbance zones, height restrictions or planting or retention of vegetation.
2. The development must be planned as a cohesive, integrated whole, consistent with the intent and purpose of this title.
3. The PUD plan must be compatible with the goals, policies and future land use map of the Kootenai County comprehensive plan.
4. Within the airport overlay zone, the proposal must be in conformance with the then current Kootenai County airport master plan, and an avigation easement, approved by the airport director, must be recorded.
5. The inclusion of open spaces within PUDs is to be encouraged to the greatest extent practicable. Open space shall be distinguished as common (for use by all property owners) or public (open to all members of the general public).
B. Utilities And Services: The development of a PUD must occur in conjunction with services and facilities that are appropriate and adequate for the proposed uses. Services and facilities necessary to serve the development must be feasible, available and adequate, and the proposal must mitigate the negative effects of the development so that the existing quality of services is not compromised, and so there is no substantial increase in the cost of services to existing residents. At a minimum, the following utilities and services shall be required:
1. Sewage disposal. A sewage disposal system or systems meeting the requirements of Panhandle health district or the Idaho department of environmental quality (DEQ), whichever has jurisdiction. Commercial and industrial areas must be served by a wastewater treatment plant approved by DEQ. No subsurface discharge of treated or untreated, nondomestic wastewater is permitted.
2. Water. A water system approved by DEQ that can provide fire flows or water storage as required by the fire protection district with jurisdiction. The new components of a water system, and any necessary improvements to an existing system, must be designed and constructed in conformance with the requirements of DEQ, the "Idaho Standards For Public Works Construction" promulgated by the Idaho division of public works, the fire protection district with jurisdiction, and if applicable, the water district, utility or corporation.
a. PUDs must be served by a fire protection district.
b. PUDs shall meet the requirements of the fire protection district with jurisdiction, including those pertaining to roads, driveways, fire flows, hydrants, water storage and defensible space.
c. PUDs shall also minimize the hazards associated with wildfire. PUDs that are located in timbered areas shall provide a fire mitigation plan, developed by a professional forester, that is approved by the director, the fire district, or the Idaho department of lands. The plan must be implemented throughout the development of the PUD.
5. Roads and trails. Roads, trails and sidewalks within a PUD shall comply with the applicable provisions of section 8.6.707 of this title.
6. Garbage collection. Department staff shall seek comment regarding garbage collection service from the Kootenai County solid waste department. The property owner shall arrange for garbage collection service as required by the board.
7. Underground installation. Underground installation of utilities shall be required unless utility providers determine that site conditions would preclude or would render such installation impracticable or cost prohibitive, taking into consideration such factors as terrain, available easements, safety, maintenance, repair, replacement and the like. The board may, however, allow appurtenances to these systems to be installed above ground if they can be effectively screened in a manner that is visually appealing and compatible with the PUD and are approved by the utility provider.
8. Other services. Other services and facilities may be required on a project by project basis.
C. Sensitive Area Requirements:
1. Viewsheds: Mountain and water views and vistas are an important part of the character of Kootenai County, contributing to the visual quality of the area, increasing property values, attracting visitors, and enhancing the desirability and livability of the community. Therefore, PUDs should be designed so that development can be accomplished in a manner that is visually unobtrusive, environmentally responsible, and compatible with the character of the area.
2. Minimization Of Disturbance: PUDs must be designed to fit houses, structures and roads into and around hillsides in a manner that minimizes disturbance of the terrain, vegetation and drainageways, that will not result in soil erosion, and that is compatible with the natural characteristics of the area. If the vertical height of any cut or fill slope, or any combination thereof, will exceed thirty feet (30'), effective measures must be taken to mitigate the visibility of the slope.
3. Stream And Wetland Protection Buffers: When a PUD abuts a stream or wetland, a stream or wetland protection buffer must be reserved and shown on the plan.
a. Purpose: The purpose of stream and wetland protection buffers is to protect downstream property owners and water resources from increased or decreased flows, to prevent sedimentation, to promote good water quality, and to protect fish and wildlife habitat.
b. Dimensions: Stream and wetland protection buffers shall be as set forth in table 3-301 of this section.
