Functional obsolescence

A design or feature that hurts value even when it works fine, because buyers now expect something different. A one-car garage in a three-bedroom neighborhood is a common example.

Property condition · Updated September 2026

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Part 1 of 4

Why a seller cares

A layout or feature buyers no longer want lowers value even when it works: a one-car garage, a bathroom through a bedroom, a kitchen closed off from everything. Some of it can be fixed for the price of a wall; some cannot.

Part 2 of 4

A simple example

A three-bedroom home with one bathroom in a neighborhood where every comp has two. The appraiser adjusts, and buyers with families skip the showing.

Functional obsolescence: a simple example
The featureWhat it does, and whether it is fixable
One bath in a two-bath neighborhoodA real adjustment; fixable at a real cost
A closed-off kitchenA buyer objection; sometimes one wall away from fixed
Low ceilingsNot fixable; priced in

Functional obsolescence is a house working the way houses used to.

Part 3 of 4

What people get wrong

That it means something is broken. Everything works; it is what buyers expect that changed.

Part 4 of 4 · where to read next

Where it appears in the sale

What a definition is, and what it isn't

Keighbor is a software company, not a law firm, brokerage, or tax adviser. This is general information, not legal, tax, financial, or real estate advice about your sale. Your situation may differ. Before acting on a contract, disclosure, title, tax, or pricing question, ask an appropriately licensed professional in your state.

Written and researched by Keighbor Research · drawn from the reference glossary · how we research and check what we publish

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