17.90.090 Maximum gross floor area bonus.
A. The maximum gross floor area of the PUD may be increased, as set forth in subsection C of this section, only under the following circumstances: (1) the increase must be consistent with the underlying comprehensive plan designation for the property; and (2) the increase must not exceed 25 percent additional gross floor area over the smallest gross floor area allowed outright in the underlying zone. If, in any underlying zoning classification, a larger gross floor area is allowed or there is a procedure allowing the gross floor area to be increased, none shall apply in a PUD. The procedure in this section constitutes the exclusive method to increase the gross floor area in a PUD. No variances from the gross floor area (whether such variance would constitute an increase or decrease in gross floor area) shall be allowed in a PUD. All gross floor area calculations shall be based on net buildable land.
B. Exceptions to subsection A of this section are:
1. In the general business district (B-2) the increase may be up to 50 percent, except that in the Olympic Village Activity Center and the Westside general business district (B-2) no increase in gross floor area shall be allowed; and
2. In the commercial district (C-1) the increase may be 30 percent.
C. In addition to the above, the maximum gross floor area bonus may only be allowed if the applicant demonstrates the following:
1. A 10 percent increase in gross floor area towards the maximum percent increase for the following additional open space. Open space must satisfy the standards in GHMC 17.90.100 for open space in order to be eligible for a density bonus. Such open space must be open to the general public. In addition, the provision of open space must exceed by at least 30 percent the minimum required under the design manual and be proportional to the size of the development.
2. A 10 percent increase in gross floor area towards the maximum percent increase for the preservation of natural features. The natural feature shall be a desirable feature that would not otherwise be preserved such as, but not limited to, an unregulated wetland, stream corridor, unique geological feature, and substantial overstory vegetation which would not otherwise be preserved.
3. A 10 percent increase in gross floor area towards the maximum percent increase for the preservation of scenic vista corridor(s) on site and off site and accessible to the general public.
4. A 10 percent increase in gross floor area towards the maximum percent increase for the provision of a desirable urban amenity. The urban amenity shall complement the proposed development and exceed the requirements of the design manual for common space or plazas. Such amenity may include such things as a play area, public transit amenities, public restrooms, fountains or other comparable amenities identified by the applicant or city staff.
5. A 10 percent increase in gross floor area towards the maximum percent increase for the design of a stormwater treatment system as an amenity. A stormwater treatment (retention/detention) facility shall be designed as a visually aesthetic and physically accessible amenity for the enjoyment of the public. (Ord. 1131 § 9, 2008; Ord. 959 § 2, 2004; Ord. 951 § 7, 2004; Ord. 866 § 9, 2001).