Mercy Hospital of Buffalo is planning to build a $4.8 million unit for patients undergoing treatment and diagnostic procedures in the hospital’s interventional labs, the hospital announced Wednesday.

The 8,860-square-foot, 25-bed holding and recovery unit would serve patients as they prepare for, or recover from, a variety of minimally invasive cardiological, vascular, neurovascular and radiological procedures.

The hospital said it would create clinical efficiencies by combining two existing units into one unit and relocating it closer to the labs on the second floor.

The new unit will also offer patients private rooms.

For the project to proceed, the State Health Department must approve a certificate of need recently filed by Mercy Hospital. Construction could begin within 90 days and would take six months to complete, said Melanie Griffis, a hospital spokeswoman.

The project requires the renovation of existing space on the hospital’s second floor and the relocation of the nuclear medicine department, observation beds and staff shower and locker rooms.