The facility was meant to open as a wedding venue in August but Khan is now ready to hand over the keys, insisting the safety of the public takes precedence at this stage.
The 33-year-old wrote on Twitter: "I am aware of how difficult it is for the public to get a hospital bed in this tragic time.
"I am prepared to give my 60,000 square foot 4 story building which is due to be a wedding hall and retail outlet to the NHSuk to help people affected by the coronavirus.
"Please keep safe."
Khan is the latest name in sport to make a huge contribution to help fight the Covid-19 outbreak.