City of SeaTac Park & Fly Program
Potential Impacts on
Seattle-Tacoma International Airport
ITEM NO. _7a_Supp________
DATE OF
MEETING: Oct 11, 2011_____
City Center Zoning Code Revisions
• Ad Hoc Committee (AHC)
– Council requested AHC review of City Center Parking
Program
– 11 members including business reps, citizens and 2
Councilmembers
– Identified two options for consideration by Planning
Commission and City Council
• Recommendations Not Yet Reviewed
City Center Zoning Code Revisions
• Proposed Model #2
– Could result in as many as 7,000 stalls
– Possible use of Sound Transit bridge for pedestrian
access to Airport
• Recent Garage Development Under Existing Code
– Wally Park: 1,595 stalls
– Master Park: 1,061 stalls
City Center
Park & Fly Trends/Projections
0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
40,000
2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020
Parking stalls
Total market stalls - projected supply & demand
Historic supply
Supply incl. airport garage 1st/2nd floors, plus stalls under construction, plus 7,000
Supply incl. airport garage 1st/2nd floors, plus stalls under construction
Historic demand
Demand assuming historic high parking to passenger ratio
Demand assuming year 2010 parking to passenger ratio
Park & Fly Trends
Airport O&D
enplanements
Long-term parking
demand (estimated
market-wide)
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
0
2
4
6
8
10
12
14
2002 2003 2004 2005 2006 2007 2008 2009 2010
Parking transactions
Millions
O&D enplanements
Millions
Annual O&D enplanements and
parking demand
Potential Revenue Loss
Potential revenue
loss (low end)
Potential revenue
loss (high end)
Non-aeronautical
income after debt
service
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Potential Impacts to Airport
• Estimated 7,000 new stalls with pedestrian bridge
access to Airport
• Direct competition to Airport garage = $5M to
$11M annual impact on airport revenues
• Reduction in Airport’s ability to fund critical
projects and community amenities
