Twisp City Zoning Code

Intent. The SO is designed to create a link between this title and the town's shoreline master program (SMP). The overlay is a concept intended to add the more restrictive provisions of the SMP to the underlying zoning requirements in designated shoreline areas, as well as provide the administrator and project proponents with easy access to the more complex provisions of the SMP. Additional information on permitted uses, development standards, and regulatory requirements is found in the town's SMP.

Standards. The following development standards shall be mandatory for all development and uses in areas covered by the shoreline overlay:

Policy. The CAO overlay is designed to provide protection via design and environmental review for development and uses in those non-shoreline and floodplain areas designated as "critical areas" in the town's comprehensive plan and Chapter 18.60 TMC, Critical Areas Regulations. Such protection is necessary to protect steep slopes and other areas defined as "critical" by the Growth Management Act.

Uses Permitted. In a CAO those uses shall be permitted as set forth in the district use chart in Appendix A of this title for the underlying zoning district. All uses shall comply with the performance standards set forth in TMC § 18.40.050.

Lot Size, Allowable Densities, Lot Coverage, Height and Setbacks. Lot sizes, allowable densities, lot coverage, height and setback requirements in the CAO shall be as set forth for the underlying zoning district.

Signs. In a CAO signs shall be permitted subject to the requirements of the underlying zoning district.

Standards. Development within areas covered by the critical areas overlay shall be subject to standards and requirements of TMC § 18.15.070 and § 18.15.080 and Chapter 18.60 TMC, Critical Areas Regulations, as adopted or amended. Whenever a conflict arises between the standards and regulations contained within the critical areas overlay and the ordinance codified in this section, the more restrictive provisions shall apply.

Intent. The Lincoln Street overlay is intended to provide for the development of single-family residences that are otherwise prohibited in the underlying zoning.

Standards. Residential development in the Lincoln Street overlay shall be subject to the standards for the R-3 zoning district.

Purpose. A zoning overlay to establish special requirements and provisions for the former U.S. Forest Service Compound.

Accountability. This overlay shall establish the C-1 zoning district to the properties in the master plan shown in Exhibit E, attached to the ordinance codified in this section, and be effective upon adoption of the town council to those properties. The regulations and rules of this overlay shall only be applicable to property described herein and under the ownership of a nonprofit organization. Should the property or portions thereof be transferred to private ownership, this overlay shall be dissolved and the rules and regulations governing C-1 zone shall apply.

Site Description and Existing Conditions. The 6.4-acre property formally owned and operated by the USDA Forest Service is composed of two consolidated tax parcels (Tax No. 059). Exhibit E, attached to the ordinance codified in this section, details the master plan programmatic site plan. The property is bounded by SR 20 along the southern boundary, Glover Street to the west, 5th Avenue to the north, and Methow Street terminates in a dead end along the northeast corner of the property. Vehicular access to the property is located on Glover Street and on 5th Avenue with the majority ingress and egress of traffic flow directed to and from Glover Street.

The site is flat and set slightly below grade of Glover Street and SR 20. The core of the site is largely undeveloped and surfaced with asphalt and turf; the existing 17 structures are located along the perimeter. The site hosts mature landscaping trees which contribute to Twisp's recognition as a Tree City USA and comprise a significant portion of its urban forest. The trees buffer the site along the approach from the highway and create a softened entrance to Twisp's main street.

Overlay Intent. The public development overlay creates special requirements and provisions meant to achieve a balance between performance standards set forth within the Twisp zoning code and the underlying C-1 zone with the desired growth and expansion of development of the property as outlined in the TwispWorks 2010 master plan. Specifically, the PD overlay addresses the following elements: dimensional standards for the creation of new lots, provisions for residential uses, setbacks, parking standards, circulation and access, open space requirements, and administration guidelines for permitting of uses and developments on the site.

Dimensional Standards.

Residential Uses. As consistent with the TwispWorks master plan, as it currently exists or future amendments thereto, transient, short-term and long-term residential uses on the property may be permitted within existing or future structures so long as residents/occupants/lessees are affiliated with uses and activities occurring directly on site or in affiliation with TwispWorks programs. All new expansions or constructions of residential uses, dormitories and accommodations must meet the current building code and C-1 zoning requirements adopted by the town of Twisp.

Parking Standards. All new uses and structures shall provide for off-street parking on site of the property, regardless if the new activity or use is located within an existing structure (as allowed within C-1). The parking standards set forth in Twisp zoning code (TMC § 18.20.120 Table 1[1]) shall be strictly applied to the PDA property, and be applicable to all new uses and new structures.

Circulation and Access. Circulation shall provide safe flow of vehicular, pedestrian, and bicycle travel to and through the site. An estimated traffic count, including estimated peak flow counts, must be submitted to the planning administrator for all approved uses in excess of 20 trips/day. Additional traffic analysis shall be required in Phase 3 of the TwispWorks master plan. Access to the site shall be reconfigured and redirected to accommodate traffic flows as depicted in Exhibit F – Circulation, attached to the ordinance codified in this section, as follows:

Open Space Requirements. In keeping with campus aspect of the TwispWorks site, ample open space shall be provided at a minimum of 30 percent or 1.92 acres at final build out. Parking areas, loading zones, or vehicular use areas shall not be included in the 30 percent requirement. Pedestrian and bicycle paths and gathering spaces may be permitted as open space. Open space must be vegetated or surfaced with permeable technologies. Open spaces may be used for stormwater collection, landscape art, pathways and trails, gardens, or other low impact uses and activities that demonstrate the objectives of the TwispWorks 2010 master plan, as it currently exists or is amended. The construction of green (or vegetated roofs) or vertical walls may only qualify as open space if the green roof system can be visible at street level or accessible to the general public for viewing.

Administration. All uses and activities must be approved by the town of Twisp planning administrator and PDA management for compliance with the district use for the C-1 zoning district and this PDA overlay. The PDA or project sponsor must submit an impact assessment checklist provided by the town of Twisp and appropriate administrative form provided by the PDA, which includes a parking plan and traffic count as described above.