You can't just look at the size of the plot and the price. Where is the plot?
What you can do with the plot depends where it is located. Inside the village boundary there is a formula that calculates what size house you can build on the plot. You might be able to build a 200 sqm house on a 200 sqm plot or even smaller. Typically, immediately outside the village you need 2,000 sqm to build a 200 sqm house maximum. A little further outside the village you need 4,500 sqm to build a 200 sqm house maximum. Thus you might need to pay the same price for a 200 sqm plot inside the village boundary, a 2,000 sqm plot immediately outside the village boundary and a 4,500 sqm plot a bit further away from the village boundary.
I haven't the foggiest idea how much plots go for on Akrotiri. I know that when I bought, back in 2004, a plot inside the village boundary at Kounoupidiana was about double the price of the same size plot with the same size building permission as a plot in a village to the south west of Chania. As you might guess, I don't now live in Kounoupidiana. I don't know if it applies to Sternes but I was told, at the time, I would need to get security clearance in order to live in that area.