Those don't seem to be required documents. Since you're asking for a visitor visa, according to their guidance: Visitor: supporting documents guide, the only required document is your passport and photo. For the supporting documents ("other documents you may want to provide"), it lists the following:
- Previous travel documents/passports, which show previous travel.
- Financial documents showing that you have sufficient funds available.
These must clearly show that you have access to the funds, such as:
bank statements, building society book, proof of earnings such as a
letter from employer confirming employment details (start date of
employment, salary, role, company contact details)
- where a third
party (who is either in the UK or who will be legally in the UK at
the time of your visit ) is providing financial support to you e.g. a
business, a friend or a relative, documents to show they have
sufficient resources to support you in addition to themselves and any
dependant family should be provided
- Confirmation of legal residence, if you are not a national of the
country in which you are applying or your right to reside there is not
included in your passport.
- Details of employment or studies where you
have stated in your application that you are either employed or in
full-time studies. This could include: a letter from your employer on
company headed paper, detailing your role, salary and length of
employment, a letter from your education provider, on headed paper,
confirming your enrolment and leave of absence.
- If self employed:
business registration documents confirming the business owner’s name
and the date the business started trading
Please note that this list doesn't even mention deeds or other evidence of property ownership!
Now, from personal experience: I know several Russians who got UK visitor visas while owning no real property. All however were employed with good income, traveled to other countries before, and were in their 30s.