ASHRAE Journal - November 2014 - 64

2014 ASHRAE TECHNOLOGY AWARD CASE STUDIES

The King County Housing
Authority Central Annex renovated a former big box retail
store into a typical modern
office. The building uses energy
recovery ventilation with EC
motors and a variable capacity heat pump system with 50
zones. Another feature is low
lighting power design.

SECOND PLACE
COMMERCIAL BUILDINGS, NEW

Revamping

Ho-Hum Strip Mall

BY SHAWN ORAM, P.E., ASSOCIATE MEMBER ASHRAE

BUILDING AT A GLANCE

King County
Housing Authority
Central Annex
Location: Tukwila, Wash.
Owner: King County Housing Authority
Principal Use: Office
Includes: Private and Open Offices, Conference Rooms, Restrooms, Break Room
Employees/Occupants: 118 people
Gross Square Footage: 35,200
Conditioned Space Square Footage: 35,200
Substantial Completion/Occupancy: December
2012

Revamping a ho-hum strip mall building into a high
performance office building with a modest budget is
possible if designers are focused on energy efficiency
and costs from the beginning. King County Housing
Authority turned a 1978 building into a high performance office and achieved a low energy use intensity
(EUI) of 26.7 kBtu/ft2·yr (303 MJ/m2), making it one of
the most energy efficient office buildings in the region.
This was accomplished with a total construction budget
of only $95/ft2 ($1023/m2) of which $14/ft2 ($151/m2) was
spent for a 50-zone HVAC system.

Occupancy: 100%

Shawn Oram, P.E., is a mechanical engineer with Ecotope in Seattle.
64

ASHRAE JOURNAL

ashrae.org

N OVEM BER 2014



ASHRAE Journal - November 2014

Table of Contents for the Digital Edition of ASHRAE Journal - November 2014

Contents
ASHRAE Journal - November 2014 - Cover1
ASHRAE Journal - November 2014 - Cover2
ASHRAE Journal - November 2014 - 1
ASHRAE Journal - November 2014 - 2
ASHRAE Journal - November 2014 - Contents
ASHRAE Journal - November 2014 - 4
ASHRAE Journal - November 2014 - 5
ASHRAE Journal - November 2014 - 6
ASHRAE Journal - November 2014 - 7
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ASHRAE Journal - November 2014 - Cover3
ASHRAE Journal - November 2014 - Cover4
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