The Life Expectancy of a Home
A household does not have an average lifespan, this is because repairs, maintenance and renovations can be done to keep it in tact. All components of a household can be replaced and therefore the lifespan generally relies on the homeowner.
However, every component of a house has its own life expectancy that is generally well defined. Stucco for examples, is usually good for about 60 years, HVAC systems is usually good until about 15-20 years, and a plumbing pipe can last anywhere between 40-80 years. Some things on a home last for a very long time, because that’s why they were made, for example brick can last upwards of 100 years.
Since different components can last for different amount of times, a well maintenance 20 year old house for example may have a new coat of paint, but a 5 year old HVAC system.
When evaluating an older home, an expert will care more about the age of the components is more significant than the age of the entire house itself.
A home inspector can gauge a houses overall condition by examining the age of the major components. This can greatly help decide what condition the home is really in.
So When & Why would a House be at it’s End?
The main reason why very old homes need to be taken down is simply because of functional obsolescence. So for example, homes over 50+ years old that have no major upgrades down will need to have many replacements. The plumbing and electrical systems will almost always need to be be replaced completely, The doors & windows are usually deteriorated, & floor plan and detailing is out of its time.
These old homes are usually used by older families, or cheaper living quarters that are being rented out. However, eventually these properties will go into a downhill spiral, not meeting the requirements of modern homes they will eventually fall behind. Numbers of people looking for a retro style home are becoming less – meaning these houses will soon be no ones home. Abandoned houses deteriorate at an increased rate. Roofs Leaks, Mold, and cracks start to take over & soon there is a point of no return.
Eventually the home cannot be rented out, no buyers can be found, and a change is needed to the lot itself to make the land worth while. Eventually these homes are taken down and rebuilt to create space for new families and opportunities.