Horror story: the bedroom that used to be a garage

This is a composite story. The details come from several situations and have been changed so no client, borrower or property can be identified. The lesson is real.

The listing said four bedrooms. The appraisal said three. The buyer had already waived the inspection contingency to win the house.

The story

A buyer falls for a 1970s ranch. Three bedrooms in the original house, plus a fourth that the listing calls a "bonus bedroom." It used to be the garage. The conversion has carpet, a closet, a window air-conditioning unit, and a space heater in the corner. It isn't connected to the home's central system. The floor sits a step lower than the rest of the house, and nobody can find a permit.

What happened in the appraisal

When an appraiser reports a home's finished living area, the question isn't whether a room has carpet and a bed in it. It's whether the space is finished and usable year-round the way the rest of the house is, with similar walls, floors, ceilings and systems.

This room didn't meet that test. It was still reported, as space with some utility, but not as part of the finished living area or the bedroom count the listing advertised. The comparable sales then had to be compared against a three-bedroom house with a converted garage, which is a different property from a four-bedroom house.

The nuance

Unpermitted doesn't automatically mean the space gets no value. Appraisers report what's there, comment on the quality of the work, and analyze how buyers in that market actually treat it. Sometimes the market pays something for the space, and sometimes it doesn't. Some loan programs and lenders also have their own requirements on top of that.

What changes is the certainty. A converted garage is one of the most common gaps between what a listing says and what an appraisal can support.

Three checks before you offer

1. Ask for permits for any conversion, addition or finished space that wasn't original to the house.
2. Check heating and cooling. Is the room served by the same system as the rest of the house, or by a window unit and a space heater?
3. Ask your agent how comparable homes were treated. If similar homes nearby with converted garages sold as three-bedroom homes, expect the appraisal to see it the same way.

None of this means you shouldn't buy the house. It means you should know which house you're buying.