Nearly $1B in Downtown Projects Added in 2025
Date Posted: January 13, 2026
Posted In: Discussion, Projects,
From St. Louis Business Journal: Significant downtown St. Louis projects were announced or started in 2025.
From January to December, nearly $1 billion in projects were unveiled or broke ground in the 2.91 square miles that encompass the region’s downtown.
Millennium
Of the new projects announced in 2025, the biggest was the Millennium Hotel site redevelopment, with an estimated cost of $670 million.
The redevelopment, set to reshape a large plot of land near the Gateway Arch, is being led by Baltimore-based real estate firm Cordish Cos., the developer behind Ballpark Village, and the Gateway Arch Park Foundation. It was announced in February 2025 and is to result in 1.3 million square feet of residential, office, commercial and cultural space added. Demolition of the hotel is currently underway.
Mansion House
Another large project is the redevelopment of The Mansion House Apartments. Located at 300 N. Fourth St., construction officially broke ground this past summer, about a year after the project was revealed in August 2024. The $195 million project by St. Louis-based developer New + Found will renovate the building’s 415 units, parking garage and common areas. Leasing is set to begin by June 2027.
Dome Renovations
Renovations to the St. Louis Dome totaling $54 million were approved in 2025, and a $16 million renovation of the Farm and Home Savings and Loan Association Building, at 1001 Locust St., is underway after the building was purchased in early 2025 by the project’s developer, architect and general contractor Blackline Design + Construction.
In total, more than $3.5 billion in projects are proposed or underway downtown.