Apartment Size Trends Over Time
Despite the common belief that apartments are getting bigger, data shows that after peaking in Q4 of 2024 at 1,127 square feet, the average size of new apartments has fallen by roughly 6.7% to 1,052 square feet as of Q3 2025. This shift reflects a broader trend where apartment sizes have generally decreased over the last few decades, though they often fluctuate quarter to quarter.
Has the average apartment size increased or decreased?
While there was a significant spike in late 2024, the long-term trend shows a decrease in space. For example, the average size in the early '90s was around 1,150 square feet, significantly larger than today's average of 1,052 square feet. Over the last few years, national averages have mostly bounced between 1,020 and 1,080 square feet before the recent 2024 peak and subsequent drop.
Why apartments got smaller
Several factors drive the trend toward smaller units. More people are moving into dense city centers where space is at a premium, and there is a rising number of people living alone. To keep units affordable in these high-demand areas, builders have shifted their focus toward offering prime locations and extensive shared amenities — like rooftop decks and fitness centers — instead of larger individual floor plans.
Why apartment sizes are increasing again
While the general trend is down, sizes occasionally "increase" again during certain quarters, as seen in the jump between Q1 2025 (1,028 sq. ft.) and Q2 2025 (1,113 sq. ft.). These temporary increases usually happen when developers start more projects in suburban areas or in the South and Midwest, where land is more available and larger multi-family units are more common.
These averages and market data show that most renters (83.4%) live in units with one or two bedrooms. Specifically, the heart of the national rental market lies between 500 and 1,500 square feet, with 21.2% of apartments measuring 500-749 square feet, 27.7% 750-999 square feet, and 23.5% 1,000-1,499 square feet. Larger apartments above that range make up a much smaller share, as only 4.7% of apartments are 1,500 to 1,999 square feet, while ultra-compact units under 500 square feet represent just 7% of the market.
But when you look at the specific floor plans people rent, two-bedroom units dominate the landscape.
Share of U.S. Rentals by Floor Plan Type
| Floor Plan Type | Share of U.S. Rentals |
|---|
| Studio | 8.1% |
| 1-Bedroom | 38.2% |
| 2-Bedroom | 45.2% |
| 3-Bedroom | 8.5% |
Two-bedroom units make up nearly half (45.2%) of all apartments in the country. One-bedroom and studio apartments together represent roughly the same share, which shows just how many renters live in smaller spaces.
Most renters (83.4%) occupy units with one or two bedrooms, which aligns with national moving trends. For many, these modestly sized homes offer just enough space to live comfortably without feeling weighed down by extra rooms or higher rent.