Children's Mercy now has its building permit for the centerpiece of its Overland Park, Kansas expansion. The permit, dated Nov. 2, covers a "5-Story MOB Addition (Shell), Lobby Expansion, and Parking Deck" at the hospital campus at 5808 W. 110th St., and it carries a reported value of $73.8 million.
That's the first public price tag we've seen on the medical office building alone. When the hospital announced the project in April 2025, it gave one number for everything: $152 million, covering surgery space, the new building and renovations to the hospital itself.
From announcement to permit
The project moved through Overland Park's planning process in two rounds. City documents from last summer described an addition of roughly 126,000 square feet, the Johnson County Post reported in July 2025. By December, planning commissioners had approved a final development plan for a 116,767-square-foot addition on the north side of campus, about 10,000 square feet smaller, according to Ingram's.
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The permit is for the shell. It's written to the 2018 International Building Code and covers the structure, the lobby expansion and the parking deck. The interiors of the medical offices aren't part of this one.
What's going up
The campus sits just off I-435 between Metcalf and Nall avenues. Today it's a 52-bed hospital, Ingram's reported, and the new building goes on the north side.
The addition brings outpatient clinics that are now spread across several locations under one roof. The hospital's expansion page lists an orthopedic rehabilitation center, a sleep clinic and an infusion center among them. The existing lobby grows by about 7,000 square feet to tie the new building to the hospital, with a covered drop-off canopy between them, the Kansas City Business Journal reported. The July plans also showed new entrances, a pharmacy expansion and a plaza park with "an interactive installation for children," per the Post.
"We listened to the needs of physicians and families in this community," Amy Fallon, the hospital's president of regional operations, told the Post.
One detail differs. The permit calls the medical office building five stories. Ingram's and the Business Journal describe four stories with a two-story penthouse on top. !Children's Mercy hospital in Overland Park in 2011, when its sign read Children's Mercy South The Children's Mercy hospital in Overland Park in 2011, when its sign read Children's Mercy South. Photo: Nightryder84, CC BY-SA 3.0, via Wikimedia Commons (cropped).
Three phases, four years
Children's Mercy calls the whole job a four-year project. Surgical services went first: a renovated sterile processing department plus new pre-op, post-op and procedural space, set to finish this past summer, the Post reported in April 2025.
The medical office building is next, with an opening planned for summer 2027. After the clinics move out of the hospital, the space they leave behind gets renovated, with that work set to finish by summer 2029. The hospital's page says the renovations include shell space for future surgical growth. New programs coming to the campus include inpatient rehab and a neuroscience center.
The Tom Watson Emergency Center stays open through the whole project, according to the hospital.
Healthcare holds up in a slower month
The permit lands as hospital work is one of the steadier parts of the building market. Dodge Construction Network's index of nonresidential projects entering planning fell 9% in October, but planning for healthcare projects improved over the month, Construction Dive reported today.
Children's Mercy is also planning a much larger rebuild of its main campus in Kansas City, Missouri, a seven-phase plan that KCUR reported could include a 20-story hospital tower.
How we count
The permit comes from the City of Overland Park's building permit records. The $73.8 million is the valuation reported on the permit, not a contract amount. Building sizes, costs and dates outside the permit come from the reporting linked here.
See Overland Park's latest permit numbers, updated weekly.
Sources
- Johnson County Post, "Children's Mercy hospital in Overland Park getting $152 million expansion" (April 7, 2025): johnsoncountypost.com
- Johnson County Post, "Children's Mercy to add medical offices, parking at Overland Park hospital" (July 31, 2025): johnsoncountypost.com
- Ingram's, "Children's Mercy Adding New Medical Office to Overland Park Campus" (Dec. 10, 2025): ingrams.com
- Kansas City Business Journal, "Children's Mercy will add medical office on Overland Park campus" (Dec. 9, 2025), as reposted by Children's Mercy: news.childrensmercy.org
- Children's Mercy, "Children's Mercy Kansas Expansion Plan": childrensmercy.org
- Construction Dive, "Commercial pullback led to lower construction planning in October" (Nov. 9, 2026): constructiondive.com
- KCUR, "Children's Mercy seeks massive expansion of downtown Kansas City campus. Here's why" (April 16, 2026): kcur.org
- City of Overland Park building permit BLD-C-2026-00017.
- Photo: Nightryder84, CC BY-SA 3.0, via Wikimedia Commons: commons.wikimedia.org
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