Froedtert Health plans to open a rehabilitation hospital and medical office building at the site of the former Wisconsin Heart Hospital at 1000 W. Blue Mound Road in Wauwatosa.

The health system bought the site — which includes a hospital, medical office building and parking structure — from Ascension Wisconsin in 2018.

Renovations are expected to begin late this summer and the construction work is expected to completed by August of next year, Froedtert Health said in filing with the Plan Commission of Wauwatosa.

Froedtert Health is not disclosing the projected cost of the project.

The health system now operates a licensed rehabilitation hospital within Froedtert Hospital.

The planned hospital initially will have 25 beds and is expected to be expanded to 50 beds in five years, Froedtert Health said.