STREAM AND WETLAND PROTECTION BUFFER WIDTHS
c. Designation: Each stream or wetland protection buffer shall be labeled as such on the plan. The board may require that such areas be designated as an easement or conservation easement.
d. Development Restrictions: Proposed road and utility crossings within designated stream and wetland protection buffers must be shown on the plan, must be kept to a minimum, and must take the shortest possible route across the area. Roads and utilities shall not be constructed within such areas except at approved crossings. Fences, walkways which do not exceed four feet (4') in width, stairway landings which do not exceed six feet (6') in length or width, and trams may be constructed in stream and wetland protection buffers, provided that disturbance of the ground and vegetation is minimized.
e. Maintenance: In stream and wetland protection buffers, native vegetation and large organic debris must be protected or replanted to leave the area in the most natural condition possible. Any necessary maintenance must be in conformance with chapter 7, article 7.1 of this title and with applicable best management practices.
4. Shoreline Management Areas: When a PUD abuts a shoreline, the shoreline management area must be reserved and shown on the plan. Activities within the shoreline management area shall be limited to those set forth in chapter 7, article 7.1 of this title, and shall also be in conformance with applicable best management practices.
D. Zero Lot Line Development: PUD designs may include zero lot line development for single-family and multi-family dwellings, with each dwelling and lot independently owned, and lot lines along common walls providing:
1. The construction complies with all applicable provisions of building codes adopted pursuant to title 7, chapter 1 of this code which pertain to common wall and/or zero lot line construction;
2. Common walls are adequately soundproofed in accordance with the requirements of applicable provisions of adopted building codes;
3. Electrical, water, sewer, heating and air conditioning systems, and all other incorporated utility systems are separately metered or designated for each dwelling unit.
4. Deeds and covenants pertaining to buildings must contain appropriate provisions to ensure harmonious maintenance of shared indoor or outdoor walls, and outdoor yard areas. Easements shall be recorded as necessary to assure access to shared outdoor walls and yards.
E. Common Open Space: Common open space in PUDs shall meet the following requirements:
1. The amount and design of common open space in a PUD must be appropriate to the scale and character of the project, considering its size, density, expected population, topography, and the number and type of dwellings to be provided. A minimum of fifteen percent (15%) of the land within the PUD shall be developed into usable public or common open space, or recreational facilities for the residents or users of the development. If possible, the open space should be designed to connect with existing or planned open space on neighboring properties. Areas designated as open space shall be accessible to all residents of the development from a road or right of way. Utility, drainage and similar easements and rights of way are not acceptable for common open space unless such land is usable for a trail or similar purpose and is approved by the board.
2. Common open space in a PUD shall be:
a. Retained by the owner of the development;
b. Dedicated to the public; or
c. Conveyed to a cooperative corporation such as a homeowners' association.
3. Responsibility for maintenance of open space areas shall be specified by the developer in the application for final plan approval, and must be approved by the board.
F. Commercial And Industrial Uses: PUDs that include commercial or industrial uses and structures must meet the following additional requirements:
1. Commercial and industrial areas must be developed with parklike surroundings utilizing landscaping and/or existing woodlands around structures, parking areas, roads, loading areas, and areas used for outdoor storage of raw materials or products.
2. If the PUD includes, or is adjacent to residential zones or residential uses, commercial or industrial uses must be of a nonnuisance character, and must be clean, quiet and free of bright lighting, odor, dust or smoke.
3. Loading areas must be provided for delivery trucks.
4. All areas designed for future expansion or not intended for immediate improvement or development shall be landscaped or otherwise maintained in a neat and orderly manner.
5. Lighting may not exceed 0.2 foot-candle at the property line of any lots used for commercial or industrial purposes. (Ord. 493, 6-9-2016)