Here goes - Subject has a one car garage that has been converted to living area. Owners have disclosed that the conversion was done without a permit and it is not reflected in county records. The room is of similar quality to the rest of the house (you do step down). Conversions of this nature are not uncommon in the area (though the "best" available comparables do not have conversions) and the room could have market appeal. The lender has requested that the room be treated as a garage and the appraisal completed "as is" with a cost to cure. IMO - I will not count the conversion in the GLA. Make an extraordinary assumption that the permitting entity for the subject would allow the conversion to remain as is. Provide an estimate to cure but not adjust the comps for the cost to cure. Could I or should I put "room conversion" on the grid and give it value based on the market (like one might with a workshop?) Suggestions? Thank you kindly.