Soyak Center

Location:Istanbul, Turkey
Architect:Pei Cobb Freed Partners
Client:Soyak Construction & Trading
LEED:LEED CS Silver Pursued

Soyak Center is comprised of a large core and shell office tower with sky garden (the Crystal Tower), a smaller office tower which Soyak’s will partially occupy, a 4 story plinth of support and retail spaces, roof gardens, and multiple levels of underground parking.  Vidaris worked closely on early design decisions and communicated ASHRAE, US-EPA and other U.S. design requirements to the local team to avoid potential problems with pursuing LEED certification.  Further complications arose from the Turkish project delivery model, in which design documents are turned over to the contractor at 75% completion and with minimal specifications.  Vidaris assisted the team in foreseeing the potential certification pitfalls and producing a more developed set of documents with robust and prescriptive specifications. Vidaris continues to provide construction phase support to confirm compliance with the more rigorous sustainable specification requirements.  Vidaris' energy analysis of the project indicated that local standard design assumptions would not achieve the required 14% energy savings over the ASHRAE 90.1-2004 Appendix G baseline.  To meet the requirement Vidaris worked with JB&B to test multiple energy efficiency measures including:

  • Increased part-load efficiency and wet bulb reset controls for the cooling tower
  • Decreased dynamic pumping heads on the hot and chilled water systems
  • Lighting controls with occupancy sensors at back-of-house areas
  • CO2 monitors with demand control ventilation at the large, variable use spaces in the plinth
  • Lease mandated occupancy sensors for tenant office areas
  • Lease mandated daylight dimming controls at perimeter tenant office areas

The energy efficient upgrades allowed the design to surpass the 14% requirement.  The team has also developed a tenant “ceiling design” in order to streamline the tenant lighting requirements and insure compliance Vidaris performed energy analyses, LEED/green consulting and commissioning. This iconic tower was designed by Pei Cobb Freed Partners as architects and JB&B as MEP.

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