Terrel L. Shields
Elite Member
- Joined
- May 2, 2002
- Professional Status
- Certified General Appraiser
- State
- Arkansas
A - when built. Do they know the cost then? If so, you can determine a reasonable RCN based on the historical multiplier tables that NBC or MS have. Once you know what it costs, it is relatively safe to assume that the space takes on the effective age of the dwelling and deduct accordingly.
Say it cost $75,000 in 2012...10 year old. Multiplier is 1.39 - RCN is $104,250... House is 20 years old 30 years remaining life. So deduct 40% and contributory value is about $62K... place on a line below and try to find similar homes with sunrooms for comps.
Say it cost $75,000 in 2012...10 year old. Multiplier is 1.39 - RCN is $104,250... House is 20 years old 30 years remaining life. So deduct 40% and contributory value is about $62K... place on a line below and try to find similar homes with sunrooms for comps.