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(a) Purpose. The purpose of this Section is to use Transferable Development Rights to facilitate the economic viability of buildings that are of civic importance, that are not built to their full development potential, and that are within the Central SoMa Special Use District, established in Section 249.78.
(b) Definitions.
“Development Lot.” A lot within the Central SoMa Special Use District to which Transferable Development Rights may be transferred. The following areas are exempted from the calculation of the Development Lot area: land dedicated to the City for affordable housing pursuant to Section 249.78 or land dedicated to the City for publicly-owned parks or publicly-owned recreation centers pursuant to Section 263.32 or 263.34.
“Preservation Lot.” A parcel of land within the Central SoMa Special Use District on which exists (1) a Significant or Contributory Building, as designated pursuant to Article 11 of this Code; or (2) a structure designated as an individual landmark or as contributory to a historic district designated pursuant to Article 10 of this Code. The boundaries of the Preservation Lot shall be the boundaries of the Assessor’s Lot on which the building is located at the time the ordinance making the designation is adopted, unless boundaries are otherwise specified in that ordinance.
“Transfer Lot.” A lot within the Central SoMa Special Use District from which Transferable Development Rights may be transferred.
“Transferable Development Rights (TDR).” Units of allowable Gross Floor Area that may be transferred, pursuant to the provisions of this Section and Article 11 of this Code, from a Transfer Lot to increase the allowable Gross Floor Area of a development on a Development Lot.
“Unit of TDR.” One unit of TDR is one square foot of Gross Floor Area.
(1) The maximum TDR available for transfer from a Transfer Lot consists of the difference between the allowable Gross Floor Area on the Transfer Lot and the actual Gross Floor Area of the development located on the Transfer Lot. For purposes of this Section, the allowable Gross Floor Area of the Transfer Lot is as follows:
(A) 3.0 Floor Area Ratio for projects in height districts of 40 to 49 feet;
(B) 4.0 Floor Area Ratio for projects in height districts of 50 to 59 feet;
(C) 5.0 Floor Area Ratio for projects in height districts of 60 to 69 feet;
(D) 6.0 Floor Area Ratio for projects in height districts of 70 to 85 feet; and
(E) 7.5 Floor Area Ratio for projects in height districts over 85 feet.
(2) TDR may not be transferred for use on any lot on which there is a Significant or Contributory building designated pursuant to Article 11 or any building designated pursuant to Article 10; provided that this restriction shall not apply if the Historic Preservation Commission finds that the additional space resulting from the transfer of TDR is essential to make economically feasible the reinforcement of a Significant or Contributory building designated pursuant to Article 11 to meet the standards for seismic loads and forces of the Building Code, in which case TDR may be transferred for that purpose, provided that the project sponsor has satisfied all other requirements of this Section and Article 11, including but not limited to the requirements of Sections 1111 through 1111.6.
(3) Notwithstanding any other provision of this Section 128.1, development on a Development Lot is limited by the provisions of this Code, other than those on floor area ratio, governing the approval of projects, including but not limited to the requirements relating to height, bulk, setback, sunlight access, and separation between towers, and any limitations imposed pursuant to Section 329 review applicable to the Development Lot.
(d) Controls. The transfer of TDR shall be allowed only under the following circumstances:
(1) The Transfer Lot is a Preservation Lot or consists of a building all of the housing units of which are Affordable Housing Units as defined in Section 401.
(Added by Ord. 296-18, File No. 180184, App. 12/12/2018, Eff. 1/12/2019)