Assuming the needs of a living space is the same across both populations, this graphic seems disingenuous. The pixel count of the apartment suggests it could fit 6½ of the homes per floor. Across 9 floors that's 58 homes worth of square footage.
I assume the homes have garages, which would not account for living space. But garages don't account for 42% of a homes' size.
True, but what I'm saying is that there are losses in livable square footage represented in the apartment. A home's SqFt excludes the garage, so a 1500 SqFt home is actually 1740 SqFt with a 1-car garage. I.e. a 1-car garage only takes up 14% of the area underneath a roof of a 1500 Livable-SqFt house. Yet, the represented apartment has lost 42%.
That implies that if the the houses in the picture are 1500 livable square feet, then the apartments are 1009 livable square feet; a ⅓ loss in livable area.
Apartment Complex = 58 Homes' worth of area including garage (1,740 × 58 = 100,920 SqFt)
100,920 / 100 apartments = 1,009 SqFt per apartment