West Midlands Police have closed off Suffolk Road, in Wednesbury, following the incident, which saw a man in his 20s stabbed during a disorder at around 12.30am on Saturday.
Officers have also erected a blue tent in front of the property and placed a tarpaulin over a car at the front of the property as they investigate.
Local residents said they saw a brawl involving a gang of young men fighting in the street with weapons.
The gang then fled on foot as the victim lay prone on a driveway.
Police today remained at the scene in Suffolk Road with forensics officers combing the area for clues.
Life-saving medical equipment could also be seen on the driveway.
A spokeswoman for West Midlands Police said: "We are investigating after a man was stabbed during a disorder at a property on Suffolk Road, Wednesbury, at 12.30am today.
"The man in his 20s was taken to hospital where he remains in a critical but stable condition.
"A scene is being held as our investigations continue.
"CCTV is also being reviewed and we are urging anyone who witnessed this attack or with any information to contact us via live chat on our website or by calling 101.
"Please quote crime reference number 20/1285529/21"
Alternatively, contact Crimestoppers anonymously on 0800 555111 or at crimestoppers-uk.org