How Many People Can Live in a House?

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As a homeowner, home shopper, or landlord, you may wonder how many people can live in your house. Occupancy rules are not always clear-cut.

Guidelines attempt to address comfort and safety, but what constitutes legal compliance can be subjective. These limits can vary based on several factors, including local laws, housing codes, and property size.

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What determines how many people can live in a house?

A combination of things determine how many people can live in a house. Along with state, county, and city ordinances for landlords, broader occupancy rules are typically based on guidelines provided by three main sources:

  • U.S. Department of Housing and Urban Development (HUD): HUD offers recommendations to ensure fair housing and prevent overcrowding.
  • International Property Maintenance Code (IPMC): The IPMC code sets minimum maintenance standards for basic equipment, light, ventilation, heating, sanitation, and fire safety.
  • International Residential Code (IRC): The IRC establishes building standards for one- and two-family dwellings, including room sizes and egress requirements.

Additionally, the number of bedrooms plays a key role in determining how many people can live in a house. Local regulations often specify the maximum number of occupants per bedroom to ensure safety and comfort. Bedroom and other occupancy rate variables include:

  • Local zoning laws and building codes: These regulations often specify the minimum amount of space required per occupant and the number of occupants allowed based on the number of bedrooms and bathrooms.
  • Property size and layout: Larger homes with more bedrooms and bathrooms can typically accommodate more occupants. The overall square footage and available living space are key considerations.
  • Safety standards: Fire codes and other safety regulations may dictate occupancy limits to ensure that residents can safely evacuate in an emergency.
  • Health and habitability standards: These standards ensure that living conditions are safe and healthy for all occupants, which can affect the number of people allowed to live in a house.

Is there one law that governs occupancy limits?

No, there isn’t a single law governing occupancy limits. Instead, occupancy limits are determined by a combination of federal, state, and local regulations, which can vary significantly depending on your location. Such enforceable limits often only apply to rental properties rather than homes with family members

At the federal level, the Fair Housing Act (FHA) sets broad guidelines to prevent discrimination, but it does not specify occupancy limits. State and local governments often have more detailed rules, which can include specific occupancy standards based on square footage, room size, and the number of bedrooms and bathrooms.

How many people can live in a typical house?

According to HUD guidance, an occupancy policy of two persons per bedroom is generally considered reasonable under current federal laws. However, other housing organizations and agencies sometimes use a rule of three people per bedroom. Additionally, children are often counted differently for occupancy rules.

Let’s look at examples for different home sizes. Below, we’ll provide estimates for three typical single-family homes, considering scenarios with two adults and one child per bedroom.

2-bedroom house (up to six people)

In a two-bedroom house, following the HUD guideline, you can generally accommodate up to four adults. If we include children in the occupancy count, a two-bedroom house can reasonably accommodate up to six people, assuming two adults and one child per bedroom. The average size of a two-bedroom house in the U.S. is around 1,000 to 1,200 square feet, providing sufficient space for this occupancy estimate.

3-bedroom house (up to nine people)

A three-bedroom house can typically accommodate up to six adults, according to the HUD guideline. With the inclusion of children, this house could reasonably accommodate up to nine people, assuming two adults and one child per bedroom. The median size of a three-bedroom house in the U.S. is approximately 1,500 to 1,800 square feet, providing ample room for living, dining, and other activities.

4-bedroom house (up to twelve people)

In a four-bedroom house, you can generally accommodate up to eight adults, based on the HUD guideline. Including children, this house could reasonably accommodate up to twelve people, assuming two adults and one child per bedroom. The average size of a four-bedroom house in the U.S. is about 2,000 to 2,400 square feet, offering plenty of space for larger families or groups.

Another way to estimate max occupancy levels

HUD also recommends that each person should have 165 square feet of livable space in a home to avoid overcrowding. If we divide the average square footage of each of our example homes by HUD’s suggested 165-square-foot benchmark, we get similar results:

Home example Square footage Action Number of people
2 bedroom 1,000 Divide by 165 6.06
3 bedroom 1,500 Divide by 165 9.09
4 bedroom 2,000 Divide by 165 12.12

While the estimates above provide a general idea, it’s important to check local regulations and consider the specific layout and size of the house to determine the appropriate occupancy limit.


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