Can someone explain the price difference?

How can one studio apartment of 12 sqm or 130 sqft Flat A04, Du Cane Court, Balham High Road, London, Greater London SW17 7JA sell in January for £475,000 that’s approx £3,653 / square foot

When another just a month later of 25 sqm or 271 sqft Flat F07, Du Cane Court, Balham High Road, London, Greater London SW17 7JN sell in February for £225,000 which is approx £830 / square foot.

That’s a huge difference in value. Almost 4 times the price per sqft.

See on Rightmove and Land Registry.

Flat A04
Flat F07