Officers were called to Holbeck Road, Hanwell, shortly before 4.40pm after concerns were raised for the welfare of a woman inside a property.
They forced entry and found the body of a woman who was later identified as 35-year-old Shakira. She was pronounced dead at the scene.
On Monday, three people were arrested on suspicion of murder - a 25-year-old man and two women, aged 37 and aged 43.
They were charged with murder on Thursday evening, and are due to appear in custody at Westminster Magistrates’ Court on Friday.
Detective Chief Inspector Brian Howie, from the Met’s Specialist Crime Command, said: “I am pleased that we have secured charges against these three individuals as we continue to work to get justice for Shakira’s family.
“They are understandably devastated and specialist officers are continuing to provide them with whatever support we can.
“Charging suspects is just part of our role. It is now vitally important that we build as thorough a picture as we can about Shakira’s recent movements and her life in the months and potentially years before her death.
“I am appealing for any information about Shakira specifically in the period between Friday, September 9 and Friday, September 16.
“Did you see her out and about? Did you have contact with her in any way? If so, did she speak about any concerns she had? I would urge anyone with information, no matter how insignificant you think it may be, to get in touch with my team.
“I also want to hear from anyone who knew Shakira in any capacity, not just in the immediate past, so we can build a comprehensive picture of her life.”
Anyone with information, no matter how insignificant it might be, is urged to call police on 101 giving the reference 59/26SEP.
Information can also be provided to Crimestoppers, anonymously, on 0800 555 111. Crimestoppers are a charity. They take anonymity incredibly seriously, they do not ask for names and they cannot trace calls or IP addresses.
Information, images and video can also be uploaded to the dedicated police major incident page for this case.