Not sure if this is the link Master Yoda is talking about, but it gives lat/long for townships/ranges/sections:
http://www.earthpoint.us/Townships.aspx
Plugging in the data, and looking at the points on the line between Section 19 and 20, the line runs from about the intersection of Bonnet Creek Parkway and Vista Boulevard due south to a point in the trees between the Epcot parking lot, Epcot Center Drive, and Backstage Lane.
If the numbers and lat/long are right, that would put the new pet care center either off the extreme east side of the Epcot parking lot, somewhere along Bonnet Creek Parkway opposite Port Orleans Riverside, or right near the intersection of Bonnet Creek Parkway and Vista Boulevard (part of the development there perhaps?).
Someone check my calculations and see if you come up with the same points!
Edit: Best Friends Pet Care, the listed owner on the paperwork, is the company that operates the kennels in WDW already.
http://www.bestfriendspetcare.com Nothing on their site about a new location.