House Age Calculator

Add the date when your house was built and the structure used to find your house's age.

House Build Date:

Type of Structure:

Created by Helen Stark
Helen Stark
Helen Stark

Student of Harvard university, she loves to observe new things about society, she studies Wikipedia more and learns about quantum physics on the internet. She loves dancing and singing songs.

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Reviewed by Nick Walker
Nick Walker
Nick Walker

Done PHD of nuclear physics from the University of Pennsylvania. He is always seeking ways to explain science in easy terms. Moreover, he loves coffee & its beans more than his girlfriend (not at all).

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Use this house age calculator to find the age of your house in years, months, and days. It also helps to calculate the lifespan of the structure used to build your house. The calculation helps to understand the longevity and potential maintenance needs for your property according to its age.

How to Use This House Age Calculator?

  • Enter the construction date of your house
  • Select the material used to build it
  • Click ‘Calculate’ & get your house age estimations

What is the Average Age of a House?

According to the data from the US Census Bureau's American Housing Survey, the average lifespan of an owner-occupied home in the United States is approximately 40 years. This figure is not accurate but can be considered as a general estimation. In addition to this, the average age of a house can also vary depending on various factors like historical context, location, and construction trends.

Average Life of Different Construction Materials:

Material Expected Life Span
Cement and Bricks Structure 75-100 years
Stone Structure 150-200 Years
Concrete Structure 50-60 Years
Wooden Structure 100-150 Years

Except for basic materials, you can explore the lives of different household appliances and everything related at

House Age Calculator & Its Applications:

The house age calculations by this calculator can help in various practical applications, including:

Repairs & Maintenance:

You can use it to understand the present condition of your property. The calculation helps you identify any potential damages to the property with increasing age and plan renovations accordingly.

Property Valuation:

Calculating the age of a house helps real estate agents in better evaluation of a property that directly impacts its market value.

Insurance Purposes:

The house age affects its insurance rates as well. Insurance companies consider certain factors to predict the house age such as building materials used, electrical and plumbing channels, paint, etc.

For example, a new house is a good-looking property that is less receptive to outdated factors causing potential damage to it. And this is why such houses have higher insurance rates.

The following are the average insurance costs of the houses depending on their age:

Age of property Average buildings insurance cost*
Before 1900

Energy Efficiency:

In a house, the energy-efficient systems might get outdated with the passage of time. These include the HVAC systems, windows, outdated insulation, etc. But if you estimate your house age, you can decide on the upgradation of these areas that can save you huge payments on utilities.

Property Management:

Using a house age calculator helps property managers decide which property might need more maintenance based on its age and set future upgrade priorities according to it.

Selling Costs:

The age of the house can affect its selling costs. Every other buyer tends to purchase a newly built property and that is why, increasing the age of the house decreases its market value over time.

Historical Research:

Calculating property age helps researchers for understanding the house history, development patterns, architectural style, and cultural heritage. 

How does a home's age influence its worth?

The increasing age of a house directly impacts its market worth. Most buyers focus on the age of the house because this factor leads to various potential issues with plumbing & electrical channels and outdated infrastructure.

However, the actual worth of a house depends upon a combination of other factors relative to its age, including location, current condition, market trends, weather preferences, etc.

What’s classified as an old house?

There is no exact answer to this question.

  • If a house is built after 1990, it is classified as new
  • A house older than 50 years is considered as old. 
  • People consider a house old if it was built before 1940.
  • Moreover, if it was built before 1920, it is considered “Antique Property”

Is it ok to buy 20 years old house?

Yes, of course! A 20-year-old house is not considered too old when compared with a 50-year-old house. It is good to know that if the house had any structural issues in the past, it might be repaired which also maintains the overall strength of the building.