Real Estate through private funds


I’m working for a FI that does not know the area of the real estate assets it invested through private funds. They came up with an approximation methodology to estimate the area of the funds based on the property value and an average price per m2, to justify their exclusion from the analysis while still respecting the 67% coverage requirement.

Could you please advise if the approach is fitting for the SBTi and what kind of justifications would need to be put forward in the submission file?