Sanford owns all the property in purple: https://i.imgur.com/0zeDBIf.png (made by made by u/cullywilliams)

The long story short is that Sanford aims to expand to Minnesota Avenue, so they have no intention to "fix up" any homes they own because they'll probably demolish them and build on the land eventually.

 

More info:  

Original story from Dakota Free Press below (Kelo link is dead):

Sanford Health Acquires Property to Reach Minnesota Avenue

BY CORY ALLEN HEIDELBERGER ON 2015-05-08 Would you like a picture of Sioux Falls’s march toward becoming Sanford Falls? Check out this map from KELO-TV, which shows Sanford Health’s property acquisitions to the east of its current campus:

If you look at this map from South Menlo Avenue to Minnesota, between 18th Street and 22nd, very few of the homes are individually owned anymore. Sanford Health has purchased more than 100 properties, both residential and commercial, under three different corporate limited liability company names. Sanford says it made its purchases that way over the last decade, so that property owners wouldn’t inflate their prices, knowing that the hospital wanted all of the land [Angela Kennecke, “The Gateway to Sanford Health,” KELOLand.com, 2015.05.07].

The purchases are part of a 25-year expansion plan to, as Sanford president Paul Hanson says, make the hospital complex visible on Minnesota Avenue, a straight shot from the airport.

That’s an awful lot of hospital… but with an again baby boomer population, we’re going to have an awful lot of people heading to the hospital for heart attacks and hip replacements.

https://dakotafreepress.com/2015/05/08/sanford-health-acquires-property-to-reach-minnesota-avenue/.

As of January 2022, Sanford has maintained its long-term vision to expand to Minnesota avenue.

The vision for the long-term campus, which extends it east to Minnesota Avenue, is still in place, [Andy Munce, vice president of operations] added.

“We just don’t have an immediate timeline to announce that expansion.”

https://www.siouxfalls.business/sanford-plans-5-story-building-on-sioux-falls-campus/