ProspectMI
Sophomore Member
- Joined
- Jul 25, 2013
- Professional Status
- Certified Residential Appraiser
- State
- Michigan
I'm curious as to what other appraisers do in markets with basements when it comes to estimating finished basement area.
Over time I realized that the only way I can confidently do it and maintain some sort of consistency across the board is to estimate the finished area based on a 95/50/0 method that I came up with on my own. This was a result of listing agents never being able to properly reflect the finished area of basements on the MLS. When the MLS shows the basement is finished, I take the entire basement area and factor that 95% of the basement is finished with 5% being attributed to utilities. Part finished I go 50% and unfinished I go 0%. I document this in my report as an estimation only to remain consistent with my adjustments and I include an extraordinary assumption in this as well.
A few years back when I was trying to get a designation through Appraisal Institute, the person reviewing my reports said this method is fine as long as I explain my method.
In 2020 I was removed from US Bank's approved appraisers list for improperly documenting a trainees assistance, and as of this week was denied approval to be back on the list and they cited my basement methodology as one of the reasons.
I should note that this estimation is primarily for comps and not the subject, although I do use it for the subject as well as it is challenging to get an exact calculation of finished area in many instances in my market area.
What are other appraisers doing for basements?
Over time I realized that the only way I can confidently do it and maintain some sort of consistency across the board is to estimate the finished area based on a 95/50/0 method that I came up with on my own. This was a result of listing agents never being able to properly reflect the finished area of basements on the MLS. When the MLS shows the basement is finished, I take the entire basement area and factor that 95% of the basement is finished with 5% being attributed to utilities. Part finished I go 50% and unfinished I go 0%. I document this in my report as an estimation only to remain consistent with my adjustments and I include an extraordinary assumption in this as well.
A few years back when I was trying to get a designation through Appraisal Institute, the person reviewing my reports said this method is fine as long as I explain my method.
In 2020 I was removed from US Bank's approved appraisers list for improperly documenting a trainees assistance, and as of this week was denied approval to be back on the list and they cited my basement methodology as one of the reasons.
I should note that this estimation is primarily for comps and not the subject, although I do use it for the subject as well as it is challenging to get an exact calculation of finished area in many instances in my market area.
What are other appraisers doing for basements?
Last edited: