Date
Inquiry

At over 2 million GSF, Beijing Parkview Green (PVG) is one of China\'s largest sustainable architecture projects. PVG is comprised of four buildings, including two 11-story and two 20-story towers (Blocks A-D) that house a retail area, offices and a six-star hotel - all of which are enclosed in a "Microclimatic Envelope" (ME) comprised of glass and plastic (ETFE - ethylene-tetrafluoroethylene). As a separate, non-structurally tied edifice, the ME operates in concert with the buildings at the site, providing benefits in energy conservation, solar reflectance, and stormwater management, while providing insulation value to the structures within. If you think of a glass covering on a cake stand, you have a pretty good idea of the nature of the ME. The project earns SS Credit 2, and in the context of SSc5.2, we are proposing that public plazas under the microclimatic envelope be considered "pedestrian oriented hardscape" for the purpose of compliance with this credit. The project area is 332,484 sq. ft., of which 176,724 sq. ft. (53%) is building footprint. The project contains a total of 155,760 sq.ft. of open space of which, 52,536 sq.ft. is vegetated. Pedestrian oriented hardscape totals 103,225 sq.ft: 33,619 sq. ft. located outside the ME and 69,606 sq. ft. under the ME. According to these figures, the vegetated open space exceeds the required 25%, representing 34% of the total open space. Because the plaza under the ME is fully publicly accessible, we believe it meets the intent of Credit SS 5.2, and we should be able to count the pedestrian oriented hardscape under it toward compliance with this credit. Given the current figures for vegetated open space and pedestrian oriented hardscape we exceed the requirement of 20% of the project site area. We seek this CIR to confirm that the use of the plaza area within the ME helps us comply with SSc5.2 and that the 47% total open space qualifies this project for exemplary performance under this credit.

Ruling

The project is requesting clarification as to whether the pedestrian oriented space within the secondary building envelope, can be applied towards SSc5.2. LEED defines interior portions of the building to be those areas that are inside of the weather proofing system. Spaces which are considered to be interior cannot contribute towards the achievement of maximizing open space. If the weather proofing system for the building is the "micoclimate envelope" described above, than the space within is considered to be interior space and cannot be applied towards the pedestrian oriented hardscape or vegetated spaces for this credit. Applicable Internationally; China.

Internationally Applicable
On
Campus Applicable
Off