The topic of how long it takes Disney to build an attraction pops up in a regular basis around here, so I thought it would be interesting to put together a list of how long various attraction took to build. Start dates are based on when the first signs of construction were reported (since it's hard to get actual start date). If an existing attraction had to be demolished (eg. Horizons) the start date is from the start of demolition. End date is the date when it fully opened to the public, not the date of soft openings. The end dates for the Mine Ride and WWoHP Phase 2 are estimates.
WDW
Attraction Start End Duration (months)
Avatar 1/10/2014 4/1/2017(?) 40
Frozen Ever After 10/5/2014 6/21/2016(?) 21
Toy Story Third Track 9/25/2014 5/24/2016 20
BatB/Little Mermaid Section of FLE 2/10/2010 12/6/2012 34
Storybook Circus 2/11/2011 9/30/2012 19
Mine Ride 9/1/2011 4/30/2014 31
Tangled Restrooms 5/10/2011 3/8/2013 22
Expedition Everest 6/1/2003 4/7/2006 34
Mission:Space 3/29/2000 10/10/2003 43
Test Track 1/2/1996 3/17/1999 38
Test Track Presented by Chevrolet 4/15/2012 12/6/2012 8
Toy Story Mania 11/18/2006 5/31/2008 18
Universal Orlando
Attraction Start End Duration (months)
WWoHP Phase 1 1/1/2008 6/28/2010 29
WWoHP Phase 2 1/2/2012 6/30/2014 29
Rip Ride Rockit 5/1/2008 8/19/2009 15
Transformers 6/1/2012 6/20/2013 12
Revenge of the Mummy 9/8/2002 5/21/2004 20
Despicable Me 8/18/2011 7/2/2012 11
Kong 2/1/2014 6/1/2016 28
[Edit] Moved Everest and Mine Ride starts one month earlier
WDW
Attraction Start End Duration (months)
Avatar 1/10/2014 4/1/2017(?) 40
Frozen Ever After 10/5/2014 6/21/2016(?) 21
Toy Story Third Track 9/25/2014 5/24/2016 20
BatB/Little Mermaid Section of FLE 2/10/2010 12/6/2012 34
Storybook Circus 2/11/2011 9/30/2012 19
Mine Ride 9/1/2011 4/30/2014 31
Tangled Restrooms 5/10/2011 3/8/2013 22
Expedition Everest 6/1/2003 4/7/2006 34
Mission:Space 3/29/2000 10/10/2003 43
Test Track 1/2/1996 3/17/1999 38
Test Track Presented by Chevrolet 4/15/2012 12/6/2012 8
Toy Story Mania 11/18/2006 5/31/2008 18
Universal Orlando
Attraction Start End Duration (months)
WWoHP Phase 1 1/1/2008 6/28/2010 29
WWoHP Phase 2 1/2/2012 6/30/2014 29
Rip Ride Rockit 5/1/2008 8/19/2009 15
Transformers 6/1/2012 6/20/2013 12
Revenge of the Mummy 9/8/2002 5/21/2004 20
Despicable Me 8/18/2011 7/2/2012 11
Kong 2/1/2014 6/1/2016 28
[Edit] Moved Everest and Mine Ride starts one month earlier
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