What is the average size of a new house in the US?

The median new single-family home completed in the US in 2025 was 2,142 square feet, and the median new home sold was 2,194 square feet, according to the Census Bureau's Characteristics of New Housing.

What percentage of new homes have a basement?

16% of new single-family homes completed in 2025 had a full or partial basement. 75% were built on a slab and 9% on a crawl space (Census Bureau).

What percentage of new homes have a garage?

89% of new single-family homes completed in 2025 had a garage, most often a two-car garage (64%). Another 2% had a carport (Census Bureau).

Does the garage count in a home's square footage?

No. Under ANSI Z765, the standard Fannie Mae and Freddie Mac require for appraisals, a garage is never finished living area, even when it's heated or finished. It can be reported separately.

Home size statistics, checked against the source.

New US homes, their size, foundations and garages, with every figure checked against Census Bureau, NAHB or DOE data and linked to its source.

Updated October 12, 2026 · FloorFigures

Short answer

The median new single-family home completed in the US in 2025 was 2,142 sq ft. 89% had a garage and 16% had a full or partial basement. Every figure below links to its source and was checked on October 12, 2026.

11 figures, each checked against the original source on October 12, 2026. Each one is written to stand on its own, so you can quote it with the link.

Size of new homes

Figure	Statistic	Source
2,142 sq ft	The median size of a new single-family home completed in the US in 2025 was 2,142 square feet.	US Census Bureau, Characteristics of New Housing
2,194 sq ft	The median size of a new single-family home sold in the US in 2025 was 2,194 square feet.	US Census Bureau, Characteristics of New Housing
1,005,000	About 1,005,000 new single-family homes were completed in the US in 2025.	US Census Bureau, Characteristics of New Housing

Basements and foundations

Figure	Statistic	Source
16%	16% of new single-family homes completed in 2025 had a full or partial basement.	US Census Bureau, foundation type of completed homes
75%	75% of new single-family homes completed in 2025 were built on a slab.	US Census Bureau, foundation type of completed homes
9%	9% of new single-family homes completed in 2025 had a crawl space foundation.	US Census Bureau, foundation type of completed homes

Garages

Figure	Statistic	Source
89%	89% of new single-family homes completed in 2025 had a garage: 10% one-car, 64% two-car and 15% three-car or larger.	US Census Bureau, parking facilities of completed homes
9%	9% of new single-family homes completed in 2025 had neither a garage nor a carport, and 2% had a carport.	US Census Bureau, parking facilities of completed homes
66%	66% of occupied US homes had a garage or carport (81% of owner-occupied homes and 39% of rentals), based on 2017 American Housing Survey data.	US Department of Energy, Fact of the Week #1058

How space is used

Figure	Statistic	Source
28%	Bedrooms take up 28.0% of the finished floor space in new US homes, and kitchens 11.2%.	NAHB Eye on Housing (2019)
13.1%	The primary bedroom takes up 13.1% of floor space in new homes under 2,000 sq ft, and 9.2% in homes of 3,500 sq ft or more.	NAHB Eye on Housing (2019)

Why these numbers matter when you measure

Garages are nearly universal in new homes, and never count as living area. Leaving one in is the most common way a square footage figure comes out too high. See does a garage count.
Basements are less common than you might think, but where they exist, any level partly below grade is reported separately from gross living area. See does a basement count.
Room sizes add up to less than the total. Bedrooms and kitchens together are under 40% of the floor space; halls, baths, closets, stairs and walls make up much of the rest. See square footage from a floor plan.

Questions

What is the average size of a new house in the US?: The median new single-family home completed in the US in 2025 was 2,142 square feet, and the median new home sold was 2,194 square feet, according to the Census Bureau's Characteristics of New Housing.
What percentage of new homes have a basement?: 16% of new single-family homes completed in 2025 had a full or partial basement. 75% were built on a slab and 9% on a crawl space (Census Bureau).
What percentage of new homes have a garage?: 89% of new single-family homes completed in 2025 had a garage, most often a two-car garage (64%). Another 2% had a carport (Census Bureau).
Does the garage count in a home's square footage?: No. Under ANSI Z765, the standard Fannie Mae and Freddie Mac require for appraisals, a garage is never finished living area, even when it's heated or finished. It can be reported separately.