Case Study City Center Tower

Seoul, Korea


BACKGROUND
City Center Tower is an 18-story, 393,657 square-foot, Grade B office property located in Seoul’s CBD. City Center Tower underwent a US$43 million renovation, which was completed in November 2014, with construction waste being minimized by reusing the existing building structure. AEW acquired the property on a turnkey basis in March 2015.

SOLUTION
During the renovation, the following sustainability features were added:

  • Low-emissivity double glazed windows and aluminum frame exterior that decreases energy loss and noise pollution
  • Solar panels with a capacity of 206.25 kW, generating over 5% of the electricity load
  • Ice storage cooler that freezes ice late at night and uses it to cool air during the day to conserve energy
  • 95-ton rainwater and disposed water tank that recycles water for restroom and landscaping
  • Machine insulation that are 20% thicker than standard specification to decrease heat loss from the duct and piping
  • Five-passenger elevators with destination control system, increasing the efficiency by 20%

RESULTS
City Center Tower was awarded a second-class Korean Green Building Certificate in November 2014 and a first-class Korean Building Energy Efficiency Rating Certificate in January 2015

Korean Green Building Certificate Category

Item

Points

Land Use

2.0

Traffic

4.0

Energy

17.8

Material and Resource

15.0

Water Resource

10.0

Environment Contamination

3.0

Maintenance

6.0

Indoor Environment

7.49

Total

72.12 (weighted-basis)


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