I have some idea what number in the context of buying real estate could be- but I find it very challenging to determine . At least what is decent real estate? Milion people- milion answers.
wide guess:
Any real estate, suitable for work at my unit- 2-3 month salaries....
Some medium solutions , neither anything nor decent 10 month/ salaries ( net)
Decent, that will attract my attention, both for location and quality- not below 36 salaries..