BEDROOM;
Entrance: A bedroom needs at least two methods of egress, so it should be accessible from the house (commonly through a door), and then have one other exit (window or door).
Ceiling Height: A bedroom ceiling needs to be at least 7ft tall. It’s okay if some portions of the ceiling are below this level, but at least 50% of the ceiling needs to be a minimum of 7ft in height. (R305.1).
Escape: A bedroom must have one other method of egress beyond the entrance point. A door to the exterior works as an exit point, and so does a window. According to the International Residential Code, a bedroom window can be between 24 and 44 inches from the floor, and it needs at least 5.7 square feet for the opening, and it must measure no less than 24 inches high and 20 inches wide (R310.1).
Size: The room should be at least 70 sq. ft., and more specifically the room cannot be smaller than 7 feet in any horizontal direction
This topic contains information on reviewing the Improvements section of the appraisal report form, including:
www.fanniemae.com
Gross Living Area:
For consistency in the sales comparison analysis, the appraiser should compare above-grade areas to above-grade areas and below-grade areas to below-grade areas. The appraiser may need to deviate from this approach if the style of the subject property or any of the comparables does not lend itself to such comparisons. For example, a property built into the side of a hill where the lower level is significantly out of ground, the interior finish is equal throughout the house, and the flow and function of the layout is accepted by the local market, may require the gross living area to include both levels. However, in such instances, the appraiser must be consistent throughout the appraisal in his or her analysis and explain the reason for the deviation, clearly describing the comparisons that were made.
B4-1.4-14
https://www.fanniemae.com/content/guide/sel011713.pdf
A level is considered below-grade if any portion of it is below-grade—regardless of the quality of its finish or the window area of any room. A walk-out basement with finished rooms would not be included in the above-grade room count.
Appraisers may deviate from this approach if the style of the subject property or any of the comparables does not lend itself to such comparisons. However, in such instances, the appraiser must explain the reason for the deviation and clearly
describe the comparisons that were made.
Egress window requirements ensure that homes meet the International Residential Code for fire safety exits in basement level living spaces. Read more here.
www.egresswindows.com
IRC 2015 Egress Window Requirements
The bottom of the egress window opening can’t exceed 44” from the finished floor.
The minimum opening area of the egress window is 5.7 square feet.
The minimum egress window opening height is 24” high.
The minimum egress window opening is 20” wide.
The egress window must have a glass area of not less than 8% of the total floor area of room(s) for which it is servicing, to allow the minimum amount of sufficient natural light. *
The egress window must have a opening area of not less than 4% of the total floor area of room(s) for which it is servicing, to allow the minimum amount of natural ventilation. *
* Multiple windows can be used to service a single area where one window does not meet these percentages of total floor area. As long as the totaled amounts from this combination of windows meet or exceed the 8% for natural light and 4% for natural ventilation.
a basement room with only a door can NOT be a bedroom by definition.