Depreciation why is account 0011 not included in Net book Value

Just looking into an earlier thread regarding NBV (see quote below).

0010 (Freehold property) and 0011 (Leasehold property) it seems are not considered in the NBV calculation. There are actually no default depreciation codes for either FH or LH property. I will check with our in-house accountant to see if this needs to be updated